Mitchell Parker had the lowest K/BB this season, with 1.78 K/BB.

Interpreted as:

lowest k/bb with a minimum of 1 IP per team game by a player this regular season

	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	Mitchell Parker M. Parker	1.78	2025	WSH	33	9	16	.360	30	5.68	103	0	0	1	164.2	178	104	116	25	58	4	2	0	725	3	5.63	3.17	1.37	14.2	8.0	1.43	.286	6.34	136	4.98	119	9.73	-14.6
2	Andre Pallante A. Pallante	1.79	2025	STL	31	6	15	.286	31	5.31	111	0	0	0	162.2	173	96	109	21	62	5	0	0	715	12	6.14	3.43	1.16	15.5	8.7	1.44	.295	6.03	129	4.68	116	9.57	-11.7
3	José Soriano J. Soriano	1.95	2025	LAA	31	10	11	.476	31	4.26	152	0	0	0	169.0	158	80	89	12	78	5	0	0	724	8	8.09	4.15	0.64	21.0	10.8	1.40	.306	4.74	102	3.73	87	8.41	10.6
4	Clay Holmes C. Holmes	1.95	2025	NYM	33	12	8	.600	31	3.53	129	0	0	0	165.2	150	65	74	14	66	13	0	0	708	6	7.01	3.59	0.76	18.2	9.3	1.30	.280	4.02	87	4.10	100	8.15	-0.2
5	Jake Irvin J. Irvin	2.00	2025	WSH	33	9	13	.409	33	5.70	124	0	0	0	180.0	195	114	120	38	62	6	0	0	787	3	6.20	3.10	1.90	15.8	7.9	1.43	.282	6.00	137	5.63	135	9.75	-28.7
6	Gavin Williams G. Williams	2.08	2025	CLE	31	12	5	.706	31	3.06	173	0	0	0	167.2	130	57	62	23	83	3	0	0	704	9	9.29	4.46	1.23	24.6	11.8	1.27	.254	3.33	76	4.39	106	6.98	-4.9
7	Brayan Bello B. Bello	2.10	2025	BOS	29	11	9	.550	28	3.35	124	1	0	0	166.2	147	62	71	16	59	13	0	0	700	5	6.70	3.19	0.86	17.7	8.4	1.24	.268	3.83	77	4.18	99	7.94	0.6
8	David Peterson D. Peterson	2.31	2025	NYM	30	9	6	.600	30	4.22	150	1	1	0	168.2	166	79	84	11	65	7	0	1	723	3	8.00	3.47	0.59	20.7	9.0	1.37	.316	4.48	104	3.48	85	8.86	11.5
9	Yusei Kikuchi Y. Kikuchi	2.35	2025	LAA	33	7	11	.389	33	3.99	174	0	0	0	178.1	180	79	87	24	74	3	0	3	772	8	8.78	3.73	1.21	22.5	9.6	1.42	.314	4.39	96	4.22	98	9.08	1.6
10	José Berríos J. Berríos	2.46	2025	TOR	31	9	5	.643	30	4.17	138	0	0	0	166.0	160	77	86	26	56	7	0	2	698	1	7.48	3.04	1.41	19.8	8.0	1.30	.285	4.66	103	4.64	111	8.67	-8.6
11	Luis Severino L. Severino	2.48	2025	ATH	29	8	11	.421	29	4.54	124	0	0	0	162.2	162	82	93	16	50	16	0	1	705	3	6.86	2.77	0.89	17.6	7.1	1.30	.293	5.15	111	4.10	98	8.96	1.3
12	Sandy Alcantara S. Alcantara	2.49	2025	MIA	31	11	12	.478	31	5.36	142	0	0	0	174.2	165	104	107	22	57	9	0	0	745	8	7.32	2.94	1.13	19.1	7.7	1.27	.278	5.51	125	4.27	103	8.50	-2.7
13	Robbie Ray R. Ray	2.55	2025	SFG	32	11	8	.579	32	3.65	186	1	0	0	182.1	148	74	81	22	73	4	0	0	755	7	9.18	3.60	1.09	24.6	9.7	1.21	.268	4.00	89	3.92	99	7.31	0.6
14	Jeffrey Springs J. Springs	2.56	2025	ATH	32	11	11	.500	30	4.11	138	0	0	0	171.0	153	78	90	28	54	3	0	0	713	0	7.26	2.84	1.47	19.4	7.6	1.21	.255	4.74	100	4.64	111	8.05	-9
15	Will Warren W. Warren	2.63	2025	NYY	33	9	8	.529	33	4.44	171	0	0	0	162.1	158	80	90	22	65	4	0	0	711	2	9.48	3.60	1.22	24.1	9.1	1.37	.303	4.99	109	4.06	94	8.76	4.4
16	Kyle Hendricks K. Hendricks	2.65	2025	LAA	31	8	10	.444	31	4.76	114	0	0	0	164.2	167	87	92	25	43	5	0	3	695	0	6.23	2.35	1.37	16.4	6.2	1.28	.280	5.03	114	4.59	107	9.13	-5.1
17	Zac Gallen Z. Gallen	2.65	2025	AZ	33	13	15	.464	33	4.83	175	0	0	0	192.0	176	103	109	31	66	4	0	1	813	2	8.20	3.09	1.45	21.5	8.1	1.26	.270	5.11	113	4.50	112	8.25	-11
18	Brady Singer B. Singer	2.72	2025	CIN	32	14	12	.538	32	4.03	163	0	0	0	169.2	150	76	80	19	60	14	0	0	716	3	8.65	3.18	1.01	22.8	8.4	1.24	.285	4.24	90	3.97	91	7.96	7.7
19	Ryan Pepiot R. Pepiot	2.74	2025	TBR	31	11	12	.478	31	3.86	167	0	0	0	167.2	134	72	77	26	61	6	0	0	679	5	8.96	3.27	1.40	24.6	9.0	1.16	.258	4.13	98	4.35	108	7.19	-6.1
20	Framber Valdez F. Valdez	2.75	2025	HOU	31	13	11	.542	31	3.66	187	2	0	0	192.0	171	78	82	15	68	7	0	0	802	12	8.77	3.19	0.70	23.3	8.5	1.24	.297	3.84	90	3.37	82	8.02	16.3
21	Shane Baz S. Baz	2.75	2025	TBR	31	10	12	.455	31	4.87	176	0	0	0	166.1	158	90	91	26	64	9	0	0	711	3	9.52	3.46	1.41	24.8	9.0	1.33	.303	4.92	124	4.36	108	8.55	-6.2
22	Nick Martinez N. Martinez	2.76	2025	CIN	40	11	14	.440	26	4.45	116	0	0	0	165.2	158	82	86	22	42	6	2	1	683	6	6.30	2.28	1.20	17.0	6.1	1.21	.274	4.67	100	4.32	99	8.58	1.4
23	Carlos Rodón C. Rodón	2.78	2025	NYY	33	18	9	.667	33	3.09	203	0	0	0	195.1	132	67	74	22	73	9	0	0	789	4	9.35	3.36	1.01	25.7	9.3	1.05	.228	3.41	76	3.77	88	6.08	11.3
24	Michael Wacha M. Wacha	2.80	2025	KCR	31	10	13	.435	31	3.86	126	0	0	0	172.2	166	74	74	15	45	4	0	0	716	2	6.57	2.35	0.78	17.6	6.3	1.22	.287	3.86	90	3.65	87	8.65	10
25	Mitch Keller M. Keller	2.94	2025	PIT	32	6	15	.286	32	4.19	150	0	0	0	176.1	171	82	91	21	51	10	0	0	749	5	7.66	2.60	1.07	20.0	6.8	1.26	.290	4.64	97	4.01	97	8.73	2.3