MacKenzie Gore has the best K/9 this season, with 12.61 per nine innings.

Interpreted as:

strikeouts per 9 with a minimum of 1 IP per team game leaders 2025

	NAME	K/9	SEASON	TM	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	MacKenzie Gore M. Gore	12.61	2025	WSH	14	3	5	.375	14	2.88	114	0	0	0	81.1	69	26	26	9	22	3	0	0	328	4	2.43	5.18	1.00	34.8	6.7	1.12	.333	2.88	72	2.62	66	7.64	12.4
2	Chris Sale C. Sale	11.94	2025	ATL	14	4	4	.500	14	2.79	107	0	0	0	80.2	73	25	27	7	25	7	0	0	338	2	2.79	4.28	0.78	31.7	7.4	1.21	.344	3.01	69	2.73	70	8.14	10.5
3	Dylan Cease D. Cease	11.42	2025	SDP	14	2	5	.286	14	4.28	96	0	0	0	75.2	69	36	38	8	29	1	0	1	321	2	3.45	3.31	0.95	29.9	9.0	1.30	.326	4.52	111	3.09	79	8.21	7
4	Tarik Skubal T. Skubal	11.34	2025	DET	13	6	2	.750	13	2.16	105	1	1	0	83.1	61	20	20	6	7	3	0	0	314	1	0.76	15.00	0.65	33.4	2.2	0.82	.285	2.16	55	1.84	46	6.59	20.3
5	Garrett Crochet G. Crochet	11.25	2025	BOS	14	6	4	.600	14	2.35	110	0	0	0	88.0	67	23	26	8	27	0	0	0	352	0	2.76	4.07	0.82	31.3	7.7	1.07	.285	2.66	56	2.67	65	6.85	13.9
6	Zack Wheeler Z. Wheeler	11.09	2025	PHI	13	6	2	.750	13	2.85	101	0	0	0	82.0	55	26	26	10	19	2	0	0	316	1	2.09	5.32	1.10	32.0	6.0	0.90	.245	2.85	71	2.96	73	6.04	9.8
7	Carlos Rodón C. Rodón	10.95	2025	NYY	14	8	4	.667	14	2.87	103	0	0	0	84.2	50	27	29	10	30	1	0	0	332	2	3.19	3.43	1.06	31.0	9.0	0.94	.213	3.08	72	3.27	78	5.31	8.5
8	Jack Flaherty J. Flaherty	10.72	2025	DET	13	5	6	.455	13	3.41	85	0	0	0	71.1	53	27	28	11	23	2	0	0	286	0	2.90	3.70	1.39	29.7	8.0	1.07	.255	3.53	86	3.74	93	6.69	2.2
9	Hunter Brown H. Brown	10.59	2025	HOU	13	8	3	.727	13	1.82	93	1	0	0	79.0	51	16	17	6	25	1	0	0	299	0	2.85	3.72	0.68	31.1	8.4	0.96	.259	1.94	46	2.69	67	5.81	11.8
10	Yoshinobu Yamamoto Y. Yamamoto	10.51	2025	LAD	13	6	4	.600	13	2.20	86	0	0	0	73.2	49	18	21	6	25	2	0	0	291	4	3.05	3.44	0.73	29.6	8.6	1.00	.250	2.57	56	2.89	72	5.99	9.3
11	Logan Webb L. Webb	10.41	2025	SFG	14	5	5	.500	14	2.58	101	0	0	0	87.1	84	25	29	5	17	1	0	0	355	1	1.75	5.94	0.52	28.5	4.8	1.16	.342	2.99	66	2.12	56	8.66	16.9
12	Cristopher Sánchez C. Sánchez	10.28	2025	PHI	13	5	2	.714	13	3.10	83	0	0	0	72.2	66	25	26	7	28	4	0	0	308	4	3.47	2.96	0.87	26.9	9.1	1.29	.317	3.22	77	3.35	83	8.17	5.5
13	Jesús Luzardo J. Luzardo	10.28	2025	PHI	13	5	2	.714	13	4.46	83	0	0	0	72.2	81	36	39	6	24	1	0	0	314	1	2.97	3.46	0.74	26.4	7.6	1.44	.375	4.83	111	2.89	71	10.03	9.2
14	Robbie Ray R. Ray	10.13	2025	SFG	13	8	1	.889	13	2.44	87	0	0	0	77.1	52	21	21	6	31	0	0	0	306	3	3.61	2.81	0.70	28.4	10.1	1.07	.253	2.44	63	3.03	80	6.05	6.8
15	Joe Ryan J. Ryan	10.11	2025	MIN	13	7	2	.778	12	2.96	82	0	0	0	73.0	53	24	25	9	15	9	0	0	290	0	1.85	5.47	1.11	28.3	5.2	0.93	.251	3.08	74	3.41	84	6.53	5.3
16	Nick Pivetta N. Pivetta	9.83	2025	SDP	13	6	2	.750	13	3.48	79	0	0	0	72.1	59	28	30	8	21	1	0	0	294	0	2.61	3.76	1.00	26.9	7.1	1.11	.276	3.73	90	3.23	82	7.34	5.6
17	Luis L. Ortiz L. L. Ortiz	9.82	2025	CLE	13	3	7	.300	13	4.26	76	0	0	0	69.2	67	33	34	9	34	0	0	0	302	0	4.39	2.24	1.16	25.2	11.3	1.45	.317	4.39	108	4.03	100	8.66	-0.1
18	Sonny Gray S. Gray	9.68	2025	STL	13	7	1	.875	13	3.35	81	0	0	0	75.1	71	28	30	9	14	2	0	0	306	1	1.67	5.79	1.08	26.5	4.6	1.13	.310	3.58	85	3.11	80	8.48	6.6
19	Grant Holmes G. Holmes	9.49	2025	ATL	14	3	5	.375	13	4.07	77	0	0	0	73.0	57	33	33	13	32	2	1	0	303	2	3.95	2.41	1.60	25.4	10.6	1.22	.246	4.07	100	4.67	120	7.03	-6.6
20	Nathan Eovaldi N. Eovaldi	9.48	2025	TEX	12	4	3	.571	12	1.56	73	1	1	0	69.1	46	12	14	4	10	4	0	0	266	4	1.30	7.30	0.52	27.4	3.8	0.81	.240	1.82	39	2.32	56	5.97	13.9
21	Kris Bubic K. Bubic	9.44	2025	KCR	12	5	3	.625	12	1.43	79	0	0	0	75.1	53	12	14	3	22	2	0	1	294	1	2.63	3.59	0.36	26.9	7.5	1.00	.266	1.67	34	2.44	60	6.33	13.6
22	Freddy Peralta F. Peralta	9.12	2025	MIL	14	5	4	.556	14	2.69	78	0	0	0	77.0	58	23	24	9	31	3	0	0	319	3	3.62	2.52	1.05	24.5	9.7	1.16	.247	2.81	67	3.88	97	6.78	1
23	Paul Skenes P. Skenes	9.10	2025	PIT	14	4	6	.400	14	1.88	92	1	0	0	91.0	56	19	22	5	20	2	0	0	345	1	1.98	4.60	0.49	26.7	5.8	0.84	.226	2.18	46	2.48	63	5.54	14.9
24	Framber Valdez F. Valdez	8.89	2025	HOU	13	6	4	.600	13	3.07	84	2	0	0	85.0	63	29	29	6	27	3	0	0	335	3	2.86	3.11	0.64	25.1	8.1	1.06	.265	3.07	78	3.07	76	6.67	9.1
25	Chris Bassitt C. Bassitt	8.74	2025	TOR	14	7	3	.700	14	3.70	78	0	0	0	80.1	86	33	34	10	19	4	0	0	346	2	2.13	4.11	1.12	22.5	5.5	1.31	.323	3.81	94	3.60	89	9.63	4.1