Randy Johnson fanned the most batters by a pitcher in his 15th season, with 334 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	Randy Johnson R. Johnson	334	2002	ARI	35	24	5	.828	35	2.32	8	4	0	260.0	197	67	78	26	71	13	0	1	1,035	3	11.56	2.46	4.70	0.90	32.3	6.9	1.03	.289	2.70	54	2.65	61	6.82	47
2	Curt Schilling C. Schilling	316	2002	ARI	36	23	7	.767	35	3.23	5	1	0	259.1	218	93	95	29	33	3	0	1	1,017	6	10.97	1.15	9.58	1.01	31.1	3.2	0.97	.297	3.30	75	2.39	55	7.57	54.3
3	Justin Verlander J. Verlander	300	2019	HOU	34	21	6	.778	34	2.58	2	1	0	223.0	137	64	66	36	42	6	0	0	847	4	12.11	1.70	7.14	1.45	35.4	5.0	0.80	.218	2.66	57	3.26	72	5.53	31.5
4	Roger Clemens R. Clemens	271	1998	TOR	33	20	6	.769	33	2.65	5	3	0	234.2	169	69	78	11	88	7	0	0	961	6	10.39	3.38	3.08	0.42	28.2	9.2	1.10	.271	2.99	57	2.65	59	6.48	49.2
5	Phil Niekro P. Niekro	248	1978	ATL	44	19	18	.514	42	2.88	22	4	1	334.1	295	107	129	16	102	13	1	5	1,389	11	6.68	2.75	2.43	0.43	17.9	7.3	1.19	.276	3.47	73	2.74	72	7.94	38.1
6	Steve Carlton S. Carlton	213	1979	PHI	35	18	11	.621	35	3.62	13	4	0	251.0	202	101	112	25	89	5	0	11	1,029	10	7.64	3.19	2.39	0.90	20.7	8.6	1.16	.254	4.02	94	3.44	90	7.24	11.3
7	A.J. Burnett	209	2013	PIT	30	10	11	.476	30	3.30	1	0	0	191.0	165	70	79	11	67	9	0	3	801	12	9.85	3.16	3.12	0.52	26.1	8.4	1.21	.305	3.72	92	2.80	77	7.77	18.4
8	Charlie Morton C. Morton	205	2022	ATL	31	9	6	.600	31	4.34	0	0	0	172.0	149	83	85	28	63	18	0	0	728	4	10.73	3.30	3.25	1.47	28.2	8.7	1.23	.292	4.45	106	4.25	108	7.80	-6
9	Cy Young C. Young	200	1904	BSA	43	26	16	.619	41	1.97	40	10	1	380.0	327	83	104	6	29	4	2		1,435	4	4.74	0.69	6.90	0.14	13.9	2.0	0.94	.268	2.46	74	1.83	72	7.74	31.1
10	Zack Greinke Z. Greinke	199	2018	ARI	33	15	11	.577	33	3.21	0	0	0	207.2	181	74	77	28	43	6	0	3	839	4	8.62	1.86	4.63	1.21	23.7	5.1	1.08	.272	3.34	79	3.70	93	7.84	6.4
11	Greg Maddux G. Maddux	190	2000	ATL	35	19	9	.679	35	3.00	6	3	0	249.1	225	83	91	19	42	10	0	12	1,012	1	6.86	1.52	4.52	0.69	18.8	4.2	1.07	.274	3.28	65	3.22	69	8.12	40.2
12	Chuck Finley C. Finley	189	2000	CLE	34	16	11	.593	34	4.17	3	0	0	218.0	211	101	108	23	101	2	0	3	936	9	7.80	4.17	1.87	0.95	20.2	10.8	1.43	.303	4.46	82	4.18	85	8.71	17.8
13	Max Scherzer M. Scherzer	173	2022	NYM	23	11	5	.688	23	2.29	0	0	0	145.1	108	37	39	13	24	11	0	0	565	1	10.71	1.49	7.21	0.81	30.6	4.2	0.91	.276	2.42	60	2.61	66	6.69	21.7
14	Bert Blyleven B. Blyleven	170	1984	CLE	33	19	7	.731	32	2.87	12	4	0	245.0	204	78	86	19	74	6	0	4	1,004	6	6.24	2.72	2.30	0.70	16.9	7.4	1.13	.252	3.16	71	3.36	83	7.49	18.8
15	Chris Sale C. Sale	165	2025	ATL	21	7	5	.583	20	2.58	0	0	0	125.2	102	36	38	11	32	11	0	0	510	3	11.82	2.29	5.16	0.79	32.4	6.3	1.07	.313	2.72	61	2.67	66	7.31	19.6
16	Charlie Hough C. Hough	164	1984	TEX	36	16	14	.533	36	3.76	17	1	0	266.0	260	111	127	26	94	9	0	3	1,133	12	5.55	3.18	1.74	0.88	14.5	8.3	1.33	.279	4.30	95	3.96	101	8.80	-1.1
17	Fergie Jenkins F. Jenkins	164	1979	TEX	37	16	14	.533	37	4.07	10	3	0	259.0	252	117	127	40	81	3	0	6	1,089	4	5.70	2.81	2.02	1.39	15.1	7.4	1.29	.265	4.41	98	4.43	109	8.76	-11.6
18	Jack Morris J. Morris	163	1991	MIN	35	18	12	.600	35	3.43	10	2	0	246.2	226	94	107	18	92	5	0	5	1,032	15	5.95	3.36	1.77	0.66	15.8	8.9	1.29	.276	3.90	81	3.66	91	8.25	9.4
19	Jim Bunning J. Bunning	157	1969	TOT	34	13	10	.565	34	3.69	5	0	0	212.1	212	87	97	15	59	7	0	4	892	4	6.65	2.50	2.66	0.64	17.6	6.6	1.28	.301	4.11	106	2.88	86	8.99	10.6
20	Dennis Martinez D. Martinez	156	1990	MON	32	10	11	.476	32	2.95	7	2	0	226.0	191	74	80	16	49	6	0	9	908	1	6.21	1.95	3.18	0.64	17.2	5.4	1.06	.257	3.19	78	3.07	83	7.61	16.2
21	Ryan Dempster R. Dempster	153	2012	TOT	28	12	8	.600	28	3.38	0	0	0	173.0	155	65	71	19	52	2	0	0	717	2	7.96	2.71	2.94	0.99	21.3	7.3	1.20	.277	3.69	81	3.68	91	8.06	6.9
22	John Lackey J. Lackey	149	2017	CHC	31	12	12	.500	30	4.59	0	0	0	170.2	165	87	93	36	53	12	0	3	731	11	7.86	2.79	2.81	1.90	20.4	7.3	1.28	.268	4.90	106	5.29	123	8.70	-18.4
23	Andy Pettitte A. Pettitte	148	2009	NYY	32	14	8	.636	32	4.16	0	0	0	194.2	193	90	101	20	76	4	0	1	834	3	6.84	3.51	1.95	0.92	17.7	9.1	1.38	.295	4.67	91	4.14	90	8.92	9.6
24	Eddie Plank E. Plank	147	1915	SLF	42	21	11	.656	31	2.08	23	6	3	268.1	212	62	75	1	54	3	10		1,028	4	4.93	1.81	2.72	0.03	14.3	5.3	0.99	.256	2.52	67	2.00	66	7.11	30.8
25	Frank Tanana F. Tanana	146	1987	DET	34	15	10	.600	34	3.91	5	3	0	218.2	216	95	106	27	56	5	0	5	924	6	6.01	2.30	2.61	1.11	15.8	6.1	1.24	.274	4.36	90	3.97	87	8.89	14.1