most losses by a player after turning 40

Phil Niekro has lost the most career games by a pitcher 40 or older, with 103 games.

Interpreted as:

most regular-season losses by a player after turning 40 years old

	NAME	L	W	L%	G	W%	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	103	121	.460	300	.540	294	3.84	1,148	62	11	1	1977.0	1,950	843	955	208	789	35	4	20	8,467	65	5.23	3.59	1.46	0.95	13.6	9.3	1.39	.277	4.35	8.88
2	Jack Quinn J. Quinn	90	104	.464	368	.536	169	3.58	420	78	12	47	1566.0	1,805	623	777	52	343	44	129		6,751	20	2.41	1.97	1.22	0.30	6.2	5.1	1.37	.298	4.47	10.37
3	Charlie Hough C. Hough	88	67	.568	209	.432	207	4.06	756	29	3	0	1346.1	1,207	608	685	149	623	65	1	10	5,812	56	5.05	4.16	1.21	1.00	13.0	10.7	1.36	.251	4.58	8.07
4	Jamie Moyer J. Moyer	84	105	.444	257	.556	251	4.44	913	8	2	0	1551.1	1,645	766	817	227	441	66	2	23	6,668	13	5.30	2.56	2.07	1.32	13.7	6.6	1.34	.282	4.74	9.54
5	Nolan Ryan N. Ryan	66	71	.482	196	.518	196	3.33	1,437	19	7	0	1271.2	933	471	535	93	527	45	0	13	5,258	68	10.17	3.73	2.73	0.66	27.3	10.0	1.15	.266	3.79	6.60
6	Bartolo Colon B. Colon	64	72	.471	175	.529	168	4.28	672	5	3	0	1014.0	1,136	482	515	138	171	16	2	11	4,282	6	5.96	1.52	3.93	1.22	15.7	4.0	1.29	.304	4.57	10.08
7	Warren Spahn W. Spahn	62	75	.453	178	.547	155	3.45	501	76	12	4	1153.0	1,133	442	490	120	274	11	17	15	4,756	18	3.91	2.14	1.83	0.94	10.5	5.8	1.22	.263	3.82	8.84
8	Gaylord Perry G. Perry	59	50	.541	155	.459	153	3.82	558	29	3	0	1025.2	1,113	435	497	86	261	24	2	22	4,348	36	4.90	2.29	2.14	0.75	12.8	6.0	1.34	.300	4.36	9.77
9	Tommy John T. John	58	48	.547	172	.453	157	4.43	317	14	2	0	950.2	1,163	468	517	77	255	25	7	23	4,151	46	3.00	2.41	1.24	0.73	7.6	6.1	1.49	.312	4.89	11.01
10	Red Faber R. Faber	56	38	.596	186	.404	87	3.78	232	32	2	12	816.2	890	343	430	33	240	19	68		3,545	11	2.56	2.64	0.97	0.36	6.5	6.8	1.38	.284	4.74	9.81
11	Randy Johnson R. Johnson	52	75	.409	167	.591	162	3.83	1,030	13	3	0	1034.0	929	440	492	130	242	45	2	15	4,249	17	8.97	2.11	4.26	1.13	24.2	5.7	1.13	.285	4.28	8.09
12	Tim Wakefield T. Wakefield	49	49	.500	151	.500	128	4.83	486	4	0	0	814.2	826	437	480	108	265	42	16	5	3,510	53	5.37	2.93	1.83	1.19	13.8	7.5	1.34	.275	5.30	9.13
13	Cy Young C. Young	45	54	.455	110	.545	105	0.01	383	86	9	2	882.0	782		315	11	147	18	4		3,465	23	3.91	1.50	2.61	0.11	11.1	4.2	1.05	.265	3.21	7.98
14	Hoyt Wilhelm H. Wilhelm	41	52	.441	459	.559	2	2.11	610	0	0	118	794.0	551	186	226	46	231	16	312	30	3,131	35	6.91	2.62	2.64	0.52	19.5	7.4	0.98	.227	2.56	6.25
15	Greg Maddux G. Maddux	38	35	.521	99	.479	99	4.24	311	1	0	0	589.2	637	278	304	54	88	12	0	15	2,450	7	4.75	1.34	3.53	0.82	12.7	3.6	1.23	.294	4.64	9.72
16	Don Sutton D. Sutton	38	44	.463	119	.537	118	4.06	366	5	2	0	712.0	703	321	339	101	179	11	0	8	2,971	19	4.63	2.26	2.04	1.28	12.3	6.0	1.24	.260	4.29	8.89
17	Joe Niekro J. Niekro	37	28	.569	92	.431	88	4.66	271	5	1	0	509.2	521	264	306	56	242	16	2	9	2,267	46	4.79	4.27	1.12	0.99	12.0	10.7	1.50	.276	5.40	9.20
18	Steve Carlton S. Carlton	37	16	.698	84	.302	70	5.21	264	3	0	1	430.0	465	249	293	60	230	5	6	13	1,940	17	5.53	4.81	1.15	1.26	13.6	11.9	1.62	.293	6.13	9.73
19	Sad Sam Jones S. Sam Jones	37	29	.561	85	.439	80	4.24	179	33	3	0	567.0	640	267	324	40	205	8	4		2,519	14	2.84	3.25	0.87	0.63	7.1	8.1	1.49	.287	5.14	10.16
20	R.A. Dickey	36	31	.537	94	.463	93	4.19	388	2	0	0	574.0	557	267	293	79	191	27	1	4	2,427	27	6.08	2.99	2.03	1.24	16.0	7.9	1.30	.274	4.59	8.73
21	Roger Clemens R. Clemens	36	66	.353	145	.647	144	3.12	829	2	1	0	911.0	774	316	349	74	281	26	0	14	3,736	32	8.19	2.78	2.95	0.73	22.2	7.5	1.16	.277	3.45	7.65
22	David Wells D. Wells	35	48	.422	125	.578	124	4.50	392	4	0	0	758.0	895	379	396	94	112	18	0	6	3,214	9	4.65	1.33	3.50	1.12	12.2	3.5	1.33	.308	4.70	10.63
23	Johnny Niggeling J. Niggeling	34	27	.557	79	.443	76	2.86	293	36	7	0	576.0	488	183	223	19	236	12	2		2,420	15	4.58	3.69	1.24	0.30	12.1	9.8	1.26	.252	3.48	7.62
24	Kenny Rogers K. Rogers	33	43	.434	105	.566	104	4.29	304	1	1	0	636.0	677	303	337	68	211	27	1	6	2,734	10	4.30	2.99	1.44	0.96	11.1	7.7	1.40	.287	4.77	9.58
25	Rich Hill R. Hill	32	25	.561	102	.439	92	4.39	424	0	0	0	471.2	456	230	250	63	170	29	4	0	2,018	6	8.09	3.24	2.49	1.20	21.0	8.4	1.33	.295	4.77	8.70