WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMMS.03MS6
Distribution Date: 10/27/2003

Class	Cusip	Orig Prin Bal	Begin Prin Bal	Int Rate Accrued	Int Rate Paid	Int Dist	Prin Dist	Int Shortfall	Prin Loss	Deferred Interest	Int Reimbursed	Unscheduled Int	Prin Reimbursed	Subsequent Recoveries	Total Dist	Ending Class Bal
IA	939336ZC0	$17,512,000.00	$16,955,152.08	5.7500000000%	5.7500000000%	$81,243.44	$51,362.45	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$132,605.89	$16,903,789.63
IIA	939336ZD8	$112,598,000.00	$63,891,982.56	6.0000000000%	6.0000000000%	$319,459.91	$3,194,074.96	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$3,513,534.88	$60,697,907.60
IIIA1	939336ZE6	$78,902,160.00	$76,122,523.82	4.5500000000%	4.5500000000%	$288,631.24	$613,103.69	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$901,734.93	$75,509,420.13
IIIA2	939336ZF3	$2,318,840.00	$2,237,149.82	8.0000000000%	8.0000000000%	$14,914.33	$18,018.38	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$32,932.72	$2,219,131.44
IIIA3	939336ZG1	$10,000,000.00	$9,647,711.03	3.7500000000%	3.7500000000%	$30,149.10	$77,704.30	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$107,853.39	$9,570,006.73
IIIA4	939336ZH9	$7,111,900.00	$2,565,232.20	8.5000000000%	8.5000000000%	$18,170.39	$400,342.14	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$418,512.54	$2,164,890.06
IIIA5	939336ZJ5	$56,105,100.00	$20,236,871.88	4.5000000000%	4.5000000000%	$75,888.27	$3,158,260.93	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$3,234,149.20	$17,078,610.95
IIIA6	939336ZK2	$67,009,000.00	$32,712,703.90	9.5360075792%	9.5360075792%	$259,957.16	$3,029,632.72	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$3,289,589.88	$29,683,071.18
IIIA6_1	XXXXXXXXX	$19,037,426.00	$18,366,758.54	5.7500000000%	5.7500000000%	$88,007.38	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$88,007.38	$18,218,829.56
IIIA6_2	XXXXXXXXX	$12,539,000.00	$12,903,842.38	5.7500000000%	5.7500000000%	$61,830.91	($61,830.91)	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$12,965,673.29
IIIA6_3	XXXXXXXXX	$8,795,408.00	$3,172,466.66	5.7500000000%	5.7500000000%	$15,201.40	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$15,201.40	$2,677,356.66
IIIA6_4	XXXXXXXXX	$54,470,000.00	$19,808,861.52	5.7500000000%	5.7500000000%	$94,917.46	$3,091,463.63	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$3,186,381.10	$16,717,397.89
IIIA7	939336ZL0	$4,638,000.00	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
IIIA8	939336ZM8	$1,000,000.00	$634,815.20	5.7500000000%	5.7500000000%	$3,041.82	$32,275.75	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$35,317.57	$602,539.45
CX	939336ZN6	$2,782,242.00	$1,880,958.76	5.7500000000%	5.7499999923%	$9,012.93	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$9,012.93	$1,840,014.92
IIIX	939336ZP1	$11,146,318.00	$7,265,767.61	5.7500000000%	5.7500000000%	$34,815.14	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$34,815.14	$6,777,673.39
CP	939336ZQ9	$992,767.88	$719,088.68	0.0000000000%	0.0000000000%	$0.00	$27,708.25	$0.00	$0.00	$0.00	$0.00	$0.00	$0.01	$0.00	$27,708.25	$691,380.44
IIIP	939336ZR7	$916,712.53	$680,277.84	0.0000000000%	0.0000000000%	$0.00	$4,404.67	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$4,404.67	$675,873.17
CB1	939336ZS5	$2,368,700.00	$2,354,862.01	5.9663603997%	5.9663603997%	$11,708.30	$2,349.63	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$14,057.93	$2,352,512.38
CB2	939336ZT3	$676,500.00	$672,547.88	5.9663603997%	5.9663603997%	$3,343.89	$671.05	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$4,014.94	$671,876.83
CB3	939336ZU0	$473,500.00	$470,733.81	5.9663603997%	5.9663603997%	$2,340.47	$469.69	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$2,810.16	$470,264.12
CB4	939336YW7	$270,600.00	$269,019.15	5.9663603997%	5.9663603997%	$1,337.55	$268.42	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$1,605.98	$268,750.73
CB5	939336YX5	$202,900.00	$201,714.66	5.9663603997%	5.9663603997%	$1,002.92	$201.27	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$1,204.19	$201,513.39
CB6	939336YY3	$203,036.61	$201,850.43	5.9663603997%	5.9663603997%	$1,003.59	$201.31	$0.00	$0.09	$0.00	$0.00	$0.00	$0.00	$0.00	$1,204.91	$201,649.03
IIIB1	939336ZV8	$3,774,500.00	$3,748,400.12	5.7500000000%	5.7500000000%	$17,961.08	$14,166.90	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$32,127.98	$3,734,233.22
IIIB2	939336ZW6	$1,533,400.00	$1,522,796.87	5.7500000000%	5.7500000000%	$7,296.74	$5,755.34	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$13,052.07	$1,517,041.53
IIIB3	939336ZX4	$1,061,600.00	$1,054,259.26	5.7500000000%	5.7500000000%	$5,051.66	$3,984.52	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$9,036.18	$1,050,274.74
IIIB4	939336YZ0	$589,700.00	$585,622.36	5.7500000000%	5.7500000000%	$2,806.11	$2,213.33	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$5,019.44	$583,409.03
IIIB5	939336ZA4	$471,800.00	$468,537.59	5.7500000000%	5.7500000000%	$2,245.08	$1,770.82	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$4,015.89	$466,766.77
IIIB6	939336ZB2	$471,886.76	$468,623.75	5.7500000000%	5.7500000000%	$2,245.49	$1,771.04	$0.00	$0.09	$0.00	$0.00	$0.00	$0.00	$0.00	$4,016.53	$466,852.62
R	939336ZY2	$100.00	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.

Series: WAMMS.03MS6

Distribution Date: 10/27/2003

Class

Cusip

Orig Prin Bal

Begin Prin Bal

Int Rate Accrued

Int Rate Paid

Int Dist

Prin Dist

Int Shortfall

Prin Loss

Deferred Interest

Int Reimbursed

Unscheduled Int

Prin Reimbursed

Subsequent Recoveries

Total Dist

Ending Class Bal

R_SYN

XXXXXXXXX

$0.00

0.0000000000%

$0.00

Total

$371,202,703.78

$238,422,476.90

$1,193,626.60

$10,640,711.57

$0.00

$0.18

$0.00

$0.01

$0.00

$11,834,338.17

$227,781,765.16

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMMS.03MS6
Distribution Date: 10/27/2003

Class	Orig Face	Beg Bal	Prin Loss	Prin Reimbursed	Subsequent Recoveries	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
IA	$17,512,000.00	$16,955,152.08	$0.00	$0.00	$0.00	$0.00	$51,362.45	0.9652689373	$16,903,789.63
IIA	$112,598,000.00	$63,891,982.56	$0.00	$0.00	$0.00	$0.00	$3,194,074.96	0.5390673689	$60,697,907.60
IIIA1	$78,902,160.00	$76,122,523.82	$0.00	$0.00	$0.00	$0.00	$613,103.69	0.9570006718	$75,509,420.13
IIIA2	$2,318,840.00	$2,237,149.82	$0.00	$0.00	$0.00	$0.00	$18,018.38	0.9570006728	$2,219,131.44
IIIA3	$10,000,000.00	$9,647,711.03	$0.00	$0.00	$0.00	$0.00	$77,704.30	0.9570006730	$9,570,006.73
IIIA4	$7,111,900.00	$2,565,232.20	$0.00	$0.00	$0.00	$0.00	$400,342.14	0.3044038949	$2,164,890.06
IIIA5	$56,105,100.00	$20,236,871.88	$0.00	$0.00	$0.00	$0.00	$3,158,260.93	0.3044038947	$17,078,610.95
IIIA6	$67,009,000.00	$32,712,703.90	$0.00	$0.00	$0.00	$0.00	$3,029,632.72	0.4429714095	$29,683,071.18
IIIA6_1	$19,037,426.00	$18,366,758.54	$0.00	$0.00	$0.00	$0.00	$0.00	0.9570006765	$18,218,829.56
IIIA6_2	$12,539,000.00	$12,903,842.38	$0.00	$0.00	$0.00	$0.00	($61,830.91)	1.0340276968	$12,965,673.29
IIIA6_3	$8,795,408.00	$3,172,466.66	$0.00	$0.00	$0.00	$0.00	$0.00	0.3044039185	$2,677,356.66
IIIA6_4	$54,470,000.00	$19,808,861.52	$0.00	$0.00	$0.00	$0.00	$3,091,463.63	0.3069101871	$16,717,397.89
IIIA7	$4,638,000.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
IIIA8	$1,000,000.00	$634,815.20	$0.00	$0.00	$0.00	$0.00	$32,275.75	0.6025394500	$602,539.45
CX	$2,782,242.00	$1,880,958.76	$0.00	$0.00	$0.00	$0.00	$0.00	0.6613425144	$1,840,014.92
IIIX	$11,146,318.00	$7,265,767.61	$0.00	$0.00	$0.00	$0.00	$0.00	0.6080638817	$6,777,673.39
CP	$992,767.88	$719,088.68	$0.00	$0.01	$0.00	$0.00	$27,708.25	0.6964170114	$691,380.44
IIIP	$916,712.53	$680,277.84	$0.00	$0.00	$0.00	$0.00	$4,404.67	0.7372792974	$675,873.17
CB1	$2,368,700.00	$2,354,862.01	$0.00	$0.00	$0.00	$0.00	$2,349.63	0.9931660320	$2,352,512.38
CB2	$676,500.00	$672,547.88	$0.00	$0.00	$0.00	$0.00	$671.05	0.9931660458	$671,876.83
CB3	$473,500.00	$470,733.81	$0.00	$0.00	$0.00	$0.00	$469.69	0.9931660401	$470,264.12
CB4	$270,600.00	$269,019.15	$0.00	$0.00	$0.00	$0.00	$268.42	0.9931660384	$268,750.73
CB5	$202,900.00	$201,714.66	$0.00	$0.00	$0.00	$0.00	$201.27	0.9931660424	$201,513.39
CB6	$203,036.61	$201,850.43	$0.09	$0.00	$0.00	$0.00	$201.31	0.9931658630	$201,649.03
IIIB1	$3,774,500.00	$3,748,400.12	$0.00	$0.00	$0.00	$0.00	$14,166.90	0.9893318903	$3,734,233.22
IIIB2	$1,533,400.00	$1,522,796.87	$0.00	$0.00	$0.00	$0.00	$5,755.34	0.9893318964	$1,517,041.53
IIIB3	$1,061,600.00	$1,054,259.26	$0.00	$0.00	$0.00	$0.00	$3,984.52	0.9893318953	$1,050,274.74
IIIB4	$589,700.00	$585,622.36	$0.00	$0.00	$0.00	$0.00	$2,213.33	0.9893319145	$583,409.03
IIIB5	$471,800.00	$468,537.59	$0.00	$0.00	$0.00	$0.00	$1,770.82	0.9893318567	$466,766.77
IIIB6	$471,886.76	$468,623.75	$0.09	$0.00	$0.00	$0.00	$1,771.04	0.9893318897	$466,852.62
R	$100.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMMS.03MS6
Distribution Date: 10/27/2003

Class	Orig Face	Beg Bal	Prin Loss	Prin Reimbursed	Subsequent Recoveries	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
R_SYN	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
Total	$371,202,703.78	$238,422,476.90	$0.18	$0.01	$0.00	$0.00	$10,640,711.57	0.6136317512	$227,781,765.16

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMMS.03MS6
Distribution Date: 10/27/2003
PER $1000 DENOMINATION
Class	Orig Face	Beg Bal	Prin Loss	Prin Reimbursed	Subsequent Recoveries	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
IA	$17,512,000.00	968.20192325	0.00000000	0.00000000	0.00000000	0.00000000	2.93298595	0.9652689373	965.26893730
IIA	$112,598,000.00	567.43443543	0.00000000	0.00000000	0.00000000	0.00000000	28.36706656	0.5390673689	539.06736887
IIIA1	$78,902,160.00	964.77110158	0.00000000	0.00000000	0.00000000	0.00000000	7.77042973	0.9570006718	957.00067184
IIIA2	$2,318,840.00	964.77110107	0.00000000	0.00000000	0.00000000	0.00000000	7.77042832	0.9570006728	957.00067275
IIIA3	$10,000,000.00	964.77110300	0.00000000	0.00000000	0.00000000	0.00000000	7.77043000	0.9570006730	957.00067300
IIIA4	$7,111,900.00	360.69576344	0.00000000	0.00000000	0.00000000	0.00000000	56.29186856	0.3044038949	304.40389488
IIIA5	$56,105,100.00	360.69576349	0.00000000	0.00000000	0.00000000	0.00000000	56.29186883	0.3044038947	304.40389465
IIIA6	$67,009,000.00	488.18373502	0.00000000	0.00000000	0.00000000	0.00000000	45.21232551	0.4429714095	442.97140951
IIIA6_1	$19,037,426.00	964.77110614	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.9570006765	957.00067646
IIIA6_2	$12,539,000.00	1,029.09660898	0.00000000	0.00000000	0.00000000	0.00000000	-4.93108781	1.0340276968	1,034.02769679
IIIA6_3	$8,795,408.00	360.69579262	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.3044039185	304.40391850
IIIA6_4	$54,470,000.00	363.66553185	0.00000000	0.00000000	0.00000000	0.00000000	56.75534478	0.3069101871	306.91018708
IIIA7	$4,638,000.00	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000
IIIA8	$1,000,000.00	634.81520000	0.00000000	0.00000000	0.00000000	0.00000000	32.27575000	0.6025394500	602.53945000
CX	$2,782,242.00	676.05864623	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.6613425144	661.34251442
IIIX	$11,146,318.00	651.85360852	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.6080638817	608.06388172
CP	$992,767.88	724.32710051	0.00000000	0.00001007	0.00000000	0.00000000	27.91009919	0.6964170114	696.41701140
IIIP	$916,712.53	742.08415151	0.00000000	0.00000000	0.00000000	0.00000000	4.80485415	0.7372792974	737.27929736
CB1	$2,368,700.00	994.15798117	0.00000000	0.00000000	0.00000000	0.00000000	0.99194917	0.9931660320	993.16603200
CB2	$676,500.00	994.15798965	0.00000000	0.00000000	0.00000000	0.00000000	0.99194383	0.9931660458	993.16604582
CB3	$473,500.00	994.15799366	0.00000000	0.00000000	0.00000000	0.00000000	0.99195354	0.9931660401	993.16604013
CB4	$270,600.00	994.15798226	0.00000000	0.00000000	0.00000000	0.00000000	0.99194383	0.9931660384	993.16603843
CB5	$202,900.00	994.15800887	0.00000000	0.00000000	0.00000000	0.00000000	0.99196649	0.9931660424	993.16604239
CB6	$203,036.61	994.15780238	0.00044327	0.00000000	0.00000000	0.00000000	0.99149607	0.9931658630	993.16586304
IIIB1	$3,774,500.00	993.08520864	0.00000000	0.00000000	0.00000000	0.00000000	3.75331832	0.9893318903	989.33189032
IIIB2	$1,533,400.00	993.08521586	0.00000000	0.00000000	0.00000000	0.00000000	3.75331942	0.9893318964	989.33189644
IIIB3	$1,061,600.00	993.08521100	0.00000000	0.00000000	0.00000000	0.00000000	3.75331575	0.9893318953	989.33189525
IIIB4	$589,700.00	993.08522978	0.00000000	0.00000000	0.00000000	0.00000000	3.75331525	0.9893319145	989.33191453
IIIB5	$471,800.00	993.08518440	0.00000000	0.00000000	0.00000000	0.00000000	3.75332768	0.9893318567	989.33185672
IIIB6	$471,886.76	993.08518425	0.00019072	0.00000000	0.00000000	0.00000000	3.75310382	0.9893318897	989.33188971
R	$100.00	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMMS.03MS6
Distribution Date: 10/27/2003
PER $1000 DENOMINATION
Class	Orig Face	Beg Bal	Prin Loss	Prin Reimbursed	Subsequent Recoveries	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
R_SYN	$0.00	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMMS.03MS6
Distribution Date: 10/27/2003

Class	Orig Face	Int Rate Accrued	Int Rate Paid	Beg Cert Prin/Not Bal	Curent Int Accrued	Int Shortfall	Unscheduled Int	Int Reimbursed	Total Int Dist
IA	$17,512,000.00	5.7500000000%	5.7500000000%	$16,955,152.08	$81,243.44	$0.00	$0.00	$0.00	$81,243.44
IIA	$112,598,000.00	6.0000000000%	6.0000000000%	$63,891,982.56	$319,459.91	$0.00	$0.00	$0.00	$319,459.91
IIIA1	$78,902,160.00	4.5500000000%	4.5500000000%	$76,122,523.82	$288,631.24	$0.00	$0.00	$0.00	$288,631.24
IIIA2	$2,318,840.00	8.0000000000%	8.0000000000%	$2,237,149.82	$14,914.33	$0.00	$0.00	$0.00	$14,914.33
IIIA3	$10,000,000.00	3.7500000000%	3.7500000000%	$9,647,711.03	$30,149.10	$0.00	$0.00	$0.00	$30,149.10
IIIA4	$7,111,900.00	8.5000000000%	8.5000000000%	$2,565,232.20	$18,170.39	$0.00	$0.00	$0.00	$18,170.39
IIIA5	$56,105,100.00	4.5000000000%	4.5000000000%	$20,236,871.88	$75,888.27	$0.00	$0.00	$0.00	$75,888.27
IIIA6	$67,009,000.00	9.5360075792%	9.5360075792%	$32,712,703.90	$259,957.16	$0.00	$0.00	$0.00	$259,957.16
IIIA6_1	$19,037,426.00	5.7500000000%	5.7500000000%	$18,366,758.54	$88,007.38	$0.00	$0.00	$0.00	$88,007.38
IIIA6_2	$12,539,000.00	5.7500000000%	5.7500000000%	$12,903,842.38	$61,830.91	$0.00	$0.00	$0.00	$61,830.91
IIIA6_3	$8,795,408.00	5.7500000000%	5.7500000000%	$3,172,466.66	$15,201.40	$0.00	$0.00	$0.00	$15,201.40
IIIA6_4	$54,470,000.00	5.7500000000%	5.7500000000%	$19,808,861.52	$94,917.46	$0.00	$0.00	$0.00	$94,917.46
IIIA7	$4,638,000.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
IIIA8	$1,000,000.00	5.7500000000%	5.7500000000%	$634,815.20	$3,041.82	$0.00	$0.00	$0.00	$3,041.82
CX	$2,782,242.00	5.7500000000%	5.7499999923%	$1,880,958.76	$9,012.93	$0.00	$0.00	$0.00	$9,012.93
IIIX	$11,146,318.00	5.7500000000%	5.7500000000%	$7,265,767.61	$34,815.14	$0.00	$0.00	$0.00	$34,815.14
CP	$992,767.88	0.0000000000%	0.0000000000%	$719,088.68	$0.00	$0.00	$0.00	$0.00	$0.00
IIIP	$916,712.53	0.0000000000%	0.0000000000%	$680,277.84	$0.00	$0.00	$0.00	$0.00	$0.00
CB1	$2,368,700.00	5.9663603997%	5.9663603997%	$2,354,862.01	$11,708.30	$0.00	$0.00	$0.00	$11,708.30
CB2	$676,500.00	5.9663603997%	5.9663603997%	$672,547.88	$3,343.89	$0.00	$0.00	$0.00	$3,343.89
CB3	$473,500.00	5.9663603997%	5.9663603997%	$470,733.81	$2,340.47	$0.00	$0.00	$0.00	$2,340.47
CB4	$270,600.00	5.9663603997%	5.9663603997%	$269,019.15	$1,337.55	$0.00	$0.00	$0.00	$1,337.55
CB5	$202,900.00	5.9663603997%	5.9663603997%	$201,714.66	$1,002.92	$0.00	$0.00	$0.00	$1,002.92
CB6	$203,036.61	5.9663603997%	5.9663603997%	$201,850.43	$1,003.59	$0.00	$0.00	$0.00	$1,003.59
IIIB1	$3,774,500.00	5.7500000000%	5.7500000000%	$3,748,400.12	$17,961.08	$0.00	$0.00	$0.00	$17,961.08
IIIB2	$1,533,400.00	5.7500000000%	5.7500000000%	$1,522,796.87	$7,296.74	$0.00	$0.00	$0.00	$7,296.74
IIIB3	$1,061,600.00	5.7500000000%	5.7500000000%	$1,054,259.26	$5,051.66	$0.00	$0.00	$0.00	$5,051.66
IIIB4	$589,700.00	5.7500000000%	5.7500000000%	$585,622.36	$2,806.11	$0.00	$0.00	$0.00	$2,806.11
IIIB5	$471,800.00	5.7500000000%	5.7500000000%	$468,537.59	$2,245.08	$0.00	$0.00	$0.00	$2,245.08
IIIB6	$471,886.76	5.7500000000%	5.7500000000%	$468,623.75	$2,245.49	$0.00	$0.00	$0.00	$2,245.49
R	$100.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMMS.03MS6
Distribution Date: 10/27/2003

Class	Orig Face	Int Rate Accrued	Int Rate Paid	Beg Cert Prin/Not Bal	Curent Int Accrued	Int Shortfall	Unscheduled Int	Int Reimbursed	Total Int Dist
R_SYN	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
Total	$371,202,703.78			$238,422,476.90	$1,193,626.60	$0.00	$0.00	$0.00	$1,193,626.60

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMMS.03MS6
Distribution Date: 10/27/2003
PER $1000 DENOMINATION
Class	Orig Face	Int Rate Accrued	Int Rate Paid	Beg Cert Prin/Not Bal	Curent Int Accrued	Int Shortfall	Unscheduled Int	Int Reimbursed	Total Int Dist
IA	$17,512,000.00	5.7500000000%	5.7500000000%	968.20192325	4.63930105	0.00000000	0.00000000	0.00000000	4.63930105
IIA	$112,598,000.00	6.0000000000%	6.0000000000%	567.43443543	2.83717215	0.00000000	0.00000000	0.00000000	2.83717215
IIIA1	$78,902,160.00	4.5500000000%	4.5500000000%	964.77110158	3.65809048	0.00000000	0.00000000	0.00000000	3.65809048
IIIA2	$2,318,840.00	8.0000000000%	8.0000000000%	964.77110107	6.43180642	0.00000000	0.00000000	0.00000000	6.43180642
IIIA3	$10,000,000.00	3.7500000000%	3.7500000000%	964.77110300	3.01491000	0.00000000	0.00000000	0.00000000	3.01491000
IIIA4	$7,111,900.00	8.5000000000%	8.5000000000%	360.69576344	2.55492766	0.00000000	0.00000000	0.00000000	2.55492766
IIIA5	$56,105,100.00	4.5000000000%	4.5000000000%	360.69576349	1.35260912	0.00000000	0.00000000	0.00000000	1.35260912
IIIA6	$67,009,000.00	9.5360075792%	9.5360075792%	488.18373502	3.87943649	0.00000000	0.00000000	0.00000000	3.87943649
IIIA6_1	$19,037,426.00	5.7500000000%	5.7500000000%	964.77110614	4.62286130	0.00000000	0.00000000	0.00000000	4.62286130
IIIA6_2	$12,539,000.00	5.7500000000%	5.7500000000%	1,029.09660898	4.93108781	0.00000000	0.00000000	0.00000000	4.93108781
IIIA6_3	$8,795,408.00	5.7500000000%	5.7500000000%	360.69579262	1.72833369	0.00000000	0.00000000	0.00000000	1.72833369
IIIA6_4	$54,470,000.00	5.7500000000%	5.7500000000%	363.66553185	1.74256398	0.00000000	0.00000000	0.00000000	1.74256398
IIIA7	$4,638,000.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
IIIA8	$1,000,000.00	5.7500000000%	5.7500000000%	634.81520000	3.04182000	0.00000000	0.00000000	0.00000000	3.04182000
CX	$2,782,242.00	5.7500000000%	5.7499999923%	676.05864623	3.23944862	0.00000000	0.00000000	0.00000000	3.23944862
IIIX	$11,146,318.00	5.7500000000%	5.7500000000%	651.85360852	3.12346552	0.00000000	0.00000000	0.00000000	3.12346552
CP	$992,767.88	0.0000000000%	0.0000000000%	724.32710051	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
IIIP	$916,712.53	0.0000000000%	0.0000000000%	742.08415151	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
CB1	$2,368,700.00	5.9663603997%	5.9663603997%	994.15798117	4.94292228	0.00000000	0.00000000	0.00000000	4.94292228
CB2	$676,500.00	5.9663603997%	5.9663603997%	994.15798965	4.94292683	0.00000000	0.00000000	0.00000000	4.94292683
CB3	$473,500.00	5.9663603997%	5.9663603997%	994.15799366	4.94291447	0.00000000	0.00000000	0.00000000	4.94291447
CB4	$270,600.00	5.9663603997%	5.9663603997%	994.15798226	4.94290466	0.00000000	0.00000000	0.00000000	4.94290466
CB5	$202,900.00	5.9663603997%	5.9663603997%	994.15800887	4.94292755	0.00000000	0.00000000	0.00000000	4.94292755
CB6	$203,036.61	5.9663603997%	5.9663603997%	994.15780238	4.94290168	0.00000000	0.00000000	0.00000000	4.94290168
IIIB1	$3,774,500.00	5.7500000000%	5.7500000000%	993.08520864	4.75853226	0.00000000	0.00000000	0.00000000	4.75853226
IIIB2	$1,533,400.00	5.7500000000%	5.7500000000%	993.08521586	4.75853659	0.00000000	0.00000000	0.00000000	4.75853659
IIIB3	$1,061,600.00	5.7500000000%	5.7500000000%	993.08521100	4.75853429	0.00000000	0.00000000	0.00000000	4.75853429
IIIB4	$589,700.00	5.7500000000%	5.7500000000%	993.08522978	4.75853824	0.00000000	0.00000000	0.00000000	4.75853824
IIIB5	$471,800.00	5.7500000000%	5.7500000000%	993.08518440	4.75854175	0.00000000	0.00000000	0.00000000	4.75854175
IIIB6	$471,886.76	5.7500000000%	5.7500000000%	993.08518425	4.75853571	0.00000000	0.00000000	0.00000000	4.75853571
R	$100.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMMS.03MS6
Distribution Date: 10/27/2003
PER $1000 DENOMINATION
Class	Orig Face	Int Rate Accrued	Int Rate Paid	Beg Cert Prin/Not Bal	Curent Int Accrued	Int Shortfall	Unscheduled Int	Int Reimbursed	Total Int Dist
R_SYN	$0.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
10/2003 DISTRIBUTION REPORT
SERIES: WAMMS 03MS6
WEIGHTED AVERAGE PC RATE: 6.02475%
WEIGHTED AVERAGE MATURITY: 348.58824
WEIGHTED AVERAGE LOAN AGE: 9.13924
POOL NUMBER: Group 1(2060,2061)
ISSUE DATE: 03/28/2003
CERTIFICATE BALANCE AT ISSUE: $135,298,004.49
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	202		$85,736,951.26
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		$85,653.81
Unscheduled Principal Collection/Reversals		$35,792.48
Liquidations-in-full	7	$3,155,860.83
Subsequent Recoveries		$0.00
Net principal Distributed		$3,277,307.12	-$3,277,307.12

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	195		$82,459,644.14

SCHEDULED INTEREST AT MORTGAGE RATE:		$451,887.27

UNSCHEDULED INTEREST AT MORTGAGE RATE:
Unscheduled Interest Collection/Reversals		$0.00
Interest Uncollected on Liquidation		$0.00
Interest Uncollected on Non-Earning Assets		$0.00
Net Unscheduled Interest Distributed		$0.00

OTHER:
Loan Conversion Fees		$0.00
Expense Reimbursements		$0.00
Gain on Liquidations		$0.00
Hazard Insurance Premium Refunds		$0.00
Recoveries Carried Forward		$0.00
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
10/2003 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$21,434.36

UNSCHEDULED SERVICING FEES:
Unscheduled Service Fee Collections/Reversals		$0.00
Servicing Fees Uncollected on Liquidation		$0.00
Servicing Fees Uncollected/Non-Earning Assets		$0.00
Net Unscheduled Service Fees Distributed		$0.00

MISCELLANEOUS EXPENSES:		$0.00

NET FUNDS DISTRIBUTED:		$3,707,760.03

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
10/2003 DISTRIBUTION REPORT
SERIES: WAMMS 03MS6
WEIGHTED AVERAGE PC RATE: 5.98239%
WEIGHTED AVERAGE MATURITY: 346.61528
WEIGHTED AVERAGE LOAN AGE: 9.11812
POOL NUMBER: 2060
ISSUE DATE: 03/28/2003
CERTIFICATE BALANCE AT ISSUE: $18,187,999.46
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	49		$17,627,059.41
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		$17,802.50
Unscheduled Principal Collection/Reversals		$34,275.22
Liquidations-in-full	0	$0.00
Subsequent Recoveries		$0.00
Net principal Distributed		$52,077.72	-$52,077.72

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	49		$17,574,981.69

SCHEDULED INTEREST AT MORTGAGE RATE:		$92,283.38

UNSCHEDULED INTEREST AT MORTGAGE RATE:
Unscheduled Interest Collection/Reversals		$0.00
Interest Uncollected on Liquidation		$0.00
Interest Uncollected on Non-Earning Assets		$0.00
Net Unscheduled Interest Distributed		$0.00

OTHER:
Loan Conversion Fees		$0.00
Expense Reimbursements		$0.00
Gain on Liquidations		$0.00
Hazard Insurance Premium Refunds		$0.00
Recoveries Carried Forward		$0.00
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
10/2003 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$4,406.78

UNSCHEDULED SERVICING FEES:
Unscheduled Service Fee Collections/Reversals		$0.00
Servicing Fees Uncollected on Liquidation		$0.00
Servicing Fees Uncollected/Non-Earning Assets		$0.00
Net Unscheduled Service Fees Distributed		$0.00

MISCELLANEOUS EXPENSES:		$0.00

NET FUNDS DISTRIBUTED:		$139,954.32

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
10/2003 DISTRIBUTION REPORT
SERIES: WAMMS 03MS6
WEIGHTED AVERAGE PC RATE: 6.03571%
WEIGHTED AVERAGE MATURITY: 349.12265
WEIGHTED AVERAGE LOAN AGE: 9.14496
POOL NUMBER: 2061
ISSUE DATE: 03/28/2003
CERTIFICATE BALANCE AT ISSUE: $117,110,005.03
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	153		$68,109,891.85
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		$67,851.31
Unscheduled Principal Collection/Reversals		$1,517.26
Liquidations-in-full	7	$3,155,860.83
Subsequent Recoveries		$0.00
Net principal Distributed		$3,225,229.40	-$3,225,229.40

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	146		$64,884,662.45

SCHEDULED INTEREST AT MORTGAGE RATE:		$359,603.89

UNSCHEDULED INTEREST AT MORTGAGE RATE:
Unscheduled Interest Collection/Reversals		$0.00
Interest Uncollected on Liquidation		$0.00
Interest Uncollected on Non-Earning Assets		$0.00
Net Unscheduled Interest Distributed		$0.00

OTHER:
Loan Conversion Fees		$0.00
Expense Reimbursements		$0.00
Gain on Liquidations		$0.00
Hazard Insurance Premium Refunds		$0.00
Recoveries Carried Forward		$0.00
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
10/2003 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$17,027.58

UNSCHEDULED SERVICING FEES:
Unscheduled Service Fee Collections/Reversals		$0.00
Servicing Fees Uncollected on Liquidation		$0.00
Servicing Fees Uncollected/Non-Earning Assets		$0.00
Net Unscheduled Service Fees Distributed		$0.00

MISCELLANEOUS EXPENSES:		$0.00

NET FUNDS DISTRIBUTED:		$3,567,805.71

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
10/2003 DISTRIBUTION REPORT
SERIES: WAMMS 03MS6
WEIGHTED AVERAGE PC RATE: 5.99800%
WEIGHTED AVERAGE MATURITY: 349.27073
WEIGHTED AVERAGE LOAN AGE: 8.56234
POOL NUMBER: 2062
ISSUE DATE: 03/28/2003
CERTIFICATE BALANCE AT ISSUE: $235,904,699.29
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	381		$152,685,525.65
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		$575,234.85
Unscheduled Principal Collection/Reversals		$9,368.57
Liquidations-in-full	15	$6,778,801.21
Subsequent Recoveries		$0.00
Net principal Distributed		$7,363,404.63	-$7,363,404.63

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	366		$145,322,121.02

SCHEDULED INTEREST AT MORTGAGE RATE:		$800,411.96

UNSCHEDULED INTEREST AT MORTGAGE RATE:
Unscheduled Interest Collection/Reversals		$0.00
Interest Uncollected on Liquidation		$0.00
Interest Uncollected on Non-Earning Assets		$0.00
Net Unscheduled Interest Distributed		$0.00

OTHER:
Loan Conversion Fees		$0.00
Expense Reimbursements		$0.00
Gain on Liquidations		$0.00
Hazard Insurance Premium Refunds		$0.00
Recoveries Carried Forward		$0.00
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
10/2003 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$37,238.45

UNSCHEDULED SERVICING FEES:
Unscheduled Service Fee Collections/Reversals		$0.00
Servicing Fees Uncollected on Liquidation		$0.00
Servicing Fees Uncollected/Non-Earning Assets		$0.00
Net Unscheduled Service Fees Distributed		$0.00

MISCELLANEOUS EXPENSES:		$0.00

NET FUNDS DISTRIBUTED:		$8,126,578.14

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
10/2003 DISTRIBUTION REPORT
SERIES: WAMMS 03MS6
WEIGHTED AVERAGE PC RATE: 6.00762%
WEIGHTED AVERAGE MATURITY: 349.02366
WEIGHTED AVERAGE LOAN AGE: 8.77118
POOL NUMBER: ALL
ISSUE DATE: 03/28/2003
CERTIFICATE BALANCE AT ISSUE: $371,202,703.78
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	583		$238,422,476.91
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		$660,888.66
Unscheduled Principal Collection/Reversals		$45,161.05
Liquidations-in-full	22	$9,934,662.04
Subsequent Recoveries		$0.00
Net principal Distributed		$10,640,711.75	-$10,640,711.75

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	561		$227,781,765.16

SCHEDULED INTEREST AT MORTGAGE RATE:		$1,252,299.23

UNSCHEDULED INTEREST AT MORTGAGE RATE:
Unscheduled Interest Collection/Reversals		$0.00
Interest Uncollected on Liquidation		$0.00
Interest Uncollected on Non-Earning Assets		$0.00
Net Unscheduled Interest Distributed		$0.00

OTHER:
Loan Conversion Fees		$0.00
Expense Reimbursements		$0.00
Gain on Liquidations		$0.00
Hazard Insurance Premium Refunds		$0.00
Recoveries Carried Forward		$0.00
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
10/2003 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$58,672.81

UNSCHEDULED SERVICING FEES:
Unscheduled Service Fee Collections/Reversals		$0.00
Servicing Fees Uncollected on Liquidation		$0.00
Servicing Fees Uncollected/Non-Earning Assets		$0.00
Net Unscheduled Service Fees Distributed		$0.00

MISCELLANEOUS EXPENSES:		$0.00

NET FUNDS DISTRIBUTED:		$11,834,338.17

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMMS.03MS6
Distribution Date: 10/27/2003

Distribution by Group
Pool ID		Principal		Interest		Total
Group 1(2060,2061)		$3,277,307.12		$430,452.91		$3,707,760.03
Pool - 2060		$52,077.72		$87,876.60		$139,954.32
Pool - 2061		$3,225,229.40		$342,576.31		$3,567,805.71
Pool - 2062		$7,363,404.63		$763,173.51		$8,126,578.14
Aggregate		$10,640,711.75		$1,193,626.42		$11,834,338.17

Number of Loans and Aggregate Principal Balance By Group
Pool ID	Beg Bal	Beg Count	Paid Off / Liq Count	Rem Count	Sched Prin End Bal	Sched Prin	Prin PrePay / Liq	Unsched Prin / Rev	Total Prin
Group 1(2060,2061)	$85,736,951.26	202	7	195	$82,459,644.14	$85,653.81	$3,155,860.83	$35,792.48	$3,277,307.12
Pool - 2060	$17,627,059.41	49	0	49	$17,574,981.69	$17,802.50	$0.00	$34,275.22	$52,077.72
Pool - 2061	$68,109,891.85	153	7	146	$64,884,662.45	$67,851.31	$3,155,860.83	$1,517.26	$3,225,229.40
Pool - 2062	$152,685,525.65	381	15	366	$145,322,121.02	$575,234.85	$6,778,801.21	$9,368.57	$7,363,404.63
Aggregate	$238,422,476.91	583	22	561	$227,781,765.16	$660,888.66	$9,934,662.04	$45,161.05	$10,640,711.75

Delinquency Information by Group
Pool ID	1 Month Count	Sched End Balance	2 Months Count	Sched End Balance	3 Months Count	Sched End Balance	4 Months Count	Sched End Balance
Group 1(2060,2061)	0	$0.00	0	$0.00	0	$0.00	0	$0.00
Pool - 2060	0	$0.00	0	$0.00	0	$0.00	0	$0.00
Pool - 2061	0	$0.00	0	$0.00	0	$0.00	0	$0.00
Pool - 2062	5	$2,263,727.38	2	$1,012,368.60	0	$0.00	0	$0.00
Aggregate	5	$2,263,727.38	2	$1,012,368.60	0	$0.00	0	$0.00

Foreclosure and REO Information by Group
Pool ID		Foreclosure Count		Sched End Balance		REO Count		Sched End Balance
Group 1(2060,2061)		0		$0.00		0		$0.00
Pool - 2060		0		$0.00		0		$0.00
Pool - 2061		0		$0.00		0		$0.00
Pool - 2062		0		$0.00		0		$0.00
Aggregate		0		$0.00		0		$0.00

Aggregate Loss Amounts by Group
Pool ID			Count			Loss Amount
Group 1(2060,2061)			0			$0.00
Group 2(2062)			0			$0.00
Aggregate			0			$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMMS.03MS6
Distribution Date: 10/27/2003

INSURANCE RESERVES - Group 1(2060,2061)
Insurance Type	Original Balance	Claims In Progress	Claims Paid	Coverage Adjustments	Coverage Remaining
MPI	$0.00	$0.00	$0.00	$0.00	$0.00
Special Hazard	$2,656,137.00	$0.00	$0.00	$0.00	$2,656,137.00
Bankruptcy Bond
Single-Units	$100,000.00	$0.00	$0.00	$0.00	$100,000.00
Multi-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Mortgage Repurchase	$2,342,200.10	$0.00	$0.00	$0.00	$2,342,200.10

INSURANCE RESERVES - Group 2(2062)
Insurance Type	Original Balance	Claims In Progress	Claims Paid	Coverage Adjustments	Coverage Remaining
MPI	$0.00	$0.00	$0.00	$0.00	$0.00
Special Hazard	$2,452,017.00	$0.00	$0.00	$0.00	$2,452,017.00
Bankruptcy Bond
Single-Units	$100,000.00	$0.00	$0.00	$0.00	$100,000.00
Multi-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Mortgage Repurchase	$4,718,093.98	$0.00	$0.00	$0.00	$4,718,093.98

INSURANCE RESERVES - Aggregate
Insurance Type	Original Balance	Claims In Progress	Claims Paid	Coverage Adjustments	Coverage Remaining
MPI	$0.00	$0.00	$0.00	$0.00	$0.00
Special Hazard	$5,108,154.00	$0.00	$0.00	$0.00	$5,108,154.00
Bankruptcy Bond
Single-Units	$200,000.00	$0.00	$0.00	$0.00	$200,000.00
Multi-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Mortgage Repurchase	$6,071,074.02	$0.00	$0.00	$0.00	$6,071,074.02

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMMS.03MS6
Distribution Date: 10/27/2003

The Group C-B Certificates provide, to the limited extent described in the Prospectus Supplement, credit support, as well as special hazard, bankruptcy, and fraud coverage to certain Group I and Group II Certificates. The "Prospectus Supplement" is that certain Prospectus Supplement, dated March 26, 2003 to that certain Prospectus Supplement, dated March 19, 2003, to which certain of the Group I and Group II certificates were offered. The special hazard, bankruptcy, and Fraud coverage (collectively, "Credit Enhancements") provided by the C-B certificates provide coverage to the Group I and Group II Loans, subject to the conditions and limitations to payment specified thereunder.



The Class Principal Balances of each Class of the Class CB1,CB2,CB3,CB4,CB5,CB6 Certificatesimmediately after the principal and interest distribution on 200310 are as follows:

Class			Class Principal Balance
CB1			$2,352,512.38
CB2			$671,876.83
CB3			$470,264.12
CB4			$268,750.73
CB5			$201,513.39
CB6			$201,649.03
Total			$4,166,566.48
Capitalized items used but not defined herein have the meanings ascribed to them in the Prospectus Supplement.
The amount of the special hazard coverage, bankruptcy coverage, and fraud coverage, as of the above referenced distribution date, is $2,656,137.00, $100,000.00, $363,759.98 respectively, and such coverages are referred to in the table above under the column "Insurance Type" as "special hazard," "bankruptcy bond," and "mortgage repurchase," respectively. However, no policy of insurance exists for any such coverage, notwithstanding the reference to "insurance."



The Group III-B Certificates provide, to the limited extent described in the Prospectus Supplement, credit support, as well as special hazard, bankruptcy, and fraud coverage to certain Group III Certificates. The "Prospectus Supplement" is that certain Prospectus Supplement, dated March 26, 2003 to that certain Prospectus Supplement, dated March 19, 2003, to which certain of the Group III certificates were offered. The special hazard, bankruptcy, and Fraud coverage (collectively, "Credit Enhancements") provided by the III-B certificates provide coverage to the Group III Loans, subject to the conditions and limitations to payment specified thereunder.



The Class Principal Balances of each Class of the Class IIIB1,IIIB2,IIIB3,IIIB4,IIIB5,IIIB6 Certificatesimmediately after the principal and interest distribution on 200310 are as follows:

Class			Class Principal Balance
IIIB1			$3,734,233.22
IIIB2			$1,517,041.53
IIIB3			$1,050,274.74
IIIB4			$583,409.03
IIIB5			$466,766.77
IIIB6			$466,852.62
Total			$7,818,577.92
Capitalized items used but not defined herein have the meanings ascribed to them in the Prospectus Supplement.
The amount of the special hazard coverage, bankruptcy coverage, and fraud coverage, as of the above referenced distribution date, is $2,452,017.00, $100,000.00, $4,718,093.98 respectively, and such coverages are referred to in the table above under the column "Insurance Type" as "special hazard," "bankruptcy bond," and "mortgage repurchase," respectively. However, no policy of insurance exists for any such coverage, notwithstanding the reference to "insurance."

WASHINGTON MUTUAL MSC MORT PASS THROUGH CERT SERIES 2003-MS6 8-K