Tarik Skubal had the highest K/BB this season, with 7.30 K/BB.

Interpreted as:

K/BB with a minimum of 1 IP per team game leaders 2025

	NAME	K/BB	SEASON	TM	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	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Tarik Skubal T. Skubal	7.30	2025	DET	31	13	6	.684	31	2.21	241	1	1	0	195.1	141	48	55	18	33	5	0	0	748	3	11.10	1.52	0.83	32.2	4.4	0.89	.273	2.53	55	2.44	59	6.50	36.9
2	Garrett Crochet G. Crochet	5.54	2025	BOS	32	18	5	.783	32	2.59	255	1	1	0	205.1	165	59	62	24	46	3	0	0	814	7	11.18	2.02	1.05	31.3	5.7	1.03	.290	2.72	60	2.88	68	7.23	30.2
3	Bryan Woo B. Woo	5.50	2025	SEA	30	15	7	.682	30	2.94	198	0	0	0	186.2	137	61	64	26	36	4	0	0	731	3	9.55	1.74	1.25	27.1	4.9	0.93	.238	3.09	77	3.46	86	6.61	11.4
4	Sonny Gray S. Gray	5.29	2025	STL	32	14	8	.636	32	4.28	201	1	1	0	180.2	185	86	93	25	38	3	0	0	753	2	10.01	1.89	1.25	26.7	5.0	1.23	.329	4.63	104	3.38	84	9.22	13.5
5	Paul Skenes P. Skenes	5.14	2025	PIT	32	10	10	.500	32	1.97	216	1	0	0	187.2	136	41	45	11	42	6	0	0	733	2	10.36	2.01	0.53	29.5	5.7	0.95	.273	2.16	46	2.36	57	6.52	37
6	Jacob deGrom J. deGrom	5.00	2025	TEX	30	12	8	.600	30	2.97	185	0	0	0	172.2	122	57	57	26	37	3	0	0	669	3	9.64	1.93	1.36	27.7	5.5	0.92	.230	2.97	73	3.64	86	6.36	11.7
7	Joe Ryan J. Ryan	4.97	2025	MIN	31	13	10	.565	30	3.42	194	0	0	0	171.0	138	65	69	26	39	12	0	0	689	0	10.21	2.05	1.37	28.2	5.7	1.04	.268	3.63	84	3.73	89	7.26	8.4
8	Logan Webb L. Webb	4.87	2025	SFG	34	15	11	.577	34	3.22	224	0	0	0	207.0	210	74	82	14	46	6	0	0	856	2	9.74	2.00	0.61	26.2	5.4	1.24	.346	3.57	79	2.60	65	9.13	32.5
9	Cristopher Sánchez C. Sánchez	4.82	2025	PHI	32	13	5	.722	32	2.50	212	1	0	0	202.0	171	56	58	12	44	6	0	0	807	6	9.45	1.96	0.53	26.3	5.5	1.06	.298	2.58	59	2.54	60	7.62	36.9
10	Zack Littell Z. Littell	4.06	2025	TOT	32	10	8	.556	32	3.81	130	1	0	0	186.2	174	79	81	36	32	7	0	1	759	3	6.27	1.54	1.74	17.1	4.2	1.10	.249	3.91	93	4.87	118	8.39	-15.4
11	Brandon Pfaadt B. Pfaadt	3.97	2025	AZ	33	13	9	.591	33	5.25	147	0	0	0	176.2	198	103	107	26	37	12	0	2	767	3	7.49	1.88	1.32	19.2	4.8	1.33	.316	5.45	123	4.21	105	10.09	-4.3
12	Nick Pivetta N. Pivetta	3.80	2025	SDP	31	13	5	.722	31	2.87	190	0	0	0	181.2	129	58	63	22	50	3	0	1	721	1	9.41	2.48	1.09	26.4	6.9	0.99	.235	3.12	71	3.49	85	6.39	12.2
13	Jesús Luzardo J. Luzardo	3.79	2025	PHI	32	15	7	.682	32	3.92	216	0	0	0	183.2	167	80	85	16	57	3	0	0	758	2	10.58	2.79	0.78	28.5	7.5	1.22	.324	4.17	93	2.89	69	8.18	26.7
14	Kevin Gausman K. Gausman	3.78	2025	TOR	32	10	11	.476	32	3.59	189	1	1	0	193.0	155	77	79	21	50	3	0	2	775	1	8.81	2.33	0.98	24.4	6.5	1.06	.262	3.68	89	3.41	82	7.23	16.4
15	Max Fried M. Fried	3.71	2025	NYY	32	19	5	.792	32	2.86	189	0	0	0	195.1	164	62	73	14	51	10	0	0	801	8	8.71	2.35	0.65	23.6	6.4	1.10	.279	3.36	70	3.06	71	7.56	26.2
16	Matthew Boyd M. Boyd	3.67	2025	CHC	31	14	8	.636	31	3.21	154	0	0	0	179.2	154	64	69	19	42	9	0	0	718	2	7.71	2.10	0.95	21.4	5.8	1.09	.273	3.46	78	3.64	90	7.71	8.2
17	Hunter Brown H. Brown	3.61	2025	HOU	31	12	9	.571	31	2.43	206	1	0	0	185.1	133	50	55	17	57	7	0	1	729	0	10.00	2.77	0.83	28.3	7.8	1.03	.262	2.67	60	3.13	76	6.46	20.6
18	Luis Castillo L. Castillo	3.52	2025	SEA	32	11	8	.579	32	3.54	162	0	0	0	180.2	168	71	76	23	46	7	0	0	745	3	8.07	2.29	1.15	21.7	6.2	1.18	.286	3.79	92	3.87	97	8.37	2.5
19	Merrill Kelly M. Kelly	3.48	2025	TOT	32	12	9	.571	32	3.52	167	0	0	0	184.0	157	72	79	23	48	2	0	0	748	1	8.17	2.35	1.13	22.3	6.4	1.11	.264	3.86	84	3.75	92	7.68	6.8
20	Andrew Abbott A. Abbott	3.47	2025	CIN	29	10	7	.588	29	2.87	149	1	1	0	166.1	148	53	60	19	43	3	0	0	684	4	8.06	2.33	1.03	21.8	6.3	1.15	.274	3.25	64	3.65	83	8.01	13.1
21	Yoshinobu Yamamoto Y. Yamamoto	3.41	2025	LAD	30	12	8	.600	30	2.49	201	0	0	0	173.2	113	48	53	14	59	3	0	0	684	5	10.42	3.06	0.73	29.4	8.6	0.99	.243	2.75	60	2.93	70	5.86	24.4
22	Kyle Freeland K. Freeland	3.26	2025	COL	31	5	17	.227	31	4.98	124	0	0	0	162.2	193	90	105	22	38	6	0	2	709	2	6.86	2.10	1.22	17.5	5.4	1.42	.329	5.81	105	4.17	96	10.68	3.2
23	Chris Bassitt C. Bassitt	3.19	2025	TOR	32	11	9	.550	31	3.96	166	1	0	0	170.1	174	75	80	22	52	13	0	0	736	4	8.77	2.75	1.16	22.6	7.1	1.33	.315	4.23	98	4.00	96	9.19	3.2
24	Dean Kremer D. Kremer	3.16	2025	BAL	31	11	10	.524	29	4.19	142	0	0	0	171.2	163	80	83	22	45	2	0	0	708	9	7.44	2.36	1.15	20.1	6.4	1.21	.284	4.35	105	3.96	97	8.55	2.3
25	Freddy Peralta F. Peralta	3.09	2025	MIL	33	17	6	.739	33	2.70	204	0	0	0	176.2	124	53	54	21	66	9	0	0	723	4	10.39	3.36	1.07	28.2	9.1	1.08	.243	2.75	64	3.64	87	6.32	10.5