most games started for a pitcher in a single season after 1900

Since 1901, Jack Chesbro has started the most games in a season, with 51 starts in 1904.

	NAME	GS	SEASON	TM	G	W	L	W%	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	Jack Chesbro J. Chesbro	51	1904	NYH	55	41	12	.774	1.82	239	48	6	0	454.2	338	92	128	4	88	7	3		1,720	9	4.73	1.74	2.72	0.08	13.9	5.1	0.94	.242	2.53	65	2.11	78	6.69	32.5
2	Wilbur Wood W. Wood	49	1972	CWS	49	24	17	.585	2.51	193	20	8	0	376.2	325	105	119	28	74	7	0	5	1,490	11	4.61	1.77	2.61	0.67	13.0	5.0	1.06	.250	2.84	80	2.98	91	7.77	13.1
3	Ed Walsh E. Walsh	49	1908	CWS	66	40	15	.727	1.42	269	42	11	6	464.0	343	73	111	2	56	9	16		1,755	10	5.22	1.09	4.80	0.04	15.3	3.2	0.86	.240	2.15	63	1.42	67	6.65	34.2
4	Wilbur Wood W. Wood	48	1973	CWS	49	24	20	.545	3.46	199	21	4	0	359.1	381	138	166	25	91	7	1	3	1,531	7	4.98	2.28	2.19	0.63	13.0	5.9	1.31	.294	4.16	89	3.17	82	9.54	27.9
5	Joe McGinnity J. McGinnity	48	1903	NYG	55	31	20	.608	2.43	171	44	3	2	434.0	391	117	162	4	109	19	6		1,786	5	3.55	2.26	1.57	0.08	9.6	6.1	1.15	.261	3.36	75	2.97	91	8.11	13
6	Dave Davenport D. Davenport	46	1915	SLF	55	22	18	.550	2.20	229	30	10	1	392.2	300	96	116	5	96	5	5		1,497	7	5.25	2.20	2.39	0.11	15.3	6.4	1.01	.254	2.66	70	2.18	72	6.88	37.4
7	Ed Walsh E. Walsh	46	1907	CWS	56	24	18	.571	1.60	206	37	5	4	422.1	341	75	120	3	87	8	10		1,622	14	4.39	1.85	2.37	0.06	12.7	5.4	1.01	.256	2.56	67	1.97	88	7.27	9.9
8	Christy Mathewson C. Mathewson	46	1904	NYG	48	33	12	.733	2.03	212	33	4	1	367.2	306	83	120	7	78	4	2		1,437	10	5.19	1.91	2.72	0.17	14.8	5.4	1.04	.263	2.94	75	2.18	78	7.49	25.8
9	Rube Waddell R. Waddell	46	1904	PHA	46	25	19	.568	1.62	349	39	8	0	383.0	307	69	109	5	91	14	0		1,496	8	8.20	2.14	3.84	0.12	23.3	6.1	1.04	.291	2.56	61	1.59	62	7.21	41.5
10	Vic Willis V. Willis	46	1902	BSN	51	27	20	.574	2.20	225	45	4	3	410.0	372	100	142	6	101	14	5		1,652	12	4.94	2.22	2.23	0.13	13.6	6.1	1.15	.280	3.12	76	2.60	86	8.17	21.3
11	Mickey Lolich M. Lolich	45	1971	DET	45	25	14	.641	2.92	308	29	4	0	376.0	336	122	133	36	92	7	0	2	1,538	7	7.37	2.20	3.35	0.86	20.0	6.0	1.14	.274	3.18	83	2.84	78	8.04	32.5
12	Grover Alexander G. Alexander	45	1916	PHN	48	33	12	.733	1.55	167	38	16	3	389.0	323	67	90	6	50	10	3		1,500	3	3.86	1.16	3.34	0.14	11.1	3.3	0.96	.250	2.08	58	2.12	79	7.47	25.4
13	Jack Powell J. Powell	45	1904	NYH	47	23	19	.548	2.44	202	38	3	0	390.1	340	106	154	15	92	10	2		1,546	12	4.66	2.12	2.20	0.35	13.1	6.0	1.11	.265	3.55	87	2.67	98	7.84	5.5
14	Phil Niekro P. Niekro	44	1979	ATL	44	21	20	.512	3.39	208	23	1	0	342.0	311	129	160	41	113	11	0	8	1,436	18	5.47	2.97	1.84	1.08	14.5	7.9	1.24	.254	4.21	84	4.15	101	8.18	0.1
15	George Uhle G. Uhle	44	1923	CLE	54	26	16	.619	3.77	109	30	1	5	357.2	378	150	167	8	102	12	8		1,548	3	2.74	2.57	1.07	0.20	7.0	6.6	1.34	.281	4.20	94	3.57	88	9.51	19.2
16	Grover Alexander G. Alexander	44	1917	PHN	45	30	13	.698	1.83	200	34	8	0	388.0	336	79	107	4	56	6	0		1,529	1	4.64	1.30	3.57	0.09	13.1	3.7	1.01	.263	2.48	65	1.84	69	7.79	36.4
17	Christy Mathewson C. Mathewson	44	1908	NYG	56	37	11	.771	1.43	259	34	11	5	390.2	281	62	85	5	42	3	9		1,469	2	5.97	0.97	6.17	0.12	17.6	2.9	0.83	.238	1.96	61	1.29	52	6.47	52.4
18	Joe McGinnity J. McGinnity	44	1904	NYG	51	35	8	.814	1.61	144	38	9	5	408.0	307	73	103	8	86	13	7		1,588	2	3.18	1.90	1.67	0.18	9.1	5.4	0.96	.224	2.27	59	2.70	96	6.77	5.3
19	George Mullin G. Mullin	44	1904	DET	45	17	23	.425	2.40	161	42	7	0	382.1	345	102	154	1	131	10	1		1,568	8	3.79	3.08	1.23	0.02	10.3	8.4	1.24	.272	3.63	92	2.72	108	8.12	-8.8
20	Phil Niekro P. Niekro	43	1977	ATL	44	16	20	.444	4.03	262	20	2	0	330.1	315	148	166	26	164	8	1	12	1,428	17	7.14	4.47	1.60	0.71	18.3	11.5	1.45	.299	4.52	95	3.73	88	8.58	18.1
21	Wilbur Wood W. Wood	43	1975	CWS	43	16	20	.444	4.11	140	14	2	0	291.1	309	133	148	26	92	5	0	5	1,245	6	4.32	2.84	1.52	0.80	11.2	7.4	1.38	.288	4.57	107	3.77	100	9.55	-0.3
22	Dick Rudolph D. Rudolph	43	1915	BSN	44	22	19	.537	2.37	147	30	3	1	341.1	304	90	125	4	64	6	1		1,362	6	3.88	1.69	2.30	0.11	10.8	4.7	1.08	.263	3.30	88	2.32	84	8.02	15.7
23	Cy Falkenberg C. Falkenberg	43	1914	IND	49	25	16	.610	2.22	236	33	9	3	377.1	332	93	127	5	89	5	5		1,502	9	5.63	2.12	2.65	0.12	15.7	5.9	1.12	.280	3.03	65	2.11	68	7.92	41.9
24	Eddie Plank E. Plank	43	1904	PHA	44	26	17	.605	2.17	201	37	7	0	357.1	311	86	111	2	86	19	1		1,427	6	5.06	2.17	2.34	0.05	14.1	6.0	1.11	.276	2.80	82	2.25	88	7.83	13.1
25	Vic Willis V. Willis	43	1904	BSN	43	18	25	.419	2.85	196	39	2	0	350.0	357	111	174	7	109	14	0		1,466	11	5.04	2.80	1.80	0.18	13.4	7.4	1.33	.307	4.47	106	2.61	94	9.18	6.3