Nolan Ryan fanned the most hitters in 1989, with 301 strikeouts.

	NAME	SO	SEASON	TM	G	W	L	W%	GS	ERA	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	Nolan Ryan N. Ryan	301	1989	TEX	32	16	10	.615	32	3.20	6	2	0	239.1	162	85	96	17	98	9	0	3	988	19	11.32	3.69	3.07	0.64	30.5	9.9	1.09	.258	3.61	82	2.50	65	6.09	35.1
2	Mark Langston M. Langston	235	1989	TOT	34	16	14	.533	34	2.74	8	5	0	250.0	198	76	87	16	112	4	0	6	1,037	6	8.46	4.03	2.10	0.58	22.7	10.8	1.24	.272	3.13	75	3.10	85	7.13	15.4
3	Roger Clemens R. Clemens	230	1989	BOS	35	17	11	.607	35	3.13	8	3	0	253.1	215	88	101	20	93	8	0	5	1,044	7	8.17	3.30	2.47	0.71	22.0	8.9	1.22	.281	3.59	77	3.16	83	7.64	17.9
4	Frank Viola F. Viola	211	1989	TOT	36	13	17	.433	36	3.66	9	2	0	261.0	246	106	115	22	74	4	0	4	1,082	8	7.28	2.55	2.85	0.76	19.5	6.8	1.23	.291	3.97	96	3.13	84	8.48	16.8
5	Jose DeLeon J. DeLeon	201	1989	STL	36	16	12	.571	36	3.05	5	3	0	244.2	173	83	96	16	80	6	0	5	972	2	7.39	2.94	2.51	0.59	20.7	8.2	1.03	.235	3.53	87	3.02	85	6.36	14.8
6	Tim Belcher T. Belcher	200	1989	LAD	39	15	12	.556	30	2.82	10	8	1	230.0	182	72	81	20	80	7	6	5	937	7	7.83	3.13	2.50	0.78	21.3	8.5	1.14	.257	3.17	83	3.28	93	7.12	6.1
7	Sid Fernandez S. Fernandez	198	1989	NYM	35	14	5	.737	32	2.83	6	2	0	219.1	157	69	73	21	75	6	0	3	883	1	8.12	3.08	2.64	0.86	22.4	8.5	1.06	.233	3.00	84	3.30	94	6.44	5.3
8	Bret Saberhagen B. Saberhagen	193	1989	KCR	36	23	6	.793	35	2.16	12	4	0	262.1	209	63	74	13	43	2	0	6	1,021	8	6.62	1.48	4.49	0.45	18.9	4.2	0.96	.255	2.54	56	2.44	66	7.17	36.9
9	David Cone D. Cone	190	1989	NYM	34	14	8	.636	33	3.52	7	2	0	219.2	183	86	92	20	74	4	0	6	910	14	7.78	3.03	2.57	0.82	20.9	8.1	1.17	.262	3.77	104	3.27	93	7.50	6
10	Bruce Hurst B. Hurst	179	1989	SDP	33	15	11	.577	33	2.69	10	2	0	244.2	214	73	84	16	66	0	0	7	990	8	6.58	2.43	2.71	0.59	18.1	6.7	1.14	.272	3.09	78	2.95	81	7.87	18.4
11	Orel Hershiser O. Hershiser	178	1989	LAD	35	15	15	.500	33	2.31	8	4	0	256.2	226	66	75	9	77	3	0	14	1,047	8	6.24	2.70	2.31	0.32	17.0	7.4	1.18	.278	2.63	68	2.76	78	7.92	22
12	Chris Bosio C. Bosio	173	1989	MIL	33	15	10	.600	33	2.95	8	2	0	234.2	225	77	90	16	48	6	0	1	969	4	6.63	1.84	3.60	0.61	17.9	5.0	1.16	.288	3.45	75	2.86	76	8.63	23.6
13	Mark Gubicza M. Gubicza	173	1989	KCR	36	15	11	.577	36	3.04	8	2	0	255.0	252	86	100	10	63	5	0	8	1,060	9	6.11	2.22	2.75	0.35	16.3	5.9	1.24	.299	3.53	78	2.71	74	8.89	28.1
14	Mike Moore M. Moore	172	1989	OAK	35	19	11	.633	35	2.61	6	3	0	241.2	193	70	82	14	83	2	0	1	976	17	6.41	3.09	2.07	0.52	17.6	8.5	1.14	.254	3.05	71	3.14	86	7.19	13.6
15	Mike Scott M. Scott	172	1989	HOU	33	20	10	.667	32	3.10	9	2	0	229.0	180	79	87	23	62	3	1	12	924	7	6.76	2.44	2.77	0.90	18.6	6.7	1.06	.236	3.42	93	3.41	101	7.07	-1.5
16	John Smoltz J. Smoltz	168	1989	ATL	29	12	11	.522	29	2.94	5	0	0	208.0	160	68	79	15	72	2	0	2	847	8	7.27	3.12	2.33	0.65	19.8	8.5	1.12	.246	3.42	79	3.14	84	6.92	13.6
17	Bobby Witt B. Witt	166	1989	TEX	31	12	13	.480	31	5.14	5	1	0	194.1	182	111	123	14	114	2	0	3	869	7	7.69	5.28	1.46	0.65	19.1	13.1	1.52	.293	5.70	131	3.77	98	8.43	1.4
18	Ken Howell K. Howell	164	1989	PHI	33	12	12	.500	32	3.44	1	1	0	204.0	155	78	84	11	86	2	0	6	827	21	7.24	3.79	1.91	0.49	19.8	10.4	1.18	.255	3.71	97	3.14	87	6.84	11.1
19	Kevin Gross K. Gross	158	1989	MON	31	11	12	.478	31	4.38	4	3	0	201.1	188	98	105	20	88	6	0	6	867	5	7.06	3.93	1.80	0.89	18.2	10.1	1.37	.282	4.69	125	3.88	109	8.40	-7.3
20	Chuck Finley C. Finley	156	1989	CAL	29	16	9	.640	29	2.57	9	1	0	199.2	171	57	64	13	82	2	0	0	827	4	7.03	3.70	1.90	0.59	18.9	9.9	1.27	.275	2.88	68	3.30	85	7.71	12.6
21	Dave Stewart D. Stewart	155	1989	OAK	36	21	9	.700	36	3.32	8	0	0	257.2	260	95	105	23	69	6	0	0	1,081	13	5.41	2.41	2.25	0.80	14.3	6.4	1.28	.286	3.67	91	3.58	98	9.08	1.2
22	Ron Darling R. Darling	153	1989	NYM	33	14	14	.500	33	3.52	4	0	0	217.1	214	85	100	19	70	3	0	7	922	12	6.34	2.90	2.19	0.79	16.6	7.6	1.31	.288	4.14	104	3.49	99	8.86	0.6
23	Jim Deshaies J. Deshaies	153	1989	HOU	34	15	10	.600	34	2.91	6	3	0	225.2	180	73	80	15	79	4	0	8	928	8	6.10	3.15	1.94	0.60	16.5	8.5	1.15	.244	3.19	87	3.37	100	7.18	-0.4
24	Tom Gordon T. Gordon	153	1989	KCR	49	17	9	.654	16	3.64	1	1	1	163.0	122	66	67	10	86	1	16	4	677	12	8.45	4.75	1.78	0.55	22.6	12.7	1.28	.262	3.70	94	3.28	89	6.74	7.3
25	Rick Sutcliffe R. Sutcliffe	153	1989	CHC	35	16	11	.593	34	3.66	5	1	0	229.0	202	93	98	18	69	2	0	8	938	12	6.01	2.71	2.22	0.71	16.3	7.4	1.18	.264	3.85	100	3.37	91	7.94	8.6