most wins by a reliever in one year since 2015

Since 2015, Ryan Yarbrough has won the most games by a relief pitcher in a season, with 14 wins in his rookie season in 2018.

	NAME	W	SEASON	TM	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	Ryan Yarbrough R. Yarbrough	14	2018	TBR	4	.778	32	0	3.72	106	0	0	0	118.2	110	49	52	15	42	6	3	5	505	0	8.04	3.19	2.52	1.14	21.0	8.3	1.28	.283	3.94	8.34
2	Adrian Morejon A. Morejon	13	2025	SDP	6	.684	75	0	2.08	70	0	0	3	73.2	49	17	23	2	17	0	9	3	286	2	8.55	2.08	4.12	0.24	24.5	5.9	0.90	.239	2.81	5.99
3	Colin Poche C. Poche	12	2023	TBR	3	.800	66	0	2.23	61	0	0	1	60.2	42	15	17	4	24	1	6	1	246	3	9.05	3.56	2.54	0.59	24.8	9.8	1.09	.244	2.52	6.23
4	Brent Suter B. Suter	12	2021	MIL	4	.750	60	0	2.79	67	0	0	1	71.0	68	22	31	9	23	1	9	3	301	1	8.49	2.92	2.91	1.14	22.3	7.6	1.28	.294	3.93	8.62
5	John Gant J. Gant	11	2019	STL	1	.917	64	0	3.66	60	0	0	3	66.1	51	27	29	4	34	0	13	1	269	1	8.14	4.61	1.76	0.54	22.3	12.6	1.28	.275	3.93	6.92
6	Edwin Uceta E. Uceta	10	2025	TBR	3	.769	70	0	3.79	103	0	0	1	76.0	62	32	33	11	27	8	11	3	321	0	12.20	3.20	3.81	1.30	32.1	8.4	1.17	.297	3.91	7.34
7	Héctor Neris H. Neris	10	2024	TOT	5	.667	62	0	4.10	64	0	0	18	59.1	55	27	31	8	28	2	36	2	260	2	9.71	4.25	2.29	1.21	24.6	10.8	1.40	.297	4.70	8.34
8	Ryan Walker R. Walker	10	2024	SFG	4	.714	75	0	1.94	97	0	0	10	79.0	49	17	19	5	18	8	22	1	303	2	11.05	2.05	5.39	0.57	32.0	5.9	0.85	.251	2.16	5.58
9	Mike Baumann M. Baumann	10	2023	BAL	1	.909	60	0	3.76	61	0	0	0	64.2	52	27	29	7	33	2	15	2	273	7	8.49	4.59	1.85	0.97	22.3	12.1	1.31	.265	4.04	7.24
10	Adam Cimber A. Cimber	10	2022	TOR	6	.625	77	0	2.80	58	0	0	4	70.2	66	22	28	6	13	8	15	1	293	1	7.39	1.66	4.46	0.76	19.8	4.4	1.12	.288	3.57	8.41
11	Chris Stratton C. Stratton	10	2022	TOT	4	.714	59	0	4.28	60	0	0	2	61.0	70	29	33	4	25	2	23	2	270	4	8.85	3.69	2.40	0.59	22.2	9.3	1.56	.369	4.87	10.33
12	Paul Sewald P. Sewald	10	2021	SEA	3	.769	62	0	3.06	104	0	0	11	64.2	42	22	24	10	24	0	18	5	264	2	14.47	3.34	4.33	1.39	39.4	9.1	1.02	.254	3.34	5.85
13	Chad Green C. Green	10	2021	NYY	7	.588	67	0	3.12	99	0	0	6	83.2	57	29	32	14	17	0	15	2	315	5	10.65	1.83	5.82	1.51	31.4	5.4	0.88	.232	3.44	6.13
14	Alex Reyes A. Reyes	10	2021	STL	8	.556	69	0	3.24	95	0	0	29	72.1	46	26	32	9	52	2	54	1	317	10	11.82	6.47	1.83	1.12	30.0	16.4	1.35	.233	3.98	5.72
15	Brandon Workman B. Workman	10	2019	BOS	1	.909	73	0	1.88	104	0	0	16	71.2	29	15	18	1	45	2	30	4	286	4	13.06	5.65	2.31	0.13	36.4	15.7	1.03	.209	2.26	3.64
16	Andrew Miller A. Miller	10	2016	TOT	1	.909	70	0	1.45	123	0	0	12	74.1	42	12	13	8	9	2	23	0	275	1	14.89	1.09	13.67	0.97	44.7	3.3	0.69	.256	1.57	5.09
17	Brad Brach B. Brach	10	2016	BAL	4	.714	71	0	2.05	92	0	0	2	79.0	57	18	23	7	25	0	16	1	311	4	10.48	2.85	3.68	0.80	29.6	8.0	1.04	.267	2.62	6.49
18	Jeff Hoffman J. Hoffman	9	2025	TOR	7	.563	71	0	4.37	84	0	0	33	68.0	54	33	34	15	27	4	59	1	287	2	11.12	3.57	3.11	1.99	29.3	9.4	1.19	.248	4.50	7.15
19	Jared Koenig J. Koenig	9	2024	MIL	4	.692	49	0	2.73	55	0	0	1	56.0	50	17	22	4	22	4	5	4	242	0	8.84	3.54	2.50	0.64	22.7	9.1	1.29	.293	3.54	8.04
20	Cole Sands C. Sands	9	2024	MIN	1	.900	62	0	3.28	85	0	0	4	71.1	59	26	30	6	12	6	11	0	292	3	10.72	1.51	7.08	0.76	29.1	4.1	1.00	.290	3.79	7.44
21	Tanner Scott T. Scott	9	2024	TOT	6	.600	72	0	1.75	84	0	0	22	72.0	45	14	20	3	36	1	41	4	294	0	10.50	4.50	2.33	0.38	28.6	12.2	1.13	.247	2.50	5.63
22	Robert Suarez R. Suarez	9	2024	SDP	3	.750	65	0	2.77	59	0	0	36	65.0	52	20	21	7	16	0	55	1	258	1	8.17	2.22	3.69	0.97	22.9	6.2	1.05	.256	2.91	7.20
23	Alexis Díaz A. Díaz	9	2023	CIN	6	.600	71	0	3.07	86	0	0	37	67.1	44	23	30	4	36	10	51	0	286	3	11.50	4.81	2.39	0.53	30.1	12.6	1.19	.267	4.01	5.88
24	Kevin Ginkel K. Ginkel	9	2023	ARI	1	.900	60	0	2.48	70	0	0	4	65.1	41	18	24	3	23	2	19	1	254	5	9.64	3.17	3.04	0.41	27.6	9.1	0.98	.244	3.31	5.65
25	Tanner Scott T. Scott	9	2023	MIA	5	.643	74	0	2.31	104	0	0	12	78.0	53	20	22	3	24	4	26	3	307	1	12.00	2.77	4.33	0.35	33.9	7.8	0.99	.291	2.54	6.12