Since 1981, Mike Mussina has won the most games for the Orioles, with 147 wins.

Interpreted as:

most regular-season wins by orioles pitcher since 1981

	NAME	W	L	W%	G	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Mike Mussina M. Mussina	147	81	.645	288	288	3.53	1,535	45	15	0	2009.2	1,895	789	836	210	467	22	0	15	8,201	39	6.87	2.09	3.29	0.94	18.7	5.7	1.18	.282	3.74	77	3.62	79	8.49	214.8
2	Scott McGregor S. McGregor	87	75	.537	226	211	4.28	549	50	13	0	1352.1	1,473	643	698	173	355	14	7	18	5,760	17	3.65	2.36	1.55	1.15	9.5	6.2	1.35	.278	4.65	107	4.39	108	9.80	-48.3
3	Scott Erickson S. Erickson	79	68	.537	200	197	4.73	699	37	10	0	1287.2	1,438	677	726	128	446	54	1	19	5,598	36	4.89	3.12	1.57	0.89	12.5	8.0	1.46	.307	5.07	102	4.48	96	10.05	28
4	Mike Boddicker M. Boddicker	79	72	.523	189	179	3.72	832	53	13	0	1266.1	1,192	523	589	125	439	39	6	24	5,316	38	5.91	3.12	1.90	0.89	15.7	8.3	1.29	.275	4.19	91	3.86	93	8.47	40.6
5	Chris Tillman C. Tillman	74	60	.552	210	205	4.57	847	2	1	0	1145.0	1,142	582	614	164	436	33	1	7	4,908	56	6.66	3.43	1.94	1.29	17.3	8.9	1.38	.285	4.83	110	4.71	111	8.98	-59.2
6	Sidney Ponson S. Ponson	73	85	.462	223	212	4.86	836	28	4	1	1375.1	1,529	743	790	180	465	28	5	11	5,950	42	5.47	3.04	1.80	1.18	14.1	7.8	1.45	.304	5.17	108	4.62	100	10.01	-1
7	Mike Flanagan M. Flanagan	65	63	.508	276	169	4.02	600	34	6	3	1189.2	1,205	532	583	116	403	20	40	25	5,055	42	4.54	3.05	1.49	0.88	11.9	8.0	1.35	.278	4.41	101	4.07	100	9.12	1.8
8	Storm Davis S. Davis	61	43	.587	202	123	3.63	539	27	4	5	944.1	898	381	413	61	318	10	36	27	3,945	26	5.14	3.03	1.69	0.58	13.7	8.1	1.29	.277	3.94	91	3.48	85	8.56	62.6
9	Rodrigo Lopez R. Lopez	60	58	.508	167	141	4.72	614	5	2	0	912.2	990	479	510	128	281	28	5	15	3,951	19	6.05	2.77	2.19	1.26	15.5	7.1	1.39	.297	5.03	107	4.53	100	9.76	1.9
10	Ben McDonald B. McDonald	58	53	.523	155	142	3.89	638	21	6	0	937.0	838	405	434	100	334	20	5	16	3,906	26	6.13	3.21	1.91	0.96	16.3	8.6	1.25	.262	4.17	92	4.08	96	8.05	19.1
11	Dennis Martinez D. Martinez	56	53	.514	168	139	4.59	417	28	5	0	912.1	1,003	465	511	116	296	25	9	8	3,955	27	4.11	2.92	1.41	1.14	10.5	7.5	1.42	.286	5.04	117	4.49	112	9.89	-49.2
12	Daniel Cabrera D. Cabrera	48	59	.449	147	146	5.05	651	6	2	1	841.1	825	472	501	88	478	51	1	16	3,783	60	6.96	5.11	1.36	0.94	17.2	12.6	1.55	.293	5.36	113	4.81	106	8.83	-22
13	Jeremy Guthrie J. Guthrie	47	65	.420	161	153	4.12	602	4	0	0	983.1	971	450	486	133	281	45	4	11	4,154	13	5.51	2.57	2.14	1.22	14.5	6.8	1.27	.271	4.45	94	4.63	105	8.89	-19.7
14	Wei-Yin Chen W. Chen	46	32	.590	117	117	3.72	547	0	0	0	706.2	713	292	314	97	172	15	0	4	2,954	10	6.97	2.19	3.18	1.24	18.5	5.8	1.25	.290	4.00	92	4.13	100	9.08	0
15	Mark Williamson M. Williamson	46	35	.568	365	15	3.86	397	2	0	21	689.2	701	296	321	62	226	9	142	51	2,927	19	5.18	2.95	1.76	0.81	13.6	7.7	1.34	.286	4.19	93	3.90	94	9.15	20.8
16	Arthur Rhodes A. Rhodes	43	36	.544	238	61	4.86	579	5	3	9	622.1	575	336	350	79	316	9	35	21	2,696	19	8.37	4.57	1.83	1.14	21.5	11.7	1.43	.290	5.06	109	4.39	98	8.32	7.8
17	Erik Bedard E. Bedard	40	34	.541	114	111	3.83	639	1	1	0	658.0	627	280	308	58	254	22	0	2	2,820	20	8.74	3.47	2.52	0.79	22.7	9.0	1.34	.308	4.21	85	3.58	78	8.58	72.3
18	Kevin Gausman K. Gausman	39	51	.433	150	127	4.22	697	1	0	0	763.2	801	358	371	110	230	18	4	4	3,254	42	8.21	2.71	3.03	1.30	21.4	7.1	1.35	.314	4.37	100	4.16	96	9.44	13.1
19	Miguel Gonzalez M. Gonzalez	39	33	.542	101	95	3.82	417	1	1	0	580.1	555	246	261	86	190	24	1	8	2,439	15	6.47	2.95	2.19	1.33	17.1	7.8	1.28	.272	4.05	94	4.69	115	8.61	-36.2
20	Dean Kremer D. Kremer	38	37	.507	114	112	4.28	524	1	1	0	608.1	593	289	314	87	204	15	0	0	2,583	21	7.75	3.02	2.57	1.29	20.3	7.9	1.31	.289	4.65	105	4.38	106	8.77	-18.6
21	Dylan Bundy D. Bundy	38	45	.458	127	103	4.67	602	2	1	0	614.1	611	319	345	114	206	25	8	5	2,628	13	8.82	3.02	2.92	1.67	22.9	7.8	1.33	.296	5.05	106	4.74	104	8.95	-11.6
22	Bob Milacki B. Milacki	37	37	.500	121	109	4.19	350	8	5	1	703.0	700	327	344	73	255	5	3	11	2,990	11	4.48	3.26	1.37	0.93	11.7	8.5	1.36	.272	4.40	107	4.26	109	8.96	-26.3
23	Jeff Ballard J. Ballard	36	51	.414	144	113	4.63	217	10	2	0	695.1	812	358	408	84	204	15	7	16	3,011	10	2.81	2.64	1.06	1.09	7.2	6.8	1.46	.292	5.28	117	4.68	118	10.51	-55
24	Sammy Stewart S. Stewart	35	32	.522	241	17	3.45	354	1	1	38	618.1	565	237	263	46	299	8	130	28	2,645	23	5.15	4.35	1.18	0.67	13.4	11.3	1.40	.268	3.83	88	4.01	100	8.22	-0.7
25	Jason Johnson J. Johnson	34	53	.391	133	120	4.84	479	3	0	0	740.0	790	398	446	106	314	36	3	15	3,291	28	5.83	3.82	1.53	1.29	14.6	9.5	1.49	.290	5.42	108	5.03	110	9.61	-36.8