Tommy John was the oldest in 1989. He was 46 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	46	1989	NYY
2	Darrell Evans D. Evans	42	1989	ATL	107	276	31	57	6	1	11	39	41	0	46	0	1	323	98	18	0	6	6	1	.207	.303	.355	.658	31	-4.4	.295	80	-7.1
3	Nolan Ryan N. Ryan	42	1989	TEX
4	Kent Tekulve K. Tekulve	42	1989	CIN	37	2	1	1	0	0	0	0	0	0	1	0	0	2	1	0	0	0	0	0	.500	.500	.500	1.000	0	0.2	.455	193	0.2
5	Bob Boone B. Boone	41	1989	KCR	131	405	33	111	13	2	1	43	49	2	37	3	2	469	131	16	8	5	4	16	.274	.351	.323	.675	50	-0.9	.311	94	-3.4
6	Carlton Fisk C. Fisk	41	1989	CWS	103	375	47	110	25	2	13	68	36	3	60	1	0	419	178	40	0	5	8	15	.293	.356	.475	.830	62	16.2	.365	129	14
7	Charlie Hough C. Hough	41	1989	TEX
8	Rick Reuschel R. Reuschel	40	1989	SFG	32	61	2	10	1	0	0	3	5	0	16	0	1	83	11	1	16	1	0	2	.164	.224	.180	.404	2	-7.4	.194	22	-7.1
9	Jerry Reuss J. Reuss	40	1989	TOT
10	Doug Bair D. Bair	39	1989	PIT	44	5	0	1	1	0	0	0	0	0	3	0	0	5	2	1	0	0	0	0	.200	.200	.400	.600	0	-0.2	.262	66	-0.2
11	Bill Buckner B. Buckner	39	1989	KCR	79	176	7	38	4	1	1	16	6	0	11	1	0	183	47	6	0	1	2	4	.216	.240	.267	.507	8	-12	.227	38	-12.9
12	Rick Dempsey R. Dempsey	39	1989	LAD	79	151	16	27	7	0	4	16	30	1	37	1	0	183	46	11	1	0	3	5	.179	.319	.305	.623	17	-3	.291	87	-2.5
13	Jim Dwyer J. Dwyer	39	1989	TOT	101	235	35	74	12	0	3	25	29	0	24	2	0	265	95	15	0	1	1	6	.315	.389	.404	.793	39	9.7	.362	125	7.5
14	Bob Forsch B. Forsch	39	1989	HOU	37	24	1	4	0	0	0	2	0	0	6	0	0	30	4	0	6	0	0	0	.167	.167	.167	.333	0	-3.7	.152	-8	-3.5
15	Ken Griffey K. Griffey	39	1989	CIN	106	236	26	62	8	3	8	30	29	1	42	4	2	266	100	19	0	0	3	2	.263	.346	.424	.770	35	6.5	.346	118	5.2
16	Mike Schmidt M. Schmidt	39	1989	PHI	42	148	19	30	7	0	6	28	21	0	17	0	1	172	55	13	0	3	4	6	.203	.297	.372	.668	16	-2.3	.295	85	-2.8
17	Chris Speier C. Speier	39	1989	SFG	28	37	7	9	4	0	0	2	5	0	9	0	0	44	13	4	2	0	0	2	.243	.333	.351	.685	5	0.1	.317	106	0.3
18	Doyle Alexander D. Alexander	38	1989	DET
19	Bert Blyleven B. Blyleven	38	1989	CAL
20	Brian Downing B. Downing	38	1989	CAL	142	544	59	154	25	2	14	59	56	6	87	0	2	610	225	41	0	4	3	6	.283	.354	.414	.768	82	15.7	.348	121	14.5
21	Dave Parker D. Parker	38	1989	OAK	144	553	56	146	27	0	22	97	38	1	91	0	0	600	239	49	0	8	13	21	.264	.308	.432	.741	70	4.5	.323	108	5.2
22	Jim Sundberg J. Sundberg	38	1989	TEX	76	147	13	29	7	1	2	8	23	0	37	0	0	178	44	10	7	1	0	3	.197	.304	.299	.603	15	-3.9	.284	75	-5
23	Manny Trillo M. Trillo	38	1989	CIN	17	39	3	8	0	0	0	0	2	1	9	0	0	42	8	0	0	0	0	0	.205	.262	.205	.467	2	-2.8	.224	34	-3
24	Frank White F. White	38	1989	KCR	135	418	34	107	22	1	2	36	30	2	52	3	2	458	137	25	5	3	0	7	.256	.307	.328	.635	42	-7.6	.291	81	-10
25	Alan Ashby A. Ashby	37	1989	HOU	22	61	4	10	1	1	0	3	7	1	8	0	0	71	13	2	1	1	0	2	.164	.257	.213	.470	3	-4.6	.227	44	-4.3