highest strikeout percentage for a pitcher in a single season since 1947 min 60 ip

Since 1947, Craig Kimbrel has the best strikeout percentage with 60.0+ innings pitched in a season, with a strikeout percentage of 50.2 in 2012.

	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	Craig Kimbrel C. Kimbrel	50.2	62.2	2012	ATL	63	3	1	.750	0	1.01	116	0	0	42	27	7	7	3	14	2	56	0	231	5	16.66	2.01	8.29	0.43	6.1	0.65	.250	1.01	26	0.77	20	3.88	21.6
2	Edwin Díaz E. Díaz	50.2	62.0	2022	NYM	61	3	1	.750	0	1.31	118	0	0	32	34	9	9	3	18	2	49	1	235	2	17.13	2.61	6.56	0.44	7.7	0.84	.330	1.31	34	0.90	23	4.94	21.2
3	Craig Kimbrel C. Kimbrel	49.6	69.0	2017	BOS	67	5	0	1.000	0	1.43	126	0	0	35	33	11	11	6	14	4	51	0	254	5	16.43	1.83	9.00	0.78	5.5	0.68	.260	1.43	31	1.41	32	4.30	22.7
4	Josh Hader J. Hader	47.8	75.2	2019	MIL	61	3	5	.375	0	2.62	138	0	0	37	41	22	24	15	20	4	46	2	289	0	16.41	2.38	6.90	1.78	6.9	0.81	.232	2.85	59	3.08	70	4.88	11.3
5	Josh Hader J. Hader	46.7	81.1	2018	MIL	55	6	1	.857	0	2.43	143	0	0	12	36	22	23	9	30	1	14	0	306	0	15.82	3.32	4.77	1.00	9.8	0.81	.220	2.55	60	2.22	55	3.98	16.6
6	Félix Bautista F. Bautista	46.4	61.0	2023	BAL	56	8	2	.800	0	1.48	110	0	0	33	30	10	14	4	26	2	46	0	237	7	16.23	3.84	4.23	0.59	11.0	0.92	.274	2.07	35	1.87	45	4.43	16
7	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
8	Eric Gagne E. Gagne	44.8	82.1	2003	LAD	77	2	3	.400	0	1.20	137	0	0	55	37	11	12	2	20	3	67	2	306	2	14.98	2.19	6.85	0.22	6.5	0.69	.243	1.31	30	0.85	20	4.04	31.8
9	Andrew Miller A. Miller	44.7	74.1	2016	TOT	70	10	1	.909	0	1.45	123	0	0	12	42	12	13	8	9	2	23	0	275	1	14.89	1.09	13.67	0.97	3.3	0.69	.256	1.57	34	1.67	38	5.09	21.7
10	Mason Miller M. Miller	44.4	61.2	2025	TOT	60	1	2	.333	0	2.63	104	0	0	22	28	18	19	5	28	1	37	2	234	3	15.18	4.09	3.71	0.73	12.0	0.91	.240	2.77	64	2.22	53	4.09	13.2
11	Edwin Díaz E. Díaz	44.3	73.1	2018	SEA	73	0	4	.000	0	1.96	124	0	0	57	41	16	17	5	17	6	65	0	280	3	15.22	2.09	7.29	0.61	6.1	0.79	.281	2.09	48	1.60	38	5.03	21.3
12	Aroldis Chapman A. Chapman	44.2	71.2	2012	CIN	68	5	5	.500	0	1.51	122	0	0	38	35	12	13	4	23	4	52	0	276	4	15.32	2.89	5.30	0.50	8.3	0.81	.252	1.63	38	1.54	38	4.40	19.3
13	Aroldis Chapman A. Chapman	43.4	63.2	2013	CIN	68	4	5	.444	0	2.54	112	0	0	38	37	18	18	7	29	3	55	0	258	6	15.83	4.10	3.86	0.99	11.2	1.04	.280	2.54	67	2.46	64	5.23	9.8
14	Billy Wagner B. Wagner	43.4	74.2	1999	HOU	66	4	1	.800	0	1.57	124	0	0	39	35	13	14	5	23	1	55	1	286	2	14.95	2.77	5.39	0.60	8.0	0.78	.226	1.69	37	1.64	38	4.22	23.6
15	Jacob deGrom J. deGrom	42.7	64.1	2022	NYM	11	5	4	.556	11	3.08	102	0	0	0	40	22	22	9	8	0	0	0	239	0	14.27	1.12	12.75	1.26	3.3	0.75	.258	3.08	80	2.13	54	5.60	13.1
16	Andrew Miller A. Miller	42.6	62.1	2014	TOT	73	5	5	.500	0	2.02	103	0	0	1	33	14	16	3	17	5	15	2	242	3	14.87	2.45	6.06	0.43	7.0	0.80	.263	2.31	51	1.51	40	4.76	15.8
17	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
18	Liam Hendriks L. Hendriks	42.3	71.0	2021	CWS	69	8	3	.727	0	2.54	113	0	0	38	45	20	23	11	7	1	58	1	267	6	14.32	0.89	16.14	1.39	2.6	0.73	.252	2.92	58	2.33	52	5.70	16.2
19	Dellin Betances D. Betances	42.3	66.2	2018	NYY	66	4	6	.400	0	2.70	115	0	0	4	44	20	22	7	26	5	15	2	272	4	15.52	3.51	4.42	0.95	9.6	1.05	.311	2.97	63	2.47	57	5.94	13.5
20	Kenley Jansen K. Jansen	42.2	68.1	2017	LAD	65	5	0	1.000	0	1.32	109	0	0	41	44	10	11	5	7	2	57	0	258	2	14.36	0.92	15.57	0.66	2.7	0.75	.289	1.45	32	1.31	31	5.80	22.6
21	Dellin Betances D. Betances	42.1	73.0	2016	NYY	73	3	6	.333	0	3.08	126	0	0	12	54	25	31	5	28	1	20	0	299	6	15.53	3.45	4.50	0.62	9.4	1.12	.353	3.82	73	1.77	40	6.66	20.7
22	Brad Boxberger B. Boxberger	42.1	64.2	2014	TBR	63	5	2	.714	0	2.37	104	0	0	2	34	17	17	9	20	4	10	0	247	3	14.47	2.78	5.20	1.25	8.1	0.84	.227	2.37	64	2.83	77	4.73	6.1
23	Mason Miller M. Miller	41.8	65.0	2024	OAK	55	2	2	.500	0	2.49	104	0	0	28	36	18	23	6	21	1	44	3	249	2	14.40	2.91	4.95	0.83	8.4	0.88	.256	3.18	65	2.17	55	4.98	13.2
24	Aroldis Chapman A. Chapman	41.7	66.1	2015	CIN	65	4	4	.500	0	1.63	116	0	0	33	43	12	13	3	33	5	54	1	278	7	15.74	4.48	3.52	0.41	11.9	1.15	.331	1.76	41	1.94	49	5.83	14.6
25	Nick Anderson N. Anderson	41.7	65.0	2019	TOT	68	5	4	.556	0	3.32	110	0	0	1	52	24	24	8	18	2	3	4	264	4	15.23	2.49	6.11	1.11	6.8	1.08	.349	3.32	79	2.34	54	7.20	14.7