players with most pitching wins with 0 pitching losses in a single season from 2000 to 2021

Between the 2000 and 2021 seasons, Aaron Small had the most wins in wins in a season, with 10 wins in 2005.

	NAME	W	L	SEASON	TM	W%	L%	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	ERA-	FIP	FIP-	H/9	PRAA
1	Aaron Small A. Small	10	0	2005	NYY	1.000	.000	15	9	3.20	37	1	1	0	76.0	71	27	27	4	24	5	1	0	316	0	4.38	2.84	1.54	0.47	11.7	7.6	1.25	.272	3.20	74	3.86	89	8.41	3.8
2	Nate Jones N. Jones	8	0	2012	CWS	1.000	.000	65	0	2.39	65	0	0	0	71.2	67	19	19	4	32	1	11	3	301	5	8.16	4.02	2.03	0.50	21.6	10.6	1.38	.317	2.39	56	3.38	79	8.41	7.1
3	Micah Owings M. Owings	8	0	2011	ARI	1.000	.000	33	4	3.57	44	0	0	0	63.0	56	25	27	8	23	2	2	0	263	3	6.29	3.29	1.91	1.14	16.7	8.7	1.25	.258	3.86	90	4.46	115	8.00	-4
4	Rheal Cormier R. Cormier	8	0	2003	PHI	1.000	.000	65	0	1.70	67	0	0	1	84.2	54	16	18	4	25	1	21	2	327	0	7.12	2.66	2.68	0.43	20.5	7.6	0.93	.217	1.91	41	2.98	70	5.74	12.1
5	Arthur Rhodes A. Rhodes	8	0	2001	SEA	1.000	.000	71	0	1.72	83	0	0	3	68.0	46	13	14	5	12	1	16	0	258	3	10.99	1.59	6.92	0.66	32.2	4.7	0.85	.261	1.85	40	2.13	49	6.09	16.9
6	Caleb Thielbar C. Thielbar	7	0	2021	MIN	1.000	.000	59	0	3.23	77	0	0	0	64.0	55	23	24	8	20	3	14	1	266	3	10.83	2.81	3.85	1.13	28.9	7.5	1.17	.297	3.38	76	3.46	82	7.73	5.5
7	Max Fried M. Fried	7	0	2020	ATL	1.000	.000	11	11	2.25	50	0	0	0	56.0	42	14	14	2	19	4	0	0	224	1	8.04	3.05	2.63	0.32	22.3	8.5	1.09	.268	2.25	49	3.09	70	6.75	8.2
8	Trevor Gott T. Gott	7	0	2019	SFG	1.000	.000	50	0	4.44	57	0	0	1	52.2	41	26	26	4	17	2	6	0	214	1	9.74	2.91	3.35	0.68	26.6	7.9	1.10	.276	4.44	106	3.11	74	7.01	6.6
9	Corbin Burnes C. Burnes	7	0	2018	MIL	1.000	.000	30	0	2.61	35	0	0	1	38.0	27	11	11	4	11	3	6	2	152	2	8.29	2.61	3.18	0.95	23.0	7.2	1.00	.232	2.61	65	3.79	93	6.39	1.2
10	AJ Ramos	7	0	2014	MIA	1.000	.000	68	0	2.11	73	0	0	0	64.0	36	15	16	1	43	3	12	7	270	7	10.27	6.05	1.70	0.14	27.0	15.9	1.23	.233	2.25	59	3.21	90	5.06	2.6
11	Joe Nathan J. Nathan	7	0	2006	MIN	1.000	.000	64	0	1.58	95	0	0	36	68.1	38	12	12	3	16	1	61	4	262	3	12.51	2.11	5.94	0.40	36.3	6.1	0.79	.238	1.58	35	1.68	38	5.00	21.1
12	Aaron Loup A. Loup	6	0	2021	NYM	1.000	.000	65	2	0.95	57	0	0	0	56.2	37	6	9	1	16	4	6	0	218	0	9.05	2.54	3.56	0.16	26.1	7.3	0.94	.257	1.43	24	2.44	58	5.88	11.2
13	Phil Maton P. Maton	6	0	2021	TOT	1.000	.000	65	1	4.72	85	0	0	0	66.2	65	35	36	6	32	6	5	0	297	0	11.48	4.32	2.66	0.81	28.6	10.8	1.45	.351	4.86	111	3.49	83	8.78	5.3
14	Zack Littell Z. Littell	6	0	2019	MIN	1.000	.000	29	0	2.68	32	0	0	0	37.0	34	11	12	4	9	0	7	1	146	0	7.78	2.19	3.56	0.97	21.9	6.2	1.16	.297	2.92	58	3.61	79	8.27	3.9
15	Will Smith W. Smith	6	0	2019	SFG	1.000	.000	63	0	2.76	96	0	0	34	65.1	46	20	20	10	21	0	52	2	257	3	13.22	2.89	4.57	1.38	37.4	8.2	1.03	.277	2.76	65	3.22	77	6.34	7.4
16	Ryan Buchter R. Buchter	6	0	2018	OAK	1.000	.000	54	0	2.75	41	0	0	0	39.1	32	12	17	4	15	0	4	1	163	1	9.38	3.43	2.73	0.92	25.2	9.2	1.19	.272	3.89	67	3.54	86	7.32	2.5
17	Jerry Blevins J. Blevins	6	0	2017	NYM	1.000	.000	75	0	2.94	69	0	0	1	49.0	43	16	16	4	24	4	5	2	217	2	12.67	4.41	2.88	0.73	31.8	11.1	1.37	.336	2.94	72	3.11	74	7.90	6.2
18	Brandon Morrow B. Morrow	6	0	2017	LAD	1.000	.000	45	0	2.06	50	0	0	2	43.2	31	10	10	0	9	1	10	1	170	2	10.31	1.85	5.56	0.00	29.4	5.3	0.92	.282	2.06	50	1.55	37	6.39	13.2
19	Chien-Ming Wang C. Wang	6	0	2016	KCR	1.000	.000	38	0	4.22	30	0	0	0	53.1	60	25	27	6	18	2	24	0	231	1	5.06	3.04	1.67	1.01	13.0	7.8	1.46	.309	4.56	99	4.60	111	10.13	-2.7
20	Scott Atchison S. Atchison	6	0	2014	CLE	1.000	.000	70	0	2.75	49	0	0	2	72.0	60	22	24	4	14	0	11	4	280	1	6.13	1.75	3.50	0.50	17.5	5.0	1.03	.263	3.00	71	3.07	80	7.50	6
21	Drew Smyly D. Smyly	6	0	2013	DET	1.000	.000	63	0	2.37	81	0	0	2	76.0	62	20	20	4	17	1	9	1	303	5	9.59	2.01	4.76	0.47	26.7	5.6	1.04	.290	2.37	59	2.31	58	7.34	14
22	Robbie Ross Jr. R. Ross Jr.	6	0	2012	TEX	1.000	.000	58	0	2.22	47	0	0	0	65.0	55	16	21	3	23	2	9	3	265	1	6.51	3.18	2.04	0.42	17.7	8.7	1.20	.274	2.91	51	3.39	80	7.62	6.1
23	Casey Janssen C. Janssen	6	0	2011	TOR	1.000	.000	55	0	2.26	53	0	0	2	55.2	47	14	14	2	14	2	11	1	223	2	8.57	2.26	3.79	0.32	23.8	6.3	1.10	.296	2.26	54	2.44	59	7.60	10.2
24	Hideki Okajima H. Okajima	6	0	2009	BOS	1.000	.000	68	0	3.39	53	0	0	0	61.0	56	23	23	8	21	2	6	3	258	0	7.82	3.10	2.52	1.18	20.5	8.1	1.26	.276	3.39	73	4.19	97	8.26	0.9
25	Ruddy Lugo R. Lugo	6	0	2007	TOT	1.000	.000	38	0	5.40	34	0	0	0	48.1	48	29	29	3	37	2	14	6	228	2	6.33	6.89	0.92	0.56	14.9	16.2	1.76	.296	5.40	123	5.05	115	8.94	-3.6