Since 2018, Spencer Strider has the best K/9, with 12.38 per nine innings.

Interpreted as:

MLB k/9 with a minimum of 0.5 IP per team game leaders since 2018

	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	Chris Sale C. Sale	12.17	133	54	30	.643	132	3.06	1,027	1	1	0	759.2	605	258	279	76	184	59	0	1	3,074	16	2.18	5.58	0.90	33.4	6.0	1.04	.306	3.31	68	2.73	65	7.17	125.7
3	Tyler Glasnow T. Glasnow	11.74	145	41	27	.603	111	3.35	872	0	0	0	668.2	472	249	259	79	233	8	9	3	2,675	58	3.14	3.74	1.06	32.6	8.7	1.05	.265	3.49	82	3.19	77	6.35	73.5
4	Jacob deGrom J. deGrom	11.73	141	51	33	.607	141	2.25	1,120	2	1	0	859.0	585	215	234	80	169	17	0	4	3,298	12	1.77	6.63	0.84	34.0	5.1	0.88	.264	2.45	56	2.42	58	6.13	169.7
5	Blake Snell B. Snell	11.71	179	70	47	.598	179	2.99	1,223	1	1	0	939.2	685	312	331	91	411	11	0	5	3,843	72	3.94	2.98	0.87	31.8	10.7	1.17	.282	3.17	73	3.18	76	6.56	103.6
6	Gerrit Cole G. Cole	11.65	190	94	38	.712	190	2.97	1,517	7	5	0	1171.2	878	386	413	150	297	29	0	2	4,634	26	2.28	5.11	1.15	32.7	6.4	1.00	.276	3.17	71	3.09	72	6.74	156.1
7	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
8	Max Scherzer M. Scherzer	11.31	178	79	42	.653	178	3.07	1,340	4	1	0	1066.0	844	364	381	141	245	48	0	7	4,268	19	2.07	5.47	1.19	31.4	5.7	1.02	.282	3.22	74	3.20	75	7.13	123
9	Trevor Bauer T. Bauer	11.25	90	36	28	.563	89	3.07	711	4	3	1	569.0	430	194	222	71	193	34	1	4	2,338	28	3.05	3.68	1.12	30.4	8.3	1.09	.270	3.51	69	3.50	79	6.80	57.4
10	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
11	Freddy Peralta F. Peralta	11.15	211	70	42	.625	162	3.59	1,153	1	0	1	931.0	694	371	392	118	360	48	6	3	3,853	31	3.48	3.20	1.14	29.9	9.3	1.13	.265	3.79	85	3.66	87	6.71	59.2
12	Robbie Ray R. Ray	11.01	173	59	45	.567	172	3.87	1,160	1	0	0	948.1	785	408	430	155	406	32	0	9	3,975	40	3.85	2.86	1.47	29.2	10.2	1.26	.284	4.08	93	4.22	103	7.45	-15.7
13	Dylan Cease D. Cease	10.91	188	65	58	.528	188	3.88	1,231	3	3	0	1015.1	854	438	482	121	430	35	0	9	4,304	55	3.81	2.86	1.07	28.6	10.0	1.26	.295	4.27	93	3.66	85	7.57	67.6
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	Brandon Woodruff B. Woodruff	10.76	134	51	25	.671	119	3.00	839	2	1	1	702.0	537	234	246	79	176	29	4	0	2,800	8	2.26	4.77	1.01	30.0	6.3	1.02	.273	3.15	71	3.11	73	6.88	88.9
18	Stephen Strasburg S. Strasburg	10.57	63	29	17	.630	63	3.77	435	0	0	0	370.1	311	155	163	48	111	20	0	8	1,526	14	2.70	3.92	1.17	28.5	7.3	1.14	.288	3.96	88	3.58	83	7.56	31
19	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
20	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
21	Corbin Burnes C. Burnes	10.36	210	63	38	.624	149	3.15	1,114	0	0	2	968.0	756	339	374	104	280	38	16	3	3,914	42	2.60	3.98	0.97	28.5	7.2	1.07	.274	3.48	75	3.25	78	7.03	100.7
22	Jack Flaherty J. Flaherty	10.31	184	63	54	.538	179	3.74	1,110	0	0	0	969.1	813	403	425	131	341	53	0	9	4,026	35	3.17	3.26	1.22	27.6	8.5	1.19	.285	3.95	92	3.86	93	7.55	31.3
23	Charlie Morton C. Morton	10.28	229	87	56	.608	223	3.89	1,403	0	0	0	1228.0	1,068	531	566	141	472	111	1	6	5,210	28	3.46	2.97	1.03	26.9	9.1	1.25	.301	4.15	93	3.80	92	7.83	49.4
24	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
25	Carlos Rodón C. Rodón	10.17	165	73	51	.589	163	3.65	1,026	2	1	0	908.1	715	368	394	113	321	48	0	2	3,759	43	3.18	3.20	1.12	27.3	8.5	1.14	.267	3.90	88	3.73	88	7.08	51.8