4 pitchers are tied for the best career strikeout percentage, with a strikeout percentage of 100.0. The first three are Romy González, Danny Valencia and Scott Sheldon.

	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	Romy González R. González	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
2	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
3	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
4	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
5	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
6	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
7	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
8	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
9	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
10	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
11	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
12	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
13	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
14	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
15	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
16	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	69	4.95	75.7
17	Edwin Díaz E. Díaz	40.0	517	28	36	.438	0	2.85	837	0	0	252	515.1	355	163	176	54	182	39	393	9	2,092	33	14.62	3.18	4.60	0.94	8.7	1.04	.307	3.07	70	2.55	61	6.20	92.9
18	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
19	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
20	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
21	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
22	Aroldis Chapman A. Chapman	39.8	862	59	47	.557	0	2.52	1,329	0	0	367	820.1	474	230	255	54	408	33	562	7	3,337	87	14.58	4.48	3.26	0.59	12.2	1.08	.278	2.80	61	2.36	57	5.20	161.3
23	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
24	Félix Bautista F. Bautista	39.2	156	13	7	.650	0	2.01	248	0	0	67	161.1	84	36	42	14	72	3	104	1	632	10	13.83	4.02	3.44	0.78	11.4	0.97	.237	2.34	51	2.62	65	4.69	25.9
25	Mason Miller M. Miller	39.1	123	3	7	.300	6	2.85	240	0	0	49	157.2	88	50	57	13	64	5	80	5	614	8	13.70	3.65	3.75	0.74	10.4	0.96	.257	3.25	71	2.51	61	5.02	27.8