Wilson Heredia had his best win percentage in a season in 1997, at 1.000.

	NAME	W%	SEASON	TM	W	L	G	GS	ERA	SO	CG	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	Wilson Heredia W. Heredia	1.000	1997	TEX	1	0	10	0	3.20	8	0	0	19.2	14	7	9	2	16	0	3	0	89	0	3.66	7.32	0.50	0.92	9.0	18.0	1.53	.190	4.12	67	6.05	131	6.41	-3
2	Felix Heredia F. Heredia	.750	1999	CHC	3	1	69	0	4.85	50	0	1	52.0	56	28	35	7	25	1	15	2	237	2	8.65	4.33	2.00	1.21	21.1	10.5	1.56	.318	6.06	106	4.45	95	9.69	1.2
3	Felix Heredia F. Heredia	.700	2000	CHC	7	3	74	0	4.76	52	0	2	58.2	46	31	31	6	33	2	24	4	250	5	7.98	5.06	1.58	0.92	20.8	13.2	1.35	.255	4.76	105	4.47	95	7.06	1.5
4	Gil Heredia G. Heredia	.667	1994	MON	6	3	39	3	3.46	62	0	0	75.1	85	29	34	7	13	2	8	3	325	4	7.41	1.55	4.77	0.84	19.1	4.0	1.30	.324	4.06	81	3.28	78	10.15	8
5	Gil Heredia G. Heredia	.667	1993	MON	4	2	20	9	3.92	40	1	2	57.1	66	25	28	4	14	2	2	2	246	0	6.28	2.20	2.86	0.63	16.3	5.7	1.40	.333	4.40	98	3.33	84	10.36	4.1
6	Felix Heredia F. Heredia	.625	2003	TOT	5	3	69	0	2.69	45	0	1	87.0	74	26	32	10	33	2	22	7	365	5	4.66	3.41	1.36	1.03	12.3	9.0	1.23	.233	3.31	62	4.69	105	7.66	-2
7	Felix Heredia F. Heredia	.625	1997	FLA	5	3	56	0	4.29	54	0	0	56.2	53	27	30	3	30	5	10	1	259	2	8.58	4.76	1.80	0.48	20.8	11.6	1.46	.299	4.76	106	3.74	90	8.42	2.6
8	Gil Heredia G. Heredia	.619	1999	OAK	13	8	33	33	4.81	117	1	0	200.1	228	107	119	22	34	8	0	4	852	2	5.26	1.53	3.44	0.99	13.7	4.0	1.31	.307	5.35	101	4.01	84	10.24	17.4
9	Gil Heredia G. Heredia	.577	2000	OAK	15	11	32	32	4.12	101	2	0	198.2	214	91	106	24	66	4	0	5	860	3	4.58	2.99	1.53	1.09	11.7	7.7	1.41	.286	4.80	86	4.74	99	9.69	0.8
10	Felix Heredia F. Heredia	.500	2004	NYY	1	1	47	0	6.28	25	0	0	38.2	44	27	28	5	20	2	9	0	182	1	5.82	4.66	1.25	1.16	13.7	11.0	1.66	.300	6.52	139	5.13	115	10.24	-2.9
11	Felix Heredia F. Heredia	.500	2001	CHC	2	2	48	0	6.17	28	0	0	35.0	45	24	27	6	16	2	9	1	165	3	7.20	4.11	1.75	1.54	17.0	9.7	1.74	.345	6.94	145	5.21	119	11.57	-3.2
12	Felix Heredia F. Heredia	.500	1998	TOT	3	3	71	2	5.06	54	0	2	58.2	57	33	39	2	38	1	18	3	268	6	8.28	5.83	1.42	0.31	20.1	14.2	1.62	.318	5.98	123	3.73	88	8.74	3.4
13	Gil Heredia G. Heredia	.500	1998	OAK	3	3	8	6	2.74	27	0	0	42.2	43	13	14	4	3	3	2	0	175	0	5.70	0.63	9.00	0.84	15.4	1.7	1.08	.283	2.95	60	3.51	78	9.07	4.8
14	Felix Heredia F. Heredia	.500	1996	FLA	1	1	21	0	4.32	10	0	0	16.2	21	8	8	1	10	0	5	1	78	2	5.40	5.40	1.00	0.54	12.8	12.8	1.86	.351	4.32	105	4.54	107	11.34	-0.6
15	Gil Heredia G. Heredia	.467	2001	OAK	7	8	24	18	5.58	48	0	0	109.2	144	68	75	27	29	2	2	3	493	1	3.94	2.38	1.66	2.22	9.7	5.9	1.58	.302	6.16	127	6.22	140	11.82	-21.8
16	Gil Heredia G. Heredia	.455	1995	MON	5	6	40	18	4.31	74	0	1	119.0	137	57	60	7	21	5	5	1	509	1	5.60	1.59	3.52	0.53	14.5	4.1	1.33	.323	4.54	102	3.27	78	10.36	11.9
17	Gil Heredia G. Heredia	.400	1992	TOT	2	3	20	5	4.23	22	0	0	44.2	44	21	23	4	20	1	4	1	187	1	4.43	4.03	1.10	0.81	11.8	10.7	1.43	.286	4.63	124	4.36	125	8.87	-4.4
18	Felix Heredia F. Heredia	.333	2002	TOR	1	2	53	0	3.61	31	0	0	52.1	51	21	29	5	26	2	15	3	232	5	5.33	4.47	1.19	0.86	13.4	11.2	1.47	.274	4.99	79	4.62	104	8.77	-0.9
19	Gil Heredia G. Heredia	.286	1996	TEX	2	5	44	0	5.89	43	0	1	73.1	91	48	50	12	14	1	21	2	320	2	5.28	1.72	3.07	1.47	13.4	4.4	1.43	.316	6.14	115	4.73	96	11.17	1.5