Since 2023, Spencer Strider had the best K/9, with 11.89 per nine innings.

Interpreted as:

highest k/9 with a minimum of 0.5 IP per team game by a player in the last 3 seasons

	NAME	K/9	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Spencer Strider S. Strider	11.89	57	26	19	.578	57	4.18	424	0	0	0	321.0	280	149	155	44	114	17	0	1	1,344	7	3.20	3.72	1.23	31.5	8.5	1.23	.317	4.35	96	3.57	86	7.85	22.3
2	Garrett Crochet G. Crochet	11.77	77	24	19	.558	64	3.02	476	1	1	0	364.0	300	122	129	43	92	9	5	0	1,473	11	2.27	5.17	1.06	32.3	6.2	1.08	.301	3.19	72	2.90	69	7.42	52.7
3	Blake Snell B. Snell	11.75	63	24	16	.600	63	2.53	451	1	1	0	345.1	231	97	106	24	169	4	0	1	1,414	28	4.40	2.67	0.63	31.9	12.0	1.16	.270	2.76	61	3.00	71	6.02	45.9
4	Chris Sale C. Sale	11.42	70	31	13	.705	69	2.93	515	0	0	0	406.0	330	132	138	35	100	27	0	0	1,637	10	2.22	5.15	0.78	31.5	6.1	1.06	.307	3.06	68	2.70	65	7.32	63.6
5	Tyler Glasnow T. Glasnow	11.40	61	23	16	.590	61	3.42	436	0	0	0	344.1	241	131	138	38	115	4	0	0	1,373	28	3.01	3.79	0.99	31.8	8.4	1.03	.260	3.61	84	3.12	75	6.30	39.9
6	Cole Ragans C. Ragans	11.35	74	21	17	.553	57	3.51	434	1	0	0	344.0	269	134	144	29	128	10	1	2	1,411	20	3.35	3.39	0.76	30.8	9.1	1.15	.296	3.77	82	2.96	71	7.04	46.2
7	Hunter Greene H. Greene	11.02	67	20	16	.556	67	3.38	453	1	1	0	370.0	282	139	147	46	131	29	0	0	1,529	17	3.19	3.46	1.12	29.6	8.6	1.12	.271	3.58	75	3.64	82	6.86	31.2
8	Dylan Cease D. Cease	11.00	98	29	32	.475	98	4.18	653	1	1	0	534.1	461	248	269	58	215	16	0	5	2,268	30	3.62	3.04	0.98	28.8	9.5	1.27	.304	4.53	101	3.44	83	7.76	43.1
9	Tarik Skubal T. Skubal	10.99	77	38	13	.745	77	2.39	571	1	1	0	467.2	341	124	137	37	82	17	0	0	1,811	6	1.58	6.96	0.71	31.5	4.5	0.90	.275	2.64	59	2.38	58	6.56	90.6
10	Paul Skenes P. Skenes	10.83	55	21	13	.618	55	1.96	386	1	0	0	320.2	230	70	76	21	74	12	0	0	1,247	4	2.08	5.22	0.59	31.0	5.9	0.95	.277	2.13	46	2.39	58	6.46	61
11	DJ Herz	10.76	19	4	9	.308	19	4.16	106	0	0	0	88.2	76	41	45	11	36	3	0	0	382	5	3.65	2.94	1.12	27.7	9.4	1.26	.288	4.57	102	3.70	90	7.71	3.9
12	Reid Detmers R. Detmers	10.72	106	13	21	.382	45	5.02	357	0	0	3	299.2	297	167	177	43	123	17	7	6	1,301	13	3.69	2.90	1.29	27.4	9.5	1.40	.334	5.32	119	4.08	94	8.92	8.3
13	Freddy Peralta F. Peralta	10.71	95	40	25	.615	95	3.40	614	0	0	0	516.0	398	195	205	73	188	25	0	0	2,128	18	3.28	3.27	1.27	28.9	8.8	1.14	.265	3.58	80	3.88	92	6.94	20.1
14	Zack Wheeler Z. Wheeler	10.48	88	39	18	.684	88	2.97	631	1	0	0	541.2	414	179	192	59	124	25	0	0	2,159	11	2.06	5.09	0.98	29.2	5.7	0.99	.269	3.19	70	3.09	72	6.88	70
15	Yoshinobu Yamamoto Y. Yamamoto	10.45	48	19	10	.655	48	2.66	306	0	0	0	263.2	191	78	85	21	81	4	0	0	1,052	7	2.76	3.78	0.72	29.1	7.7	1.03	.266	2.90	65	2.82	67	6.52	39.5
16	Nick Pivetta N. Pivetta	10.44	96	29	26	.527	73	3.62	545	0	0	1	470.0	367	189	202	73	136	10	3	3	1,903	10	2.60	4.01	1.40	28.6	7.1	1.07	.258	3.87	85	3.81	91	7.03	19.2
17	Joe Ryan J. Ryan	10.35	83	31	27	.534	82	3.85	538	1	1	0	467.2	403	200	211	77	96	23	0	0	1,899	5	1.85	5.60	1.48	28.3	5.1	1.07	.280	4.06	93	3.78	90	7.76	20.9
18	Michael King M. King	10.34	95	22	20	.524	54	2.99	404	1	1	6	351.2	294	117	137	39	121	16	10	3	1,465	5	3.10	3.34	1.00	27.6	8.3	1.18	.288	3.51	74	3.49	84	7.52	25.3
19	Eury Pérez E. Pérez	10.27	39	12	12	.500	39	3.71	213	0	0	0	186.2	140	77	82	27	63	5	0	0	759	15	3.04	3.38	1.30	28.1	8.3	1.09	.251	3.95	85	3.88	91	6.75	7.7
20	Jack Flaherty J. Flaherty	10.21	88	29	31	.483	86	4.24	530	0	0	0	467.1	444	220	229	64	163	21	0	3	1,980	18	3.14	3.25	1.23	26.8	8.2	1.30	.316	4.41	103	3.87	93	8.55	14.7
21	Edward Cabrera E. Cabrera	10.11	68	19	22	.463	66	4.15	375	0	0	0	333.2	281	154	168	43	164	19	0	0	1,433	10	4.42	2.29	1.16	26.2	11.4	1.33	.286	4.53	96	4.25	102	7.58	-2.4
22	Jesús Luzardo J. Luzardo	10.11	76	28	23	.549	76	3.94	482	0	0	0	429.0	390	188	201	47	134	11	0	1	1,773	12	2.81	3.60	0.99	27.2	7.6	1.22	.312	4.22	92	3.38	79	8.18	41.6
23	Kodai Senga K. Senga	10.11	52	20	13	.606	52	3.00	320	0	0	0	285.0	222	95	106	30	133	9	0	0	1,196	19	4.20	2.41	0.95	26.8	11.1	1.25	.273	3.35	73	3.82	90	7.01	13
24	Spencer Arrighetti S. Arrighetti	10.08	36	8	18	.308	35	4.69	202	0	0	0	180.1	169	94	101	27	85	10	0	0	788	3	4.24	2.38	1.35	25.6	10.8	1.41	.306	5.04	118	4.44	109	8.43	-7.7
25	MacKenzie Gore M. Gore	10.06	89	22	37	.373	89	4.15	517	0	0	0	462.1	457	213	239	62	186	17	0	0	1,993	32	3.62	2.78	1.21	25.9	9.3	1.39	.326	4.65	99	4.00	94	8.90	11.3