Ubaldo Jimenez lost the most games in 2012, with 17 games.

	NAME	L	SEASON	TM	W	L%	G	W%	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	Ubaldo Jimenez U. Jimenez	17	2012	CLE	9	.654	31	.346	31	5.40	143	0	0	0	176.2	190	106	116	25	95	8	0	3	805	16	7.28	4.84	1.51	1.27	17.8	11.8	1.61	.309	5.91	136	5.06	123	9.68	-18.2
2	Luke Hochevar L. Hochevar	16	2012	KCR	8	.667	32	.333	32	5.73	144	2	1	0	185.1	202	118	127	27	61	13	0	3	800	8	6.99	2.96	2.36	1.31	18.0	7.6	1.42	.315	6.17	139	4.62	113	9.81	-11.3
3	Tim Lincecum T. Lincecum	15	2012	SFG	10	.600	33	.400	33	5.18	190	0	0	0	186.0	183	107	111	23	90	4	0	3	825	17	9.19	4.35	2.11	1.11	23.0	10.9	1.47	.309	5.37	141	4.17	112	8.85	-10.4
4	Justin Masterson J. Masterson	15	2012	CLE	11	.577	34	.423	34	4.93	159	1	0	0	206.1	212	113	122	18	88	13	0	1	906	14	6.94	3.84	1.81	0.79	17.5	9.7	1.45	.309	5.32	125	4.15	100	9.25	-0.5
5	Henderson Alvarez III H. Alvarez III	14	2012	TOR	9	.609	31	.391	31	4.85	79	1	1	0	187.1	216	101	110	29	54	3	0	2	807	3	3.80	2.59	1.46	1.39	9.8	6.7	1.44	.291	5.28	115	5.17	123	10.38	-19.4
6	Josh Beckett J. Beckett	14	2012	TOT	7	.667	28	.333	28	4.65	132	0	0	0	170.1	174	88	91	21	52	5	0	6	730	5	6.97	2.75	2.54	1.11	18.1	7.1	1.33	.294	4.81	112	4.14	103	9.19	-2.7
7	Erik Bedard E. Bedard	14	2012	PIT	7	.667	24	.333	24	5.01	118	0	0	0	125.2	129	70	76	14	56	3	0	2	557	1	8.45	4.01	2.11	1.00	21.2	10.1	1.47	.314	5.44	131	4.07	107	9.24	-4.2
8	Bruce Chen B. Chen	14	2012	KCR	11	.560	34	.440	34	5.07	140	0	0	0	191.2	215	108	114	33	47	8	0	3	827	5	6.57	2.21	2.98	1.55	16.9	5.7	1.37	.304	5.35	123	4.72	116	10.10	-13.8
9	Josh Johnson J. Johnson	14	2012	MIA	8	.636	31	.364	31	3.81	165	0	0	0	191.1	180	81	84	14	65	4	0	7	798	5	7.76	3.06	2.54	0.66	20.7	8.1	1.28	.302	3.95	99	3.39	90	8.47	8.3
10	Jon Lester J. Lester	14	2012	BOS	9	.609	33	.391	33	4.82	166	3	0	0	205.1	216	110	117	25	68	4	0	2	876	6	7.28	2.98	2.44	1.10	18.9	7.8	1.38	.312	5.13	114	4.10	101	9.47	-1.5
11	Clayton Richard C. Richard	14	2012	SDP	14	.500	33	.500	33	3.99	107	1	1	0	218.2	228	97	110	31	42	6	0	4	910	4	4.40	1.73	2.55	1.28	11.8	4.6	1.23	.272	4.53	110	4.61	122	9.38	-21
12	Ricky Romero R. Romero	14	2012	TOR	9	.609	32	.391	32	5.77	124	1	0	0	181.0	198	116	122	21	105	10	0	1	829	8	6.17	5.22	1.18	1.04	15.0	12.7	1.67	.311	6.07	137	5.13	122	9.85	-18
13	Joe Blanton J. Blanton	13	2012	TOT	10	.565	31	.435	30	4.71	166	2	1	0	191.0	207	100	106	29	34	3	1	5	806	5	7.82	1.60	4.88	1.37	20.6	4.2	1.26	.310	4.99	121	3.90	99	9.75	1.2
14	Mark Buehrle M. Buehrle	13	2012	MIA	13	.500	31	.500	31	3.74	125	1	0	0	202.1	197	84	88	26	40	4	0	3	828	2	5.56	1.78	3.13	1.16	15.1	4.8	1.17	.270	3.91	97	4.17	110	8.76	-9.3
15	Nathan Eovaldi N. Eovaldi	13	2012	TOT	4	.765	22	.235	22	4.30	78	0	0	0	119.1	133	57	59	10	47	3	0	3	526	1	5.88	3.54	1.66	0.75	14.8	8.9	1.51	.317	4.45	112	4.13	108	10.03	-4
16	Dan Haren D. Haren	13	2012	LAA	12	.520	30	.480	30	4.33	142	1	1	0	176.2	190	85	95	28	38	3	0	3	747	5	7.23	1.94	3.74	1.43	19.0	5.1	1.29	.302	4.84	112	4.24	107	9.68	-5.9
17	Phil Hughes P. Hughes	13	2012	NYY	16	.448	32	.552	32	4.19	165	1	0	0	191.1	196	89	101	35	46	6	0	0	815	3	7.76	2.16	3.59	1.65	20.2	5.6	1.26	.286	4.75	100	4.55	106	9.22	-5.1
18	Ricky Nolasco R. Nolasco	13	2012	MIA	12	.520	31	.480	31	4.48	125	3	2	0	191.0	214	95	100	18	47	8	0	9	832	8	5.89	2.21	2.66	0.85	15.0	5.6	1.37	.309	4.71	116	3.87	102	10.08	-2
19	Bud Norris B. Norris	13	2012	HOU	7	.650	29	.350	29	4.65	165	0	0	0	168.1	165	87	90	23	66	8	0	2	733	8	8.82	3.53	2.50	1.23	22.5	9.0	1.37	.301	4.81	118	4.22	107	8.82	-5.1
20	Wandy Rodriguez W. Rodriguez	13	2012	TOT	12	.520	34	.480	33	3.76	139	0	0	0	205.2	205	86	99	21	56	3	1	4	875	5	6.08	2.45	2.48	0.92	15.9	6.4	1.27	.280	4.33	97	3.92	101	8.97	-1.1
21	Jeff Samardzija J. Samardzija	13	2012	CHC	9	.591	28	.409	28	3.81	180	1	0	0	174.2	157	74	79	20	56	4	0	2	723	10	9.27	2.89	3.21	1.03	24.9	7.7	1.22	.296	4.07	95	3.54	91	8.09	6.9
22	Anibal Sanchez A. Sanchez	13	2012	TOT	9	.591	31	.409	31	3.86	167	1	1	0	195.2	200	84	95	20	48	5	0	3	820	7	7.68	2.21	3.48	0.92	20.4	5.9	1.27	.310	4.37	97	3.52	90	9.20	8.9
23	Ervin Santana E. Santana	13	2012	LAA	9	.591	30	.409	30	5.16	133	1	1	0	178.0	165	102	109	39	61	9	0	2	764	4	6.72	3.08	2.18	1.97	17.4	8.0	1.27	.241	5.51	133	5.62	142	8.34	-34.4
24	Joe Saunders J. Saunders	13	2012	TOT	9	.591	28	.409	28	4.07	112	1	1	0	174.2	195	79	88	21	39	2	0	2	745	3	5.77	2.01	2.87	1.08	15.0	5.2	1.34	.305	4.53	99	4.07	101	10.05	-0.8
25	Adam Wainwright A. Wainwright	13	2012	STL	14	.481	32	.519	32	3.94	184	3	2	0	198.2	196	87	96	15	52	6	0	3	831	5	8.34	2.36	3.54	0.68	22.1	6.3	1.25	.315	4.35	102	3.09	80	8.88	17.1