Jeff Innis appeared in the most games for the Mets in 1991, with 69 games.

	NAME	G	SEASON	TM	W	L	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	Jeff Innis J. Innis	69	1991	NYM	0	2	.000	0	2.66	47	0	0	0	84.2	66	25	30	2	23	0	29	6	336	4	5.00	2.44	2.04	0.21	14.0	6.8	1.05	.242	3.19	74	2.86	77	7.02	8
2	John Franco J. Franco	52	1991	NYM	5	9	.357	0	2.93	45	0	0	30	55.1	61	18	27	2	18	1	48	4	247	6	7.32	2.93	2.50	0.33	18.2	7.3	1.43	.326	4.39	81	2.72	73	9.92	6.1
3	Alejandro Pena A. Pena	44	1991	NYM	6	1	.857	0	2.71	49	0	0	4	63.0	63	19	20	5	19	0	24	4	261	1	7.00	2.71	2.58	0.71	18.8	7.3	1.30	.309	2.86	75	3.23	87	9.00	3.3
4	Doug Simons D. Simons	42	1991	NYM	2	3	.400	1	5.19	38	0	0	1	60.2	55	35	40	5	19	2	11	5	258	3	5.64	2.82	2.00	0.74	14.7	7.4	1.22	.258	5.93	144	3.71	100	8.16	0
5	Wally Whitehurst W. Whitehurst	36	1991	NYM	7	12	.368	20	4.18	87	0	0	1	133.1	142	62	67	12	25	4	6	3	556	3	5.87	1.69	3.48	0.81	15.6	4.5	1.25	.304	4.52	116	3.37	91	9.58	5
6	Tim Burke T. Burke	35	1991	NYM	3	3	.500	0	2.75	34	0	0	1	55.2	55	17	22	5	12	0	15	2	231	2	5.50	1.94	2.83	0.81	14.7	5.2	1.20	.278	3.56	76	3.44	93	8.89	1.6
7	Pete Schourek P. Schourek	35	1991	NYM	5	4	.556	8	4.27	67	1	1	2	86.1	82	41	49	7	43	2	7	4	385	1	6.98	4.48	1.56	0.73	17.4	11.2	1.45	.282	5.11	118	3.92	106	8.55	-2.1
8	Frank Viola F. Viola	35	1991	NYM	13	15	.464	35	3.97	132	3	0	0	231.1	259	102	112	25	54	1	0	4	980	6	5.14	2.10	2.44	0.97	13.5	5.5	1.35	.305	4.36	110	3.83	103	10.08	-3.2
9	David Cone D. Cone	34	1991	NYM	14	14	.500	34	3.29	241	5	2	0	232.2	204	85	95	13	73	5	0	2	966	17	9.32	2.82	3.30	0.50	24.9	7.6	1.19	.301	3.67	91	2.51	68	7.89	31.2
10	Dwight Gooden D. Gooden	27	1991	NYM	13	7	.650	27	3.60	150	3	1	0	190.0	185	76	80	12	56	3	0	2	789	5	7.11	2.65	2.68	0.57	19.0	7.1	1.27	.305	3.79	100	3.02	82	8.76	14.5
11	Ron Darling R. Darling	17	1991	NYM	5	6	.455	17	3.87	58	0	0	0	102.1	96	44	50	9	28	6	0	1	427	9	5.10	2.46	2.07	0.79	13.6	6.6	1.21	.267	4.40	107	3.86	104	8.44	-1.8
12	Tony Castillo T. Castillo	10	1991	NYM	1	0	1.000	3	1.90	10	0	0	0	23.2	27	5	7	1	6	0	1	1	104	0	3.80	2.28	1.67	0.38	9.6	5.8	1.39	.299	2.66	53	3.31	89	10.27	1
13	Anthony Young A. Young	10	1991	NYM	2	5	.286	8	3.10	20	0	0	0	49.1	48	17	20	4	12	1	2	1	202	1	3.65	2.19	1.67	0.73	9.9	5.9	1.22	.267	3.65	86	3.88	105	8.76	-1
14	Terry Bross T. Bross	8	1991	NYM	0	0		0	1.80	5	0	0	0	10.0	7	2	2	1	3	0	4	0	39	0	4.50	2.70	1.67	0.90	12.8	7.7	1.00	.200	1.80	50	4.05	109	6.30	-0.4
15	Sid Fernandez S. Fernandez	8	1991	NYM	1	3	.250	8	2.86	31	0	0	0	44.0	36	14	18	4	9	0	0	0	177	0	6.34	1.84	3.44	0.82	17.5	5.1	1.02	.241	3.68	79	3.24	87	7.36	2.3
16	Rich Sauveur R. Sauveur	6	1991	NYM	0	0		0	10.80	4	0	0	0	3.1	7	4	4	1	2	0	0	0	19	0	10.80	5.40	2.00	2.70	21.1	10.5	2.70	.500	10.80	299	6.15	166	18.90	-0.9
17	Blaine Beatty B. Beatty	5	1991	NYM	0	0		0	2.79	7	0	0	0	9.2	9	3	3	0	4	0	1	1	42	1	6.52	3.72	1.75	0.00	16.7	9.5	1.34	.290	2.79	77	2.64	71	8.38	1.2
18	Julio Valera J. Valera	2	1991	NYM	0	0		0	0.00	3	0	0	0	2.0	1	0	0	0	4	0	1	1	11	0	13.50	18.00	0.75	0.00	27.3	36.4	2.50	.250	0.00	0	5.85	158	4.50	-0.5