Jonathon Niese was the youngest for the Mets in 2008. He was 21 years old in his rookie season.

	NAME	AGE	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Jonathon Niese J. Niese	21	2008	NYM	3	6	0	1	0	0	0	0	0	0	4	0	0	6	1	0	0	0	0	0	.167	.167	.167	.333	0	-0.9	.149	-19	-0.9
2	Nick Evans N. Evans	22	2008	NYM	50	109	18	28	10	0	2	9	7	1	24	0	0	119	44	12	0	2	2	1	.257	.303	.404	.706	12	-2.6	.301	81	-2.8
3	Eddie Kunz E. Kunz	22	2008	NYM
4	Daniel Murphy D. Murphy	23	2008	NYM	49	131	24	41	9	3	2	17	18	1	28	0	2	151	62	14	0	1	1	4	.313	.397	.473	.871	25	6.5	.381	133	6.3
5	Bobby Parnell B. Parnell	23	2008	NYM
6	Mike Pelfrey M. Pelfrey	24	2008	NYM	30	59	4	5	0	0	0	2	4	1	18	0	0	72	5	0	8	0	0	0	.085	.156	.085	.241	-3	-12	.126	-34	-12.1
7	Joe Smith J. Smith	24	2008	NYM	80	1	0	0	0	0	0	0	0	0	1	0	0	1	0	0	0	0	0	0	.000	.000	.000	.000	0	-0.3	.000	-117	-0.3
8	Argenis Reyes A. Reyes	25	2008	NYM	49	110	13	24	0	0	1	3	4	2	20	2	0	121	27	1	5	0	0	2	.218	.259	.245	.504	5	-9.6	.232	36	-9.8
9	Jose Reyes J. Reyes	25	2008	NYM	159	688	113	204	37	19	16	68	66	1	82	56	15	763	327	72	5	3	8	9	.297	.358	.475	.833	111	19.3	.359	119	18.1
10	David Wright D. Wright	25	2008	NYM	160	626	115	189	42	2	33	124	94	4	118	15	5	735	334	77	0	11	5	15	.302	.390	.534	.924	130	41.2	.396	143	40
11	Gustavo Molina G. Molina	26	2008	NYM	2	7	0	1	0	0	0	0	1	0	1	0	0	8	1	0	0	0	0	0	.143	.250	.143	.393	0	-0.8	.201	15	-0.9
12	Oliver Perez O. Perez	26	2008	NYM	32	56	2	6	1	0	0	3	4	0	23	1	0	67	7	1	7	0	0	0	.107	.167	.125	.292	-2	-10.3	.143	-23	-10.4
13	John Maine J. Maine	27	2008	NYM	26	46	3	5	0	0	0	3	6	0	23	0	0	57	5	0	5	0	0	0	.109	.212	.109	.320	-1	-7.5	.168	-7	-7.6
14	Carlos Muniz C. Muniz	27	2008	NYM
15	Angel Pagan A. Pagan	27	2008	NYM	31	91	12	25	7	1	0	13	11	0	18	4	0	105	34	8	1	2	0	0	.275	.346	.374	.720	12	-0.6	.321	94	-0.8
16	Duaner Sanchez D. Sanchez	28	2008	NYM	64	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	1	0	0	0
17	Brian Stokes B. Stokes	28	2008	NYM	24	3	0	2	0	0	0	0	0	0	1	0	0	3	2	0	0	0	0	0	.667	.667	.667	1.333	1	0.7	.597	276	0.7
18	Chris Aguila C. Aguila	29	2008	NYM	8	12	0	2	0	0	0	0	2	0	4	0	0	15	2	0	1	0	0	1	.167	.286	.167	.452	1	-1.2	.229	34	-1.3
19	Ryan Church R. Church	29	2008	NYM	90	319	54	88	14	1	12	49	33	3	83	2	3	359	140	27	1	3	3	9	.276	.346	.439	.785	47	4.2	.343	108	3.7
20	Aaron Heilman A. Heilman	29	2008	NYM	75	1	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	.000	.000	.000	.000	0	-0.3	.000	-117	-0.3
21	Johan Santana J. Santana	29	2008	NYM	32	78	5	11	5	0	0	1	3	0	24	0	0	83	16	5	2	0	0	0	.141	.173	.205	.378	-1	-10.8	.170	-5	-11
22	Tony Armas T. Armas	30	2008	NYM	3	3	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0	0	0	0	.000	.000	.000	.000	0	-0.8	.000	-117	-0.8
23	Luis Ayala L. Ayala	30	2008	NYM
24	Endy Chavez E. Chavez	30	2008	NYM	133	270	30	72	10	2	1	12	17	0	22	6	1	298	89	13	9	2	3	6	.267	.308	.330	.638	24	-11.5	.282	68	-11.9
25	Claudio Vargas C. Vargas	30	2008	NYM	10	8	1	0	0	0	0	0	0	0	6	0	0	9	0	0	1	0	0	0	.000	.000	.000	.000	-1	-2.4	.000	-117	-2.5