Between the 1990 and 1999 seasons, Randy Johnson fanned the most hitters, with 2,538 strikeouts.

Interpreted as:

most pitching ks by a player in the 1990s

	NAME	SO	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	Randy Johnson R. Johnson	2,538	298	150	75	.667	290	3.14	65	25	2	2063.1	1,560	721	805	183	910	98	3	13	8,557	65	11.07	3.97	2.79	0.80	29.7	10.6	1.20	.285	3.51	72	3.16	73	6.80	281.4
2	Roger Clemens R. Clemens	2,101	305	152	89	.631	305	3.02	57	24	0	2177.2	1,829	731	813	139	731	82	0	28	8,968	59	8.68	3.02	2.87	0.57	23.4	8.2	1.18	.286	3.36	66	3.02	68	7.56	333
3	David Cone D. Cone	1,928	289	141	85	.624	287	3.21	40	16	0	2017.0	1,667	720	792	169	774	73	1	19	8,378	100	8.60	3.45	2.49	0.75	23.0	9.2	1.21	.276	3.53	76	3.43	80	7.44	185.5
4	John Smoltz J. Smoltz	1,893	315	143	95	.601	315	3.32	42	14	0	2142.1	1,858	791	867	170	669	34	0	49	8,803	109	7.95	2.81	2.83	0.71	21.5	7.6	1.18	.280	3.64	81	3.25	79	7.81	206.5
5	Chuck Finley C. Finley	1,784	316	135	108	.556	316	3.76	46	13	0	2144.0	2,040	896	1,004	217	888	59	0	16	9,137	102	7.49	3.73	2.01	0.91	19.5	9.7	1.37	.295	4.21	84	3.99	89	8.56	121.7
6	Greg Maddux G. Maddux	1,764	331	176	88	.667	331	2.54	75	23	0	2394.2	2,084	677	786	111	443	60	0	74	9,563	32	6.63	1.66	3.98	0.42	18.4	4.6	1.06	.275	2.95	62	2.77	67	7.83	361.6
7	Andy Benes A. Benes	1,655	318	125	116	.519	314	3.79	19	9	1	2068.1	1,950	872	952	212	698	42	2	49	8,729	61	7.20	3.04	2.37	0.92	19.0	8.0	1.28	.284	4.14	93	3.82	91	8.49	80.3
8	Kevin Brown K. Brown	1,581	316	143	98	.593	314	3.25	58	16	0	2211.1	2,107	798	917	128	605	103	1	33	9,198	74	6.43	2.46	2.61	0.52	17.2	6.6	1.23	.292	3.73	77	3.30	78	8.58	235.9
9	Curt Schilling C. Schilling	1,561	317	99	79	.556	210	3.31	57	13	13	1668.1	1,451	613	663	148	441	30	60	33	6,802	46	8.42	2.38	3.54	0.80	22.9	6.5	1.13	.282	3.58	80	3.16	77	7.83	175.5
10	Pedro Martinez P. Martinez	1,534	249	107	50	.682	182	2.83	28	11	3	1359.1	1,050	428	476	107	410	55	23	20	5,477	38	10.16	2.71	3.74	0.71	28.0	7.5	1.07	.280	3.15	65	2.90	68	6.95	213
11	Kevin Appier K. Appier	1,494	287	120	90	.571	276	3.47	32	10	0	1867.2	1,692	721	782	140	645	40	2	30	7,796	73	7.20	3.11	2.32	0.67	19.2	8.3	1.25	.283	3.77	76	3.48	79	8.15	191.9
12	Tom Glavine T. Glavine	1,465	327	164	87	.653	327	3.21	38	14	0	2228.0	2,101	794	877	141	764	23	0	72	9,325	50	5.92	3.09	1.92	0.57	15.7	8.2	1.29	.283	3.54	78	3.58	86	8.49	138.4
13	Todd Stottlemyre T. Stottlemyre	1,369	294	118	98	.546	283	4.16	25	6	1	1850.1	1,830	856	932	198	683	72	5	38	7,953	56	6.66	3.32	2.00	0.96	17.2	8.6	1.36	.290	4.53	97	4.14	96	8.90	42.3
14	Mike Mussina M. Mussina	1,325	254	136	66	.673	254	3.50	39	14	0	1772.0	1,659	689	731	182	421	19	0	15	7,214	36	6.73	2.14	3.15	0.92	18.4	5.8	1.17	.280	3.71	77	3.63	80	8.43	180
15	Bobby Witt B. Witt	1,270	299	99	113	.467	279	4.80	28	8	0	1737.0	1,869	927	1,021	187	846	27	11	27	7,714	72	6.58	4.38	1.50	0.97	16.5	11.0	1.56	.312	5.29	108	4.46	101	9.68	-10.4
16	Tom Gordon T. Gordon	1,260	390	87	85	.506	185	4.20	17	3	70	1466.1	1,378	684	759	122	714	27	142	32	6,398	79	7.73	4.38	1.76	0.75	19.7	11.2	1.43	.294	4.66	93	3.89	90	8.46	74.4
17	Darryl Kile D. Kile	1,247	277	92	95	.492	249	4.32	21	7	0	1621.0	1,610	778	871	150	767	85	8	36	7,149	83	6.92	4.26	1.63	0.83	17.4	10.7	1.47	.298	4.84	101	4.30	104	8.94	-27.7
18	David Wells D. Wells	1,244	331	127	87	.593	272	4.11	36	9	6	1897.0	1,908	866	938	233	436	43	25	40	7,884	60	5.90	2.07	2.85	1.11	15.8	5.5	1.24	.283	4.45	92	4.07	91	9.05	88.8
19	Juan Guzman J. Guzman	1,240	239	91	78	.538	239	4.03	17	3	0	1481.2	1,353	664	742	147	665	35	0	22	6,359	105	7.53	4.04	1.86	0.89	19.5	10.5	1.36	.282	4.51	89	4.07	89	8.22	75.5
20	John Burkett J. Burkett	1,233	316	119	101	.541	308	4.31	18	4	1	1934.0	2,109	927	1,007	180	479	62	2	38	8,246	21	5.74	2.23	2.57	0.84	15.0	5.8	1.34	.307	4.69	104	3.78	91	9.81	85.8
21	Jeff Fassero J. Fassero	1,229	366	92	83	.526	194	3.81	17	2	10	1465.1	1,439	620	711	146	507	26	64	28	6,291	68	7.55	3.11	2.42	0.90	19.5	8.1	1.33	.295	4.37	88	3.79	87	8.84	81.9
22	Alex Fernandez A. Fernandez	1,225	255	103	83	.554	253	3.73	33	10	0	1708.0	1,634	707	779	183	536	35	1	28	7,148	38	6.45	2.82	2.29	0.96	17.1	7.5	1.27	.281	4.10	88	3.98	92	8.61	69.2
23	Ramon Martinez R. Martinez	1,217	246	118	71	.624	245	3.45	35	18	0	1618.0	1,426	620	715	139	649	50	1	36	6,847	30	6.77	3.61	1.88	0.77	17.8	9.5	1.28	.269	3.98	92	3.90	99	7.93	3.1
24	Jack McDowell J. McDowell	1,212	247	119	77	.607	245	3.88	61	13	0	1702.1	1,691	733	783	160	532	39	0	24	7,176	52	6.41	2.81	2.28	0.85	16.9	7.4	1.31	.293	4.14	90	3.77	88	8.94	100.6
25	Mark Langston M. Langston	1,211	257	93	82	.531	231	4.11	34	5	0	1588.1	1,517	726	785	165	621	20	2	18	6,696	50	6.86	3.52	1.95	0.93	18.1	9.3	1.35	.289	4.45	95	4.00	91	8.60	64.7