Tommy John was the oldest in 1988. He was 45 years old.

	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	Tommy John T. John	45	1988	NYY
2	Steve Carlton S. Carlton	43	1988	MIN
3	Graig Nettles G. Nettles	43	1988	MON	80	93	5	16	4	0	1	14	9	0	19	0	0	104	23	5	0	2	2	4	.172	.240	.247	.488	4	-7.4	.218	34	-7.5
4	Joe Niekro J. Niekro	43	1988	MIN
5	Don Sutton D. Sutton	43	1988	LAD	16	23	1	2	0	0	0	1	1	0	6	0	0	30	2	0	6	0	0	0	.087	.125	.087	.212	-1	-4.7	.105	-40	-4.6
6	Darrell Evans D. Evans	41	1988	DET	144	437	48	91	9	0	22	64	84	1	89	1	4	522	166	31	0	0	4	14	.208	.337	.380	.717	64	6.7	.329	108	4.9
7	Nolan Ryan N. Ryan	41	1988	HOU	33	70	1	4	0	0	0	2	4	0	34	0	0	81	4	0	7	0	0	1	.057	.108	.057	.165	-5	-13.8	.087	-53	-13.5
8	Kent Tekulve K. Tekulve	41	1988	PHI	70	2	0	0	0	0	0	0	0	0	2	0	0	2	0	0	0	0	0	0	.000	.000	.000	.000	0	-0.5	.000	-119	-0.5
9	Bob Boone B. Boone	40	1988	CAL	122	352	38	104	17	0	5	39	29	2	26	2	2	392	136	22	9	0	2	9	.295	.352	.386	.739	50	6.8	.335	111	5
10	Dave Concepcion D. Concepcion	40	1988	CIN	84	197	11	39	9	0	0	8	18	0	23	3	2	216	48	9	1	0	5	4	.198	.265	.244	.509	10	-13.6	.228	39	-14.2
11	Jose Cruz J. Cruz	40	1988	NYY	38	80	9	16	2	0	1	7	8	0	8	0	1	88	21	3	0	0	1	2	.200	.273	.263	.535	5	-4.4	.246	51	-5
12	Carlton Fisk C. Fisk	40	1988	CWS	76	253	37	70	8	1	19	50	37	5	40	0	0	298	137	28	1	2	9	6	.277	.377	.542	.919	52	19.3	.397	150	17.3
13	Gene Garber G. Garber	40	1988	KCR
14	Charlie Hough C. Hough	40	1988	TEX
15	Don Baylor D. Baylor	39	1988	OAK	92	264	28	58	7	0	7	34	34	12	44	0	1	313	86	14	0	3	2	7	.220	.332	.326	.658	33	-1.3	.306	96	-1.4
16	Chris Chambliss C. Chambliss	39	1988	NYY	1	1	0	0	0	0	0	0	0	0	1	0	0	1	0	0	0	0	0	0	.000	.000	.000	.000	0	-0.2	.000	-110	-0.2
17	Phil Garner P. Garner	39	1988	SFG	15	13	0	2	0	0	0	1	1	0	3	0	1	14	2	0	0	0	0	0	.154	.214	.154	.368	0	-1.4	.179	11	-1.4
18	Rick Reuschel R. Reuschel	39	1988	SFG	36	73	4	8	1	0	0	3	2	0	25	0	1	94	9	1	19	0	0	1	.110	.133	.123	.257	-3	-13.6	.121	-30	-13.3
19	Jerry Reuss J. Reuss	39	1988	CWS
20	Doug Bair D. Bair	38	1988	TOR
21	Juan Beniquez J. Beniquez	38	1988	TOR	27	58	9	17	2	0	1	8	8	0	6	0	0	68	22	3	1	1	0	4	.293	.373	.379	.752	9	1.6	.344	114	1.1
22	Bill Buckner B. Buckner	38	1988	TOT	108	285	19	71	14	0	3	43	17	0	19	5	1	311	94	17	4	5	5	8	.249	.287	.330	.616	24	-9.5	.272	68	-11.4
23	Rick Dempsey R. Dempsey	38	1988	LAD	77	167	25	42	13	0	7	30	25	0	44	1	0	198	76	20	0	6	0	4	.251	.338	.455	.793	27	5.8	.351	132	6.8
24	Jim Dwyer J. Dwyer	38	1988	TOT	55	94	9	24	1	0	2	18	25	1	19	0	0	122	31	3	0	2	4	1	.255	.410	.330	.740	16	2.5	.340	111	1.5
25	Bob Forsch B. Forsch	38	1988	TOT	37	32	3	8	1	0	0	5	1	0	7	1	0	39	9	1	6	0	0	0	.250	.273	.281	.554	3	-1.7	.253	59	-1.7