Phil Niekro has won the most career games by a pitcher older than 33, with 221 wins.

Interpreted as:

pitcher with most regular-season wins after age of 33

	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	H/9
1	Phil Niekro P. Niekro	221	190	.538	548	522	3.53	2,301	154	27	7	3735.1	3,557	1,465	1,675	337	1,405	86	17	54	15,843	138	5.54	3.39	1.64	0.81	14.5	8.9	1.33	.275	4.04	8.57
2	Jamie Moyer J. Moyer	197	130	.602	446	440	4.17	1,685	23	7	0	2796.2	2,859	1,296	1,382	368	721	114	2	38	11,834	30	5.42	2.32	2.34	1.18	14.2	6.1	1.28	.278	4.45	9.20
3	Warren Spahn W. Spahn	195	134	.593	411	360	3.21	1,290	192	30	14	2785.2	2,645	995	1,098	267	685	23	40	59	11,431	35	4.17	2.21	1.88	0.86	11.3	6.0	1.20	.259	3.55	8.55
4	Randy Johnson R. Johnson	182	98	.650	360	353	3.22	2,902	54	20	0	2424.1	2,047	868	985	268	644	112	3	26	9,870	45	10.77	2.39	4.51	0.99	29.4	6.5	1.11	.299	3.66	7.60
5	Roger Clemens R. Clemens	168	75	.691	336	335	3.17	2,171	22	10	0	2218.1	1,884	782	860	173	753	73	0	20	9,169	72	8.81	3.05	2.88	0.70	23.7	8.2	1.19	.285	3.49	7.64
6	Jack Quinn J. Quinn	168	145	.537	542	294	3.39	787	147	23	51	2623.1	2,899	987	1,216	80	576	60	162		11,173	36	2.70	1.98	1.37	0.27	7.0	5.2	1.32	.292	4.17	9.95
7	Charlie Hough C. Hough	163	167	.494	420	417	3.83	1,710	103	12	0	2858.1	2,527	1,217	1,395	309	1,180	119	2	22	12,136	122	5.38	3.72	1.45	0.97	14.1	9.7	1.30	.252	4.39	7.96
8	Gaylord Perry G. Perry	160	140	.533	373	371	3.34	1,719	153	28	0	2751.0	2,650	1,021	1,161	218	724	47	2	60	11,339	69	5.62	2.37	2.37	0.71	15.2	6.4	1.23	.282	3.80	8.67
9	Tommy John T. John	150	113	.570	366	343	3.70	853	83	16	1	2289.1	2,526	942	1,071	147	556	48	13	37	9,670	88	3.35	2.19	1.53	0.58	8.8	5.7	1.35	.295	4.21	9.93
10	Nolan Ryan N. Ryan	146	123	.543	376	376	3.21	2,605	49	17	0	2461.0	1,829	878	1,001	162	1,051	75	0	35	10,189	142	9.53	3.84	2.48	0.59	25.6	10.3	1.17	.265	3.66	6.69
11	David Wells D. Wells	145	80	.644	303	302	4.25	1,242	36	11	0	1963.1	2,174	928	988	235	336	49	0	11	8,265	34	5.69	1.54	3.70	1.08	15.0	4.1	1.28	.303	4.53	9.97
12	Eddie Plank E. Plank	144	74	.661	296	222	1.43	932	152	34	22	1888.0	1,640		626	16	490	52	61			33	4.44	2.34	1.90	0.08		6.7	1.13	.281	2.98	7.82
13	Early Wynn E. Wynn	139	105	.570	327	291	3.39	1,322	121	30	10	2107.1	1,881	794	884	186	811	36	26		8,860	23	5.65	3.46	1.63	0.79	14.9	9.2	1.28	.261	3.78	8.03
14	Grover Alexander G. Alexander	138	94	.595	288	253	3.31	492	161	13	11	2070.0	2,231	761	909	108	286	13	25		8,554	14	2.14	1.24	1.72	0.47	5.8	3.3	1.22	.277	3.95	9.70
15	Dazzy Vance D. Vance	133	103	.564	323	245	3.28	1,434	148	18	12	2100.2	2,013	766	887	101	547	46	41		8,745	22	6.14	2.34	2.62	0.43	16.4	6.3	1.22	.289	3.80	8.62
16	Greg Maddux G. Maddux	132	101	.567	305	305	3.71	1,195	16	7	0	1918.0	1,947	791	871	194	306	56	0	57	7,880	24	5.61	1.44	3.91	0.91	15.2	3.9	1.17	.286	4.09	9.14
17	Joe Niekro J. Niekro	126	107	.541	302	297	3.48	1,003	63	17	0	1977.1	1,845	765	885	136	729	39	3	27	8,341	129	4.57	3.32	1.38	0.62	12.0	8.7	1.30	.266	4.03	8.40
18	Steve Carlton S. Carlton	122	95	.562	289	275	3.50	1,666	67	17	1	1983.1	1,806	771	886	160	720	17	6	61	8,300	86	7.56	3.27	2.31	0.73	20.1	8.7	1.27	.287	4.02	8.20
19	Don Sutton D. Sutton	119	101	.541	305	302	3.57	1,196	32	9	2	1991.2	1,856	789	863	211	485	24	2	28	8,204	32	5.40	2.19	2.47	0.95	14.6	5.9	1.18	.262	3.90	8.39
20	Tom Glavine T. Glavine	118	87	.576	283	283	3.77	948	11	7	0	1753.2	1,769	734	790	178	600	30	0	59	7,431	10	4.87	3.08	1.58	0.91	12.8	8.1	1.35	.280	4.05	9.08
21	Rip Sewell R. Sewell	116	80	.592	278	203	3.39	475	116	17	11	1667.1	1,662	628	750	87	562	18	51		7,152	22	2.56	3.03	0.85	0.47	6.6	7.9	1.33	.262	4.05	8.97
22	Tim Wakefield T. Wakefield	115	108	.516	377	282	4.43	1,322	8	0	7	1932.2	1,864	952	1,067	244	659	119	35	20	8,291	96	6.16	3.07	2.01	1.14	15.9	7.9	1.31	.272	4.97	8.68
23	Kenny Rogers K. Rogers	115	82	.584	291	288	4.47	980	12	4	0	1796.2	1,977	893	978	189	593	85	1	17	7,807	32	4.91	2.97	1.65	0.95	12.6	7.6	1.43	.300	4.90	9.90
24	Dutch Leonard D. Leonard	107	101	.514	385	202	3.05	671	96	16	30	1752.1	1,745	593	737	80	409	34	120		7,330	46	3.45	2.10	1.64	0.41	9.2	5.6	1.23	.271	3.79	8.96
25	Curt Schilling C. Schilling	106	51	.675	214	192	3.50	1,377	18	5	9	1359.0	1,311	529	540	167	212	20	21	5	5,506	19	9.12	1.40	6.50	1.11	25.0	3.9	1.12	.307	3.58	8.68