David Aardsma won once in 2015.

	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	David Aardsma D. Aardsma	1	2015	ATL	1	.500	33	0	4.70	35	0	0	0	30.2	25	16	17	6	14	1	9	3	129	1	10.27	4.11	2.50	1.76	27.1	10.9	1.27	.260	4.99	7.34
2	Fernando Abad F. Abad	2	2015	OAK	2	.500	62	0	4.15	45	0	0	0	47.2	45	22	23	11	19	1	17	3	205	4	8.50	3.59	2.37	2.08	22.0	9.3	1.34	.264	4.34	8.50
3	A.J. Achter	0	2015	MIN	1	.000	11	0	6.75	14	0	0	0	13.1	12	10	10	4	6	0	4	1	58	0	9.45	4.05	2.33	2.70	24.1	10.3	1.35	.235	6.75	8.10
4	Austin Adams A. Adams	2	2015	CLE	0	1.000	28	0	3.78	23	0	0	1	33.1	37	14	15	2	13	0	9	0	149	1	6.21	3.51	1.77	0.54	15.4	8.7	1.50	.315	4.05	9.99
5	Nate Adcock N. Adcock	1	2015	CIN	2	.333	13	0	6.00	13	0	0	0	18.0	15	12	12	3	12	1	4	0	83	1	6.50	6.00	1.08	1.50	15.7	14.5	1.50	.222	6.00	7.50
6	Jeremy Affeldt J. Affeldt	2	2015	SFG	2	.500	52	0	5.86	21	0	0	0	35.1	43	23	24	6	14	2	7	2	163	1	5.35	3.57	1.50	1.53	12.9	8.6	1.61	.308	6.11	10.95
7	Andrew Albers A. Albers	0	2015	TOR	0		1	0	3.38	1	0	0	0	2.2	1	1	1	1	2	0	0	0	11	0	3.38	6.75	0.50	3.38	9.1	18.2	1.13	.000	3.38	3.38
8	Matt Albers M. Albers	2	2015	CWS	0	1.000	30	0	1.21	28	0	0	0	37.1	31	5	6	3	9	1	5	2	149	0	6.75	2.17	3.11	0.72	18.8	6.0	1.07	.259	1.45	7.47
9	Al Alburquerque A. Alburquerque	4	2015	DET	1	.800	67	0	4.21	58	0	0	0	62.0	63	29	29	4	33	1	12	3	271	5	8.42	4.79	1.76	0.58	21.4	12.2	1.55	.337	4.21	9.15
10	Scott Alexander S. Alexander	0	2015	KCR	0		4	0	4.50	3	0	0	0	6.0	5	3	3	0	3	1	3	0	25	1	4.50	4.50	1.00	0.00	12.0	12.0	1.33	.278	4.50	7.50
11	Cody Allen C. Allen	2	2015	CLE	5	.286	70	0	2.99	99	0	0	34	69.1	56	23	26	2	25	2	58	2	286	9	12.85	3.25	3.96	0.26	34.6	8.7	1.17	.342	3.38	7.27
12	Miguel Almonte M. Almonte	0	2015	KCR	2	.000	9	0	6.23	10	0	0	0	8.2	7	6	6	4	7	1	3	0	41	0	10.38	7.27	1.43	4.15	24.4	17.1	1.62	.158	6.23	7.27
13	Dario Alvarez D. Alvarez	1	2015	NYM	0	1.000	6	0	12.27	2	0	0	0	3.2	5	5	5	2	1	2	0	0	19	0	4.91	2.45	2.00	4.91	10.5	5.3	1.64	.250	12.27	12.27
14	Jose Alvarez J. Alvarez	4	2015	LAA	3	.571	64	0	3.49	59	0	0	0	67.0	58	26	29	5	23	5	18	4	283	1	7.93	3.09	2.57	0.67	20.8	8.1	1.21	.277	3.90	7.79
15	R.J. Alvarez	0	2015	OAK	0		21	0	9.90	23	0	0	0	20.0	27	22	23	7	13	0	11	1	100	5	10.35	5.85	1.77	3.15	23.0	13.0	2.00	.351	10.35	12.15
16	Alexi Amarista A. Amarista	0	2015	SDP	0		1	0	0.00	0	0	0	0	0.1	0	0	0	0	0	0	1	0	1	0	0.00	0.00		0.00	0.0	0.0	0.00	.000	0.00	0.00
17	Matt Andriese M. Andriese	1	2015	TBR	3	.250	17	0	4.75	26	0	0	2	30.1	33	16	16	4	9	1	8	1	133	1	7.71	2.67	2.89	1.19	19.5	6.8	1.38	.312	4.75	9.79
18	Elvis Araujo E. Araujo	2	2015	PHI	1	.667	40	0	3.38	34	0	0	0	34.2	29	13	17	1	19	0	5	1	151	2	8.83	4.93	1.79	0.26	22.5	12.6	1.38	.289	4.41	7.53
19	Shawn Armstrong S. Armstrong	0	2015	CLE	0		8	0	2.25	11	0	0	0	8.0	5	2	2	1	2	0	5	0	30	0	12.38	2.25	5.50	1.13	36.7	6.7	0.88	.250	2.25	5.63
20	Jonathan Aro J. Aro	0	2015	BOS	1	.000	6	0	6.97	8	0	0	0	10.1	15	8	8	2	4	0	2	0	49	0	6.97	3.48	2.00	1.74	16.3	8.2	1.84	.371	6.97	13.06
21	Scott Atchison S. Atchison	1	2015	CLE	1	.500	23	0	6.86	12	0	0	0	19.2	23	15	15	6	4	1	7	0	87	3	5.49	1.83	3.00	2.75	13.8	4.6	1.37	.266	6.86	10.53
22	Luis Avilan L. Avilan	2	2015	TOT	5	.286	73	0	4.05	49	0	0	0	53.1	48	24	24	6	15	1	9	2	220	2	8.27	2.53	3.27	1.01	22.3	6.8	1.18	.282	4.05	8.10
23	Dylan Axelrod D. Axelrod	0	2015	CIN	1	.000	6	0	7.30	12	0	0	0	12.1	11	10	13	5	8	0	3	2	59	0	8.76	5.84	1.50	3.65	20.3	13.6	1.54	.176	9.49	8.03
24	John Axford J. Axford	4	2015	COL	5	.444	60	0	4.20	62	0	0	25	55.2	56	26	27	4	32	0	43	4	250	1	10.02	5.17	1.94	0.65	24.8	12.8	1.58	.342	4.37	9.05
25	Burke Badenhop B. Badenhop	2	2015	CIN	4	.333	68	0	3.93	36	0	0	0	66.1	71	29	30	4	20	0	17	4	285	0	4.88	2.71	1.80	0.54	12.6	7.0	1.37	.298	4.07	9.63