fewest loses by a starting pitcher in a single season with 20 games started in a season

Tony Gonsolin, Ryne Stanek and Johnny Allen are tied for the fewest losses by a starting pitcher with 20+ starts in a season, with 1 game.

Interpreted as:

fewest loses by a starting pitcher in a single season with 20 or more games started in a season

	NAME	L	GS	SEASON	TM	W	L%	G	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	H/9
1	Tony Gonsolin T. Gonsolin	1	24	2022	LAD	16	.059	24	.941	2.14	119	0	0	0	130.1	79	31	32	11	35	4	0	1	498	5	8.22	2.42	3.40	0.76	23.9	7.0	0.87	.207	2.21	5.46
2	Ryne Stanek R. Stanek	1	27	2019	TBR	0	1.000	27	.000	2.09	49	0	0	0	43.0	29	10	12	3	14	0	0	0	169	1	10.26	2.93	3.50	0.63	29.0	8.3	1.00	.252	2.51	6.07
3	Johnny Allen J. Allen	1	20	1937	CLE	15	.063	20	.938	2.64	83	14	0	0	163.2	154	48	54	3	57	4	0		682	1	4.56	3.13	1.46	0.16	12.2	8.4	1.29	.282	2.97	8.47
4	Shane McClanahan S. McClanahan	2	21	2023	TBR	11	.154	21	.846	3.29	121	0	0	0	115.0	95	42	42	15	41	0	0	0	469	1	9.47	3.21	2.95	1.17	25.8	8.7	1.18	.274	3.29	7.43
5	Michael Wacha M. Wacha	2	23	2022	BOS	11	.154	23	.846	3.32	104	1	1	0	127.1	111	47	49	18	31	4	0	0	515	4	7.35	2.19	3.35	1.27	20.2	6.0	1.12	.260	3.46	7.85
6	Cal Quantrill C. Quantrill	2	22	2021	CLE	8	.200	22	.800	3.12	99	0	0	0	121.0	104	42	49	14	35	6	0	0	495	2	7.36	2.60	2.83	1.04	20.0	7.1	1.15	.264	3.64	7.74
7	Alek Manoah A. Manoah	2	20	2021	TOR	9	.182	20	.818	3.22	127	0	0	0	111.2	77	40	44	12	40	16	0	0	459	0	10.24	3.22	3.18	0.97	27.7	8.7	1.05	.246	3.55	6.21
8	Shohei Ohtani S. Ohtani	2	23	2021	LAA	9	.182	23	.818	3.18	156	0	0	0	130.1	98	46	48	15	44	10	0	2	533	10	10.77	3.04	3.55	1.04	29.3	8.3	1.09	.269	3.31	6.77
9	Ryne Stanek R. Stanek	2	29	2018	TBR	0	1.000	29	.000	3.38	53	0	0	0	40.0	28	15	15	6	17	1	0	0	162	2	11.93	3.83	3.12	1.35	32.7	10.5	1.13	.259	3.38	6.30
10	Chad Bettis C. Bettis	2	20	2018	COL	5	.286	20	.714	5.28	76	0	0	0	109.0	109	64	65	17	45	4	0	3	470	3	6.28	3.72	1.69	1.40	16.2	9.6	1.41	.280	5.37	9.00
11	Robbie Ray R. Ray	2	24	2018	ARI	6	.250	24	.750	3.93	165	0	0	0	123.2	97	54	55	19	70	5	0	3	526	5	12.01	5.09	2.36	1.38	31.4	13.3	1.35	.292	4.00	7.06
12	Brad Peacock B. Peacock	2	21	2017	HOU	10	.167	21	.833	3.22	135	0	0	0	111.2	90	40	42	9	46	2	0	0	464	4	10.88	3.71	2.93	0.73	29.1	9.9	1.22	.298	3.39	7.25
13	Aaron Sanchez A. Sanchez	2	30	2016	TOR	15	.118	30	.882	3.00	161	0	0	0	192.0	161	64	69	15	63	5	0	0	790	5	7.55	2.95	2.56	0.70	20.4	8.0	1.17	.267	3.23	7.55
14	Rich Harden R. Harden	2	25	2008	TOT	10	.167	25	.833	2.07	181	0	0	0	148.0	96	34	38	11	61	3	0	2	595	3	11.01	3.71	2.97	0.67	30.4	10.3	1.06	.251	2.31	5.84
15	Roy Oswalt R. Oswalt	2	20	2001	HOU	12	.143	20	.857	2.82	130	3	1	0	127.2	115	40	44	13	17	5	0	1	516	0	9.16	1.20	7.65	0.92	25.2	3.3	1.03	.291	3.10	8.11
16	Cal Eldred C. Eldred	2	20	2000	CWS	10	.167	20	.833	4.58	97	2	1	0	112.0	103	57	61	12	59	5	0	0	492	4	7.79	4.74	1.64	0.96	19.7	12.0	1.45	.285	4.90	8.28
17	Tim Hudson T. Hudson	2	21	1999	OAK	11	.154	21	.846	3.23	132	1	0	0	136.1	121	49	56	8	62	4	0	2	580	6	8.71	4.09	2.13	0.53	22.8	10.7	1.34	.302	3.70	7.99
18	Randy Johnson R. Johnson	2	30	1995	SEA	18	.100	30	.900	2.48	294	6	3	0	214.1	159	59	65	12	65	6	0	1	866	5	12.35	2.73	4.52	0.50	33.9	7.5	1.05	.301	2.73	6.68
19	Greg Maddux G. Maddux	2	28	1995	ATL	19	.095	28	.905	1.63	181	10	3	0	209.2	147	38	39	8	23	4	0	3	785	1	7.77	0.99	7.87	0.34	23.1	2.9	0.81	.244	1.67	6.31
20	Jason Bere J. Bere	2	24	1994	CWS	12	.143	24	.857	3.81	127	0	0	0	141.2	119	60	65	17	80	1	0	0	608	2	8.07	5.08	1.59	1.08	20.9	13.2	1.40	.266	4.13	7.56
21	Orel Hershiser O. Hershiser	2	21	1991	LAD	7	.222	21	.778	3.46	73	0	0	0	112.0	112	43	43	3	32	5	0	6	473	2	5.87	2.57	2.28	0.24	15.4	6.8	1.29	.303	3.46	9.00
22	Bob Walk B. Walk	2	20	1991	PIT	7	.222	20	.778	3.77	65	0	0	0	107.1	93	45	52	9	33	4	0	2	451	10	5.45	2.77	1.97	0.75	14.4	7.3	1.17	.247	4.36	7.80
23	Tom Seaver T. Seaver	2	23	1981	CIN	14	.125	23	.875	2.54	87	6	1	0	166.1	120	47	51	10	66	3	0	8	671	5	4.71	3.57	1.32	0.54	13.0	9.8	1.12	.218	2.76	6.49
24	Mike Nagy M. Nagy	2	28	1969	BOS	12	.143	28	.857	3.15	80	7	1	0	188.1	175	66	80	9	99	11	0	3	829	4	3.82	4.73	0.81	0.43	9.7	11.9	1.45	.263	3.82	8.36
25	Preacher Roe P. Roe	2	25	1952	BKN	10	.167	25	.833	3.23	79	8	2	0	153.1	161	55	59	16	39	3	0		633	1	4.64	2.29	2.03	0.94	12.5	6.2	1.30	.292	3.46	9.45