Between the 2008 and 2015 seasons, Matt Harvey had the best ERA for the Mets, with an ERA of 2.53.

Interpreted as:

best mets with a minimum of 0.5 IP per team game pitchers in 2008 to 2015

	NAME	ERA	G	W	L	W%	GS	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	Matt Harvey M. Harvey	2.53	65	25	18	.581	65	449	1	1	0	427.0	333	120	127	30	94	12	0	3	1,690	9	9.46	1.98	4.78	0.63	26.6	5.6	1.00	.274	2.68	69	2.64	69	7.02	56.4
2	Jacob deGrom J. deGrom	2.61	52	23	14	.622	52	349	0	0	0	331.1	266	96	103	23	81	3	0	4	1,316	7	9.48	2.20	4.31	0.62	26.5	6.2	1.05	.283	2.80	72	2.68	71	7.23	40.9
3	R.A. Dickey	2.95	94	39	28	.582	91	468	8	4	0	616.2	559	202	225	55	150	22	1	7	2,516	24	6.83	2.19	3.12	0.80	18.6	6.0	1.15	.277	3.28	78	3.54	92	8.16	21.8
4	Johan Santana J. Santana	3.18	109	46	34	.575	109	607	9	6	0	717.0	658	253	273	76	203	9	0	11	2,981	13	7.62	2.55	2.99	0.95	20.4	6.8	1.20	.279	3.43	80	3.67	90	8.26	33.1
5	Noah Syndergaard N. Syndergaard	3.24	24	9	7	.563	24	166	0	0	0	150.0	126	54	60	19	31	3	0	2	603	6	9.96	1.86	5.35	1.14	27.5	5.1	1.05	.279	3.60	87	3.24	84	7.56	10.6
6	Zack Wheeler Z. Wheeler	3.50	49	18	16	.529	49	271	1	1	0	285.1	257	111	126	24	125	15	0	5	1,225	15	8.55	3.94	2.17	0.76	22.1	10.2	1.34	.295	3.97	100	3.76	101	8.11	-1.6
7	Hisanori Takahashi H. Takahashi	3.61	53	10	6	.625	12	114	0	0	8	122.0	116	49	51	13	43	0	21	7	516	1	8.41	3.17	2.65	0.96	22.1	8.3	1.30	.298	3.76	93	3.65	93	8.56	3.6
8	Jonathon Niese J. Niese	3.91	182	61	61	.500	177	826	3	2	0	1068.1	1,134	464	526	106	320	38	1	12	4,608	25	6.96	2.70	2.58	0.89	17.9	6.9	1.36	.310	4.43	106	3.83	100	9.55	0
9	Dillon Gee D. Gee	4.03	114	40	37	.519	110	489	3	0	0	679.1	674	304	325	79	216	33	1	9	2,899	13	6.48	2.86	2.26	1.05	16.9	7.5	1.31	.286	4.31	111	4.24	112	8.93	-34.9
10	Bartolo Colon B. Colon	4.13	64	29	26	.527	62	287	1	1	0	397.0	435	182	191	47	54	9	1	8	1,661	2	6.51	1.22	5.31	1.07	17.3	3.3	1.23	.307	4.33	115	3.70	98	9.86	3.7
11	Mike Pelfrey M. Pelfrey	4.22	134	45	45	.500	132	448	4	0	1	802.1	879	376	402	63	267	33	1	21	3,490	7	5.03	3.00	1.68	0.71	12.8	7.7	1.43	.305	4.51	107	4.10	102	9.86	-8.2
12	Chris Capuano C. Capuano	4.55	33	11	12	.478	31	168	1	1	0	186.0	198	94	99	27	53	5	0	5	802	4	8.13	2.56	3.17	1.31	20.9	6.6	1.35	.311	4.79	123	4.03	107	9.58	-5.8
13	John Maine J. Maine	4.55	49	18	17	.514	49	216	0	0	0	261.0	236	132	141	32	130	10	0	5	1,147	18	7.45	4.48	1.66	1.10	18.8	11.3	1.40	.269	4.86	112	4.65	112	8.14	-14.2
14	Jeremy Hefner J. Hefner	4.65	50	8	15	.348	36	161	0	0	0	224.1	242	116	130	29	55	7	6	5	964	8	6.46	2.21	2.93	1.16	16.7	5.7	1.32	.299	5.22	128	4.14	109	9.71	-7.9
15	Tim Redding T. Redding	5.10	30	3	6	.333	17	76	0	0	0	120.0	122	68	72	18	50	2	2	5	525	4	5.70	3.75	1.52	1.35	14.5	9.5	1.43	.274	5.40	125	5.07	122	9.15	-12.7
16	Oliver Perez O. Perez	5.17	65	13	16	.448	55	279	0	0	0	306.1	290	176	188	45	205	19	4	9	1,405	15	8.20	6.02	1.36	1.32	19.9	14.6	1.62	.286	5.52	127	5.39	129	8.52	-41.8
17	Livan Hernandez L. Hernandez	5.47	23	7	8	.467	23	75	1	0	0	135.0	164	82	83	16	51	1	0	3	593	1	5.00	3.40	1.47	1.07	12.6	8.6	1.59	.329	5.53	135	4.67	113	10.93	-8.2
18	Pedro Martinez P. Martinez	5.61	20	5	6	.455	20	87	0	0	0	109.0	127	68	70	19	44	6	0	3	493	2	7.18	3.63	1.98	1.57	17.6	8.9	1.57	.320	5.78	135	5.17	121	10.49	-11