Cy Young has won the most career games by a 41-year-old pitcher, with 21 wins.

Interpreted as:

most regular-season wins by a pitcher after the age 41

	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	Cy Young C. Young	21	11	.656	36	33		158	30	3	2	298.1	228		68	1	34	2	3		1,133	4	4.77	1.03	4.65	0.03	13.9	3.0	0.88	.242	2.05	6.88
2	Roger Clemens R. Clemens	19	5	.792	33	33	3.19	193	0	0	0	211.1	177	75	81	20	77	6	0	5	871	4	8.22	3.28	2.51	0.85	22.2	8.8	1.20	.273	3.45	7.54
3	Warren Spahn W. Spahn	19	13	.594	34	34	2.69	124	23	1	0	274.2	241	82	87	24	56	3	0	2	1,095	3	4.06	1.83	2.21	0.79	11.3	5.1	1.08	.244	2.85	7.90
4	Bartolo Colon B. Colon	18	11	.621	31	31	3.95	154	0	0	0	200.2	210	88	94	23	27	3	0	3	832	2	6.91	1.21	5.70	1.03	18.5	3.2	1.18	.299	4.22	9.42
5	Kenny Rogers K. Rogers	17	8	.680	34	33	3.84	99	0	0	0	204.0	195	87	97	23	62	9	1	2	849	5	4.37	2.74	1.60	1.01	11.7	7.3	1.26	.262	4.28	8.60
6	Randy Johnson R. Johnson	17	9	.654	34	34	3.64	226	4	0	0	232.2	224	94	108	31	42	12	0	2	955	3	8.74	1.62	5.38	1.20	23.7	4.4	1.14	.300	4.18	8.66
7	Grover Alexander G. Alexander	16	9	.640	34	31	3.36	59	18	1	2	243.2	262	91	106	15	37	2	2		1,007	3	2.18	1.37	1.59	0.55	5.9	3.7	1.23	.276	3.92	9.68
8	Greg Maddux G. Maddux	15	10	.600	35	35	4.00	104	1	0	0	204.2	221	91	93	16	27	5	0	3	852	4	4.57	1.19	3.85	0.70	12.2	3.2	1.21	.293	4.09	9.72
9	Don Sutton D. Sutton	15	11	.577	34	34	3.74	116	3	1	0	207.0	192	86	93	31	49	3	0	2	853	4	5.04	2.13	2.37	1.35	13.6	5.7	1.16	.246	4.04	8.35
10	Phil Niekro P. Niekro	15	18	.455	40	38	3.63	176	11	3	1	275.0	256	111	119	30	85	3	2	3	1,137	9	5.76	2.78	2.07	0.98	15.5	7.5	1.24	.268	3.89	8.38
11	Jerry Koosman J. Koosman	14	15	.483	36	34	3.25	137	3	1	0	224.0	232	81	95	8	60	3	0	5	950	6	5.50	2.41	2.28	0.32	14.4	6.3	1.30	.302	3.82	9.32
12	Ted Lyons T. Lyons	14	6	.700	20	20	2.10	50	20	1	0	180.1	167	42	52	11	26	2	0		720	3	2.50	1.30	1.92	0.55	6.9	3.6	1.07	.247	2.60	8.33
13	Tom Glavine T. Glavine	13	8	.619	34	34	4.45	89	1	1	0	200.1	219	99	102	23	64	4	0	2	855	2	4.00	2.88	1.39	1.03	10.4	7.5	1.41	.290	4.58	9.84
14	Earl Caldwell E. Caldwell	13	4	.765	39	0	2.09	40	0	0	8	90.1	60	21	28	2	29	1	37		356	5	3.99	2.89	1.38	0.20	11.2	8.1	0.99	.204	2.79	5.98
15	David Wells D. Wells	12	8	.600	29	29	4.24	105	0	0	0	176.1	202	83	86	22	16	2	0	0	738	2	5.36	0.82	6.56	1.12	14.2	2.2	1.24	.304	4.39	10.31
16	Nolan Ryan N. Ryan	12	11	.522	33	33	3.52	228	4	1	0	220.0	186	86	98	18	87	7	0	6	930	10	9.33	3.56	2.62	0.74	24.5	9.4	1.24	.285	4.01	7.61
17	Rip Sewell R. Sewell	12	3	.800	21	18	3.09	35	8	1	0	128.1	129	44	48	9	38	1	2		546	1	2.45	2.66	0.92	0.63	6.4	7.0	1.30	.259	3.37	9.05
18	Dazzy Vance D. Vance	12	11	.522	27	24	4.20	103	9	1	1	175.2	171	82	90	10	57	1	2		742	2	5.28	2.92	1.81	0.51	13.9	7.7	1.30	.282	4.61	8.76
19	Jack Quinn J. Quinn	12	13	.480	42	24	3.90	55	12	0	3	203.1	250	88	120	7	46	9	8		904	2	2.43	2.04	1.20	0.31	6.1	5.1	1.46	.309	5.31	11.07
20	Tim Wakefield T. Wakefield	11	11	.500	32	32	4.17	128	1	0	0	198.2	176	92	99	26	71	9	0	1	829	12	5.80	3.22	1.80	1.18	15.4	8.6	1.24	.252	4.48	7.97
21	Curt Davis C. Davis	11	11	.500	27	21	3.16	43	11	0	0	170.2	195	60	74	10	26	3	5		733	1	2.27	1.37	1.65	0.53	5.9	3.5	1.29	.284	3.90	10.28
22	Sad Sam Jones S. Sam Jones	11	13	.458	30	30	4.42	85	13	1	0	219.2	246	108	121	17	74	4	0		970	7	3.48	3.03	1.15	0.70	8.8	7.6	1.46	.290	4.96	10.08
23	R.A. Dickey	10	15	.400	30	29	4.46	126	0	0	0	169.2	169	84	97	28	63	6	1	0	728	5	6.68	3.34	2.00	1.49	17.3	8.7	1.37	.279	5.15	8.96
24	Charlie Hough C. Hough	10	13	.435	30	30	4.35	94	5	1	0	182.0	168	88	97	28	95	6	0	2	795	7	4.65	4.70	0.99	1.38	11.8	11.9	1.45	.245	4.80	8.31
25	Don McMahon D. McMahon	10	6	.625	61	0	4.06	71	0	0	4	82.0	73	37	40	9	37	7	26	6	356	2	7.79	4.06	1.92	0.99	19.9	10.4	1.34	.276	4.39	8.01