Since 2020, Spencer Strider had the highest K/9, with 12.38 per nine innings.

Interpreted as:

strikeouts per 9 with a minimum of 0.5 IP per team game leaders 2020 to 2025

	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	12.38	90	38	24	.613	77	3.74	626	0	0	0	455.0	368	189	198	52	160	20	3	2	1,881	13	3.16	3.91	1.03	33.3	8.5	1.16	.309	3.92	87	3.09	75	7.28	52.1
2	Jacob deGrom J. deGrom	12.25	77	30	16	.652	77	2.45	596	1	1	0	438.0	279	119	127	51	79	5	0	0	1,659	8	1.62	7.54	1.05	35.9	4.8	0.82	.246	2.61	60	2.52	60	5.73	82.9
3	Tyler Glasnow T. Glasnow	11.97	88	33	19	.635	88	3.34	660	0	0	0	496.1	343	184	191	60	166	4	0	0	1,977	44	3.01	3.98	1.09	33.4	8.4	1.03	.260	3.46	81	3.12	75	6.22	58
4	Trevor Bauer T. Bauer	11.81	28	13	9	.591	28	2.24	237	3	2	0	180.2	112	45	53	28	54	6	0	2	710	6	2.69	4.39	1.39	33.4	7.6	0.92	.218	2.64	53	3.56	81	5.58	17.2
5	Blake Snell B. Snell	11.80	125	43	34	.558	125	3.08	855	1	1	0	652.0	477	223	237	61	307	9	0	2	2,702	48	4.24	2.79	0.84	31.6	11.4	1.20	.283	3.27	77	3.22	77	6.58	67.3
6	Garrett Crochet G. Crochet	11.64	136	27	24	.529	64	2.95	549	1	1	0	424.1	345	139	151	45	119	11	18	2	1,725	15	2.52	4.61	0.95	31.8	6.9	1.09	.300	3.20	70	2.86	67	7.32	64.7
7	Shohei Ohtani S. Ohtani	11.45	90	35	18	.660	90	2.96	607	1	1	0	477.0	350	157	165	50	160	23	0	2	1,928	47	3.02	3.79	0.94	31.5	8.3	1.07	.276	3.11	70	3.13	73	6.60	58
8	Chris Sale C. Sale	11.33	81	36	15	.706	80	2.95	572	0	0	0	454.1	380	149	160	41	113	32	0	1	1,845	10	2.24	5.06	0.81	31.0	6.1	1.09	.312	3.17	68	2.78	67	7.53	67.7
9	Hunter Greene H. Greene	11.20	91	25	29	.463	91	3.65	617	2	2	0	495.2	386	201	211	70	179	39	0	0	2,060	21	3.25	3.45	1.27	30.0	8.7	1.14	.274	3.83	82	3.83	88	7.01	29.1
10	Freddy Peralta F. Peralta	11.04	156	57	35	.620	140	3.33	942	1	0	0	767.2	558	284	297	95	283	42	2	1	3,150	25	3.32	3.33	1.11	29.9	9.0	1.10	.259	3.48	79	3.59	85	6.54	53.8
11	Dylan Cease D. Cease	10.98	174	61	51	.545	174	3.73	1,150	3	3	0	942.1	776	391	431	106	395	33	0	8	3,978	51	3.77	2.91	1.01	28.9	9.9	1.24	.292	4.12	90	3.55	83	7.41	71.3
12	Brandon Woodruff B. Woodruff	10.86	93	37	22	.627	93	2.81	649	2	1	0	538.0	392	168	179	63	132	22	0	0	2,131	6	2.21	4.92	1.05	30.5	6.2	0.97	.260	2.99	67	3.12	74	6.56	66.1
13	Gerrit Cole G. Cole	10.85	125	59	28	.678	125	3.12	915	6	4	0	759.0	593	263	279	102	185	19	0	2	3,018	13	2.19	4.95	1.21	30.3	6.1	1.03	.273	3.31	76	3.32	78	7.03	78.4
14	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
15	Cole Ragans C. Ragans	10.80	83	21	20	.512	66	3.66	461	1	0	0	384.0	312	156	168	35	144	10	1	2	1,585	22	3.38	3.20	0.82	29.1	9.1	1.19	.296	3.94	86	3.16	76	7.31	42.6
16	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
17	Max Scherzer M. Scherzer	10.66	118	50	28	.641	118	3.29	797	2	0	0	673.0	550	246	256	100	161	29	0	1	2,709	15	2.15	4.95	1.34	29.4	5.9	1.06	.277	3.42	80	3.58	84	7.36	48.3
18	Carlos Rodón C. Rodón	10.64	138	64	41	.610	136	3.49	890	2	1	0	753.0	585	292	311	94	249	35	0	1	3,090	34	2.98	3.57	1.12	28.8	8.1	1.11	.269	3.72	85	3.54	84	6.99	56.6
19	Robbie Ray R. Ray	10.52	116	41	35	.539	115	3.74	760	1	0	0	650.1	538	270	284	106	252	22	0	1	2,702	28	3.49	3.02	1.47	28.1	9.3	1.21	.277	3.93	91	4.18	104	7.45	-12.1
20	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
21	Tarik Skubal T. Skubal	10.44	137	54	37	.593	134	3.08	889	1	1	0	766.2	614	262	287	90	172	26	1	0	3,056	11	2.02	5.17	1.06	29.1	5.6	1.03	.279	3.37	75	3.14	76	7.21	84
22	Corbin Burnes C. Burnes	10.31	148	55	33	.625	145	2.86	1,009	0	0	0	881.0	659	280	311	83	249	35	2	1	3,527	38	2.54	4.05	0.85	28.6	7.1	1.03	.268	3.18	69	3.07	74	6.73	108.5
23	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
24	Michael King M. King	10.19	160	31	29	.517	64	3.25	558	1	1	7	492.2	416	178	204	53	172	24	24	6	2,060	12	3.14	3.24	0.97	27.1	8.3	1.19	.290	3.73	79	3.50	84	7.60	36.5
25	Shane McClanahan S. McClanahan	10.14	74	33	16	.673	74	3.02	456	0	0	0	404.2	331	136	143	48	116	5	0	1	1,627	19	2.58	3.93	1.07	28.0	7.1	1.10	.282	3.18	77	3.35	84	7.36	29.1