highest strikeout percentage for a pitcher in a single season since 1947 min 90 ip

Since 1947, Jacob deGrom has the highest strikeout percentage with 90.0+ innings pitched in a season, with a strikeout percentage of 45.1 in 2021.

	NAME	K%	IP	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Jacob deGrom J. deGrom	45.1	92.0	2021	NYM	15	7	2	.778	15	1.08	146	1	1	0	40	11	14	6	11	1	0	0	324	0	14.28	1.08	13.27	0.59	3.4	0.55	.213	1.37	27	1.23	29	3.91	30.6
2	Brad Lidge B. Lidge	42.5	94.2	2004	HOU	80	6	5	.545	0	1.90	157	0	0	29	57	20	21	8	30	6	44	5	369	3	14.93	2.85	5.23	0.76	8.1	0.92	.292	2.00	44	1.96	44	5.42	25.9
3	Gerrit Cole G. Cole	39.9	212.1	2019	HOU	33	20	5	.800	33	2.50	326	0	0	0	142	59	66	29	48	3	0	0	817	4	13.82	2.03	6.79	1.23	5.9	0.89	.275	2.80	55	2.63	58	6.02	45
4	Dellin Betances D. Betances	39.6	90.0	2014	NYY	70	5	0	1.000	0	1.40	135	0	0	1	46	14	15	4	24	4	8	1	341	2	13.50	2.40	5.63	0.40	7.0	0.78	.241	1.50	36	1.64	42	4.60	22.2
5	Chris Sale C. Sale	38.4	158.0	2018	BOS	27	12	4	.750	27	2.11	237	0	0	0	102	37	39	11	34	14	0	0	617	4	13.50	1.94	6.97	0.63	5.5	0.86	.283	2.22	48	1.97	47	5.81	39.2
6	Spencer Strider S. Strider	38.3	131.2	2022	ATL	31	11	5	.688	20	2.67	202	0	0	0	86	39	42	7	45	3	3	1	528	6	13.81	3.08	4.49	0.48	8.5	0.99	.292	2.87	65	1.82	46	5.88	31.3
7	Pedro Martinez P. Martinez	37.5	213.1	1999	BOS	31	23	4	.852	29	2.07	313	5	1	0	160	49	56	9	37	9	1	1	835	6	13.20	1.56	8.46	0.38	4.4	0.92	.323	2.36	42	1.38	30	6.75	79.4
8	Randy Johnson R. Johnson	37.4	249.2	2001	ARI	35	21	6	.778	34	2.49	372	3	2	0	181	69	74	19	71	18	1	2	994	8	13.41	2.56	5.24	0.68	7.1	1.01	.315	2.67	55	2.12	48	6.52	63.9
9	Spencer Strider S. Strider	36.8	186.2	2023	ATL	32	19	5	.792	32	3.86	281	0	0	0	146	80	85	22	58	9	0	1	763	6	13.55	2.80	4.84	1.06	7.6	1.09	.316	4.10	87	2.85	66	7.04	30.3
10	Chris Sale C. Sale	36.2	214.1	2017	BOS	32	17	8	.680	32	2.90	308	1	0	0	165	69	73	24	43	8	0	0	851	3	12.93	1.81	7.16	1.01	5.1	0.97	.301	3.07	63	2.45	56	6.93	45.5
11	Pedro Martinez P. Martinez	35.7	116.2	2001	BOS	18	7	3	.700	18	2.39	163	1	0	0	84	31	33	5	25	6	0	0	456	4	12.57	1.93	6.52	0.39	5.5	0.93	.307	2.55	52	1.60	37	6.48	35.8
12	Chris Sale C. Sale	35.6	147.1	2019	BOS	25	6	11	.353	25	4.40	218	1	1	0	123	72	80	24	37	13	0	0	612	2	13.32	2.26	5.89	1.47	6.0	1.09	.309	4.89	91	3.38	75	7.51	18.8
13	Corbin Burnes C. Burnes	35.6	167.0	2021	MIL	28	11	5	.688	28	2.43	234	0	0	0	123	45	47	7	34	6	0	0	657	5	12.61	1.83	6.88	0.38	5.2	0.94	.309	2.53	58	1.62	38	6.63	48.9
14	Justin Verlander J. Verlander	35.4	223.0	2019	HOU	34	21	6	.778	34	2.58	300	2	1	0	137	64	66	36	42	6	0	0	847	4	12.11	1.70	7.14	1.45	5.0	0.80	.218	2.66	57	3.26	72	5.53	31.5
15	Rob Dibble R. Dibble	35.4	98.0	1990	CIN	68	8	3	.727	0	1.74	136	0	0	11	62	19	22	3	34	1	29	3	384	3	12.49	3.12	4.00	0.28	8.9	0.98	.281	2.02	45	1.49	38	5.69	26
16	Tom Henke T. Henke	35.3	94.0	1987	TOR	72	0	6	.000	0	2.49	128	0	0	34	62	26	27	10	25	0	62	3	363	5	12.26	2.39	5.12	0.96	6.9	0.93	.260	2.59	55	2.32	53	5.94	22.1
17	Rob Dibble R. Dibble	35.2	99.0	1989	CIN	74	10	5	.667	0	2.09	141	0	0	2	62	23	23	4	39	3	18	11	401	7	12.82	3.55	3.62	0.36	9.7	1.02	.271	2.09	58	1.70	45	5.64	21.9
18	Garrett Crochet G. Crochet	35.1	146.0	2024	CWS	32	6	12	.333	32	3.58	209	0	0	0	123	58	61	18	33	5	0	0	595	3	12.88	2.03	6.33	1.11	5.5	1.07	.318	3.76	88	2.68	64	7.58	24.3
19	Max Scherzer M. Scherzer	35.1	172.1	2019	WSH	27	11	7	.611	27	2.92	243	0	0	0	144	56	59	18	33	7	0	2	693	0	12.69	1.72	7.36	0.94	4.8	1.03	.321	3.08	66	2.44	55	7.52	38.6
20	Justin Verlander J. Verlander	34.8	214.0	2018	HOU	34	16	9	.640	34	2.52	290	1	1	0	156	60	63	28	37	8	0	0	833	5	12.20	1.56	7.84	1.18	4.4	0.90	.272	2.65	62	2.78	67	6.56	33
21	Pedro Martinez P. Martinez	34.8	217.0	2000	BOS	29	18	6	.750	29	1.74	284	7	4	0	128	42	44	17	32	14	0	0	817	1	11.78	1.33	8.88	0.71	3.9	0.74	.236	1.82	35	2.16	47	5.31	61.5
22	Blake Snell B. Snell	34.7	104.0	2024	SFG	20	5	3	.625	20	3.12	145	1	1	0	65	36	38	6	44	1	0	0	418	8	12.55	3.81	3.30	0.52	10.5	1.05	.266	3.29	78	2.42	62	5.63	17.6
23	Randy Johnson R. Johnson	34.7	248.2	2000	ARI	35	19	7	.731	35	2.64	347	8	3	0	202	73	89	23	76	6	0	1	1,001	5	12.56	2.75	4.57	0.83	7.6	1.12	.326	3.22	56	2.53	53	7.31	61.1
24	Carlos Rodón C. Rodón	34.6	132.2	2021	CWS	24	13	5	.722	24	2.37	185	1	1	0	91	35	39	13	36	8	0	1	534	7	12.55	2.44	5.14	0.88	6.7	0.96	.267	2.65	54	2.64	59	6.17	25.8
25	Max Scherzer M. Scherzer	34.6	220.2	2018	WSH	33	18	7	.720	33	2.53	300	2	1	0	150	62	66	23	51	12	0	4	866	4	12.24	2.08	5.88	0.94	5.9	0.91	.265	2.69	62	2.65	64	6.12	36.1