what pitcher has the highest strikeout percentage in mlb history

5 pitchers are tied for the best career strikeout percentage, with a strikeout percentage of 100.0. The first three are Gavin Collyer, Romy Gonzalez and Danny Valencia.

	NAME	K%	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	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	Gavin Collyer G. Collyer	100.0	1	0	0		0	0.00	1	0	0	0	0.1	0	0	0	0	0	0	0	0	1	0	27.00	0.00		0.00	0.0	0.00		0.00	0	-2.84	-67	0.00	0.3
2	Romy Gonzalez R. Gonzalez	100.0	1	0	0		0	0.00	1	0	0	0	0.1	0	0	0	0	0	0	1	0	1	0	27.00	0.00		0.00	0.0	0.00		0.00	0	-2.84	-64	0.00	0.3
3	Danny Valencia D. Valencia	100.0	1	0	0		0	0.00	1	0	0	0	0.1	0	0	0	0	0	0	1	0	1	0	27.00	0.00		0.00	0.0	0.00		0.00	0	-2.84	-65	0.00	0.3
4	Scott Sheldon S. Sheldon	100.0	1	0	0		0	0.00	1	0	0	0	0.1	0	0	0	0	0	0	0	0	1	0	27.00	0.00		0.00	0.0	0.00		0.00	0	-2.87	-58	0.00	0.3
5	Kevin Seitzer K. Seitzer	100.0	1	0	0		0	0.00	1	0	0	0	0.1	0	0	0	0	0	0	1	0	1	0	27.00	0.00		0.00	0.0	0.00		0.00	0	-3.02	-71	0.00	0.3
6	Chuck Nieson C. Nieson	62.5	2	0	0		0	4.50	5	0	0	0	2.0	1	1	1	1	1	0	1	0	8	0	22.50	4.50	5.00	4.50	12.5	1.00	.000	4.50	122	5.60	146	4.50	-0.4
7	Chris Vallimont C. Vallimont	50.0	1	0	0		0	0.00	1	0	0	0	0.2	1	0	0	0	0	0	1	0	2	0	13.50	0.00		0.00	0.0	1.50	1.000	0.00	0	0.25	6	13.50	0.3
8	Josh Phegley J. Phegley	50.0	1	0	0		0	0.00	1	0	0	0	0.2	0	0	0	0	0	0	1	0	2	0	13.50	0.00		0.00	0.0	0.00	.000	0.00	0	0.14	3	0.00	0.3
9	Tyson Brummett T. Brummett	50.0	1	0	0		0	0.00	2	0	0	0	0.2	2	0	0	0	0	0	1	0	4	0	27.00	0.00		0.00	0.0	3.00	1.000	0.00	0	-2.91	-73	27.00	0.5
10	Rob Johnson R. Johnson	50.0	2	0	0		0	0.00	2	0	0	0	1.1	0	0	0	0	0	0	2	0	4	0	13.50	0.00		0.00	0.0	0.00	.000	0.00	0	0.08	1	0.00	0.6
11	Jim Mosolf J. Mosolf	50.0	1	0	0		0	27.00	1	0	0	0	0.1	1	1	1	0	0	0	1		2	0	27.00	0.00		0.00	0.0	3.00	1.000	27.00	538	-2.50	-50	27.00	0.3
12	Walter Bernhardt W. Bernhardt	50.0	1	0	0		0	0.00	1	0	0	0	0.2	0	0	0	0	0	0	1		2	0	13.50	0.00		0.00	0.0	0.00	.000	0.00	0	-0.77	-27	0.00	0.3
13	Rafael Martin R. Martin	44.1	21	2	0	1.000	0	4.50	30	0	0	0	16.0	12	8	10	4	6	1	7	0	68	0	16.88	3.38	5.00	2.25	8.8	1.13	.296	5.63	113	3.94	102	6.75	-0.1
14	John Holdzkom J. Holdzkom	43.8	9	1	0	1.000	0	2.00	14	0	0	1	9.0	4	2	2	1	2	0	3	0	32	1	14.00	2.00	7.00	1.00	6.3	0.67	.200	2.00	57	2.13	59	4.00	1.5
15	Jose Espada J. Espada	42.9	2	0	0		0	0.00	6	0	0	0	4.0	1	0	0	0	2	0	2	0	14	0	13.50	4.50	3.00	0.00	14.3	0.75	.167	0.00	0	1.66	39	2.25	1.1
16	Mark Whiten M. Whiten	42.9	1	0	0		0	9.00	3	0	0	0	1.0	1	1	1	0	2	1	1	0	7	0	27.00	18.00	1.50	0.00	28.6	3.00	1.000	9.00	190	6.13	134	9.00	-0.2
17	Josh Hader J. Hader	41.1	468	34	31	.523	0	2.64	829	0	0	226	512.1	282	150	164	65	198	24	321	6	2,019	19	14.56	3.48	4.19	1.14	9.8	0.94	.240	2.88	64	2.88	68	4.95	75.9
18	Mason Miller M. Miller	41.0	133	4	7	.364	6	2.67	266	0	0	55	168.1	89	50	57	13	66	5	88	5	649	8	14.22	3.53	4.03	0.70	10.2	0.92	.254	3.05	66	2.28	55	4.76	34.3
19	Aaron Altherr A. Altherr	40.0	1	0	0		0	9.00	2	0	0	0	1.0	2	1	1	0	0	0	1	0	5	0	18.00	0.00		0.00	0.0	2.00	.667	9.00	203	-0.80	-17	18.00	0.6
20	Don Leshnock D. Leshnock	40.0	1	0	0		0	0.00	2	0	0	0	1.0	2	0	0	0	0	0	1	0	5	0	18.00	0.00		0.00	0.0	2.00	.667	0.00	0	-1.61	-49	18.00	0.5
21	Mike Anderson M. Anderson	40.0	1	0	0		0	0.00	2	0	0	0	1.0	2	0	0	0	0	0	1	0	5	0	18.00	0.00		0.00	0.0	2.00	.667	0.00	0	-1.28	-33	18.00	0.6
22	Lee Dashner L. Dashner	40.0	1	0	0		0	5.40	2	0	0	0	1.2	0	1	1	0	0	0	1		5	1	10.80	0.00		0.00	0.0	0.00	.000	5.40	179	0.16	5	0.00	0.5
23	Edwin Díaz E. Díaz	39.8	526	29	36	.446	0	2.86	849	0	0	257	525.1	362	167	180	55	186	41	401	10	2,134	34	14.55	3.19	4.56	0.94	8.7	1.04	.306	3.08	71	2.58	62	6.20	93.2
24	Aroldis Chapman A. Chapman	39.8	869	60	48	.556	0	2.51	1,337	0	0	370	827.1	477	231	256	54	410	34	568	7	3,363	87	14.54	4.46	3.26	0.59	12.2	1.07	.277	2.78	61	2.36	57	5.19	162.7
25	Dellin Betances D. Betances	39.2	374	21	23	.477	1	2.53	633	0	0	36	394.1	240	111	124	26	183	28	86	5	1,613	28	14.45	4.18	3.46	0.59	11.3	1.07	.288	2.83	61	2.39	56	5.48	78.8

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Fri 4/17	TEX	@	SEA	9:40 PM
Sat 4/18	TEX	@	SEA	7:15 PM
Sun 4/19	TEX	@	SEA	4:10 PM
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Mets	7	12	.368	5.0
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Pirates	11	8	.579
Brewers	10	8	.556	0.5
Cardinals	10	8	.556	0.5
Cubs	9	9	.500	1.5
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Blue Jays	7	11	.389	4.0
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Tigers	10	9	.526	1.0
Royals	7	12	.368	4.0
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Athletics	10	9	.526
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Angels	10	10	.500	0.5
Astros	8	11	.421	2.0
Mariners	8	11	.421	2.0