Between the 2010 and 2014 seasons, Tyler Clippard and Matt Belisle were tied for winning the most games by a relief pitcher, with 29 wins.

Interpreted as:

most regular-season wins by a reliever 2010 to 2014

	NAME	W	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	Tyler Clippard T. Clippard	29	21	.580	371	0	2.63	455	0	0	34	393.1	256	115	124	40	143	9	80	10	1,567	9	10.41	3.27	3.18	0.92	29.0	9.1	1.01	.235	2.84	5.86
2	Matt Belisle M. Belisle	29	31	.483	367	0	3.76	322	0	0	4	378.2	398	158	174	28	81	10	64	18	1,583	12	7.65	1.93	3.98	0.67	20.3	5.1	1.26	.324	4.14	9.46
3	Santiago Casilla S. Casilla	26	15	.634	285	0	2.10	239	0	0	54	278.2	202	65	76	16	113	13	113	17	1,134	27	7.72	3.65	2.12	0.52	21.1	10.0	1.13	.247	2.45	6.52
4	Joe Smith J. Smith	25	13	.658	342	0	2.45	252	0	0	18	311.2	234	85	94	18	108	14	78	12	1,259	10	7.28	3.12	2.33	0.52	20.0	8.6	1.10	.249	2.71	6.76
5	Brad Ziegler B. Ziegler	25	14	.641	353	0	2.72	225	0	0	15	327.2	282	99	115	14	114	11	87	26	1,337	2	6.18	3.13	1.97	0.38	16.8	8.5	1.21	.275	3.16	7.75
6	John Axford J. Axford	24	23	.511	336	0	3.40	383	0	0	115	320.2	278	121	136	31	153	7	204	12	1,385	32	10.75	4.29	2.50	0.87	27.7	11.0	1.34	.305	3.82	7.80
7	Darren O'Day D. O'Day	23	9	.719	293	0	2.25	264	0	0	6	276.1	198	69	72	31	65	23	67	9	1,095	1	8.60	2.12	4.06	1.01	24.1	5.9	0.95	.235	2.34	6.45
8	Sergio Romo S. Romo	23	18	.561	331	0	2.38	320	0	0	76	283.2	208	75	79	27	53	12	143	9	1,117	5	10.15	1.68	6.04	0.86	28.6	4.7	0.92	.257	2.51	6.60
9	Boone Logan B. Logan	21	10	.677	291	0	3.81	234	0	0	1	201.0	189	85	91	26	85	8	39	17	868	11	10.48	3.81	2.75	1.16	27.0	9.8	1.36	.317	4.07	8.46
10	Logan Ondrusek L. Ondrusek	21	11	.656	281	0	3.89	214	0	0	2	270.2	258	117	125	34	111	7	73	14	1,173	21	7.12	3.69	1.93	1.13	18.2	9.5	1.36	.278	4.16	8.58
11	Jonathan Papelbon J. Papelbon	21	18	.538	325	0	2.84	375	0	0	174	329.1	267	104	116	26	82	15	277	8	1,339	8	10.25	2.24	4.57	0.71	28.0	6.1	1.06	.287	3.17	7.30
12	Tony Watson T. Watson	20	7	.741	256	0	2.63	225	0	0	4	243.1	186	71	74	21	70	14	33	6	974	3	8.32	2.59	3.21	0.78	23.1	7.2	1.05	.256	2.74	6.88
13	Aaron Crow A. Crow	20	11	.645	254	0	3.43	208	0	0	6	233.2	210	89	98	28	99	3	73	8	980	20	8.01	3.81	2.10	1.08	21.2	10.1	1.32	.283	3.77	8.09
14	Jake McGee J. McGee	20	9	.690	258	0	2.83	271	0	0	20	222.1	165	70	71	18	64	4	62	11	890	8	10.97	2.59	4.23	0.73	30.4	7.2	1.03	.276	2.87	6.68
15	Mike Dunn M. Dunn	20	19	.513	307	0	3.30	281	0	0	4	250.2	215	92	109	22	127	6	54	17	1,090	11	10.09	4.56	2.21	0.79	25.8	11.7	1.36	.295	3.91	7.72
16	Ronald Belisario R. Belisario	20	17	.541	266	0	4.21	203	0	0	12	260.2	249	122	133	16	94	17	57	25	1,111	10	7.01	3.25	2.16	0.55	18.3	8.5	1.32	.298	4.59	8.60
17	Luke Gregerson L. Gregerson	20	23	.465	363	0	2.64	318	0	0	18	344.1	268	101	116	26	91	11	69	13	1,384	12	8.31	2.38	3.49	0.68	23.0	6.6	1.04	.258	3.03	7.00
18	Brandon League B. League	20	25	.444	330	0	3.39	221	0	0	72	329.2	322	124	150	19	112	12	176	21	1,399	28	6.03	3.06	1.97	0.52	15.8	8.0	1.32	.293	4.10	8.79
19	Francisco Rodriguez F. Rodriguez	20	18	.526	321	0	3.05	345	0	0	105	315.2	268	107	110	36	110	6	184	14	1,309	15	9.84	3.14	3.14	1.03	26.4	8.4	1.20	.286	3.14	7.64
20	David Hernandez D. Hernandez	19	15	.559	241	0	3.38	286	0	0	19	237.0	180	89	94	22	90	11	77	7	988	21	10.86	3.42	3.18	0.84	28.9	9.1	1.14	.273	3.57	6.84
21	Drew Storen D. Storen	19	11	.633	297	0	2.94	254	0	0	66	279.0	236	91	98	20	80	10	129	12	1,142	12	8.19	2.58	3.18	0.65	22.2	7.0	1.13	.278	3.16	7.61
22	Casey Janssen C. Janssen	19	7	.731	279	0	2.99	261	0	0	83	286.1	251	95	100	26	66	12	160	4	1,165	7	8.20	2.07	3.95	0.82	22.4	5.7	1.11	.281	3.14	7.89
23	Heath Bell H. Bell	19	13	.594	286	0	3.61	280	0	0	124	279.1	275	112	121	23	102	10	189	10	1,204	16	9.02	3.29	2.75	0.74	23.3	8.5	1.35	.319	3.90	8.86
24	David Robertson D. Robertson	19	18	.514	332	0	2.51	425	0	0	46	319.1	247	89	92	23	128	8	99	15	1,314	15	11.98	3.61	3.32	0.65	32.3	9.7	1.17	.307	2.59	6.96
25	Craig Stammen C. Stammen	18	13	.581	186	0	3.07	259	0	0	1	276.0	259	94	106	19	90	7	49	10	1,157	9	8.45	2.93	2.88	0.62	22.4	7.8	1.26	.307	3.46	8.45