Chase Burns has the best K/9 with 30.0+ innings pitched this season, with 14.94 per nine innings.

Interpreted as:

top 10 in k/9 by a player this season minimum 30 ip

	NAME	K/9	IP	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	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	Chase Burns C. Burns	14.94	34.1	2025	CIN	8	0	3	.000	8	5.24	57	0	0	0	33	20	23	4	13	0	0	0	151	0	3.41	4.38	1.05	37.7	8.6	1.34	.377	6.03	118	2.43	56	8.65	6.9
2	Fernando Cruz F. Cruz	14.73	33.0	2025	NYY	32	2	3	.400	0	3.00	54	0	0	2	19	11	13	3	14	2	4	0	131	3	3.82	3.86	0.82	41.2	10.7	1.00	.276	3.55	74	2.47	58	5.18	6.5
3	Mason Miller M. Miller	14.63	43.2	2025	TOT	43	1	2	.333	0	3.71	71	0	0	21	25	18	19	5	20	1	33	2	171	3	4.12	3.55	1.03	41.5	11.7	1.03	.270	3.92	92	2.78	67	5.15	6.6
4	Cole Ragans C. Ragans	14.05	48.2	2025	KCR	10	2	3	.400	10	5.18	76	0	0	0	47	28	29	5	16	2	0	0	209	3	2.96	4.75	0.92	36.4	7.7	1.29	.382	5.36	122	2.42	58	8.69	9.4
5	Griffin Jax G. Jax	13.94	51.0	2025	TOT	56	1	6	.143	0	4.76	79	0	0	0	51	27	28	5	15	1	5	2	221	0	2.65	5.27	0.88	35.7	6.8	1.29	.380	4.94	118	2.22	54	9.00	10.9
6	Edwin Díaz E. Díaz	13.30	46.0	2025	NYM	46	5	2	.714	0	1.57	68	0	0	23	25	8	10	3	17	7	35	0	182	6	3.33	4.00	0.59	37.4	9.3	0.91	.253	1.96	39	2.56	63	4.89	7.7
7	Bryan Abreu B. Abreu	13.25	55.0	2025	HOU	54	3	3	.500	0	1.64	81	0	0	1	33	10	10	3	25	3	8	0	224	3	4.09	3.24	0.49	36.2	11.2	1.05	.268	1.64	41	2.39	58	5.40	10.6
8	Jeremiah Estrada J. Estrada	13.01	54.2	2025	SDP	57	4	4	.500	0	2.47	79	0	0	3	37	15	18	5	17	3	6	2	219	2	2.80	4.65	0.82	36.1	7.8	0.99	.278	2.96	61	2.50	62	6.09	9.5
9	Josh Hader J. Hader	12.99	52.2	2025	HOU	48	6	2	.750	0	2.05	76	0	0	28	29	12	16	8	16	2	41	1	206	2	2.73	4.75	1.37	36.9	7.8	0.85	.202	2.73	51	3.22	78	4.96	5.3
10	Brendon Little B. Little	12.99	52.2	2025	TOR	57	4	1	.800	0	3.08	76	0	0	0	35	18	23	2	34	1	2	4	226	4	5.81	2.24	0.34	33.6	15.0	1.31	.292	3.93	77	2.70	65	5.98	8.5
11	Félix Bautista F. Bautista	12.98	34.2	2025	BAL	35	1	1	.500	0	2.60	50	0	0	19	16	10	10	3	23	0	28	0	142	1	5.97	2.17	0.78	35.2	16.2	1.13	.197	2.60	65	3.33	82	4.15	2.9
12	Jacob Misiorowski J. Misiorowski	12.98	34.2	2025	MIL	8	4	1	.800	8	3.89	50	0	0	0	22	15	16	4	17	1	0	0	140	1	4.41	2.94	1.04	35.7	12.1	1.13	.265	4.15	93	3.28	79	5.71	3.3
13	Aroldis Chapman A. Chapman	12.73	46.2	2025	BOS	51	4	2	.667	0	1.16	66	0	0	21	21	6	7	3	13	0	29	0	174	3	2.51	5.08	0.58	37.9	7.5	0.73	.196	1.35	27	1.95	46	4.05	11.6
14	David Bednar D. Bednar	12.72	46.0	2025	TOT	48	3	5	.375	0	2.35	65	0	0	19	37	12	14	3	13	1	38	2	186	3	2.54	5.00	0.59	34.9	7.0	1.09	.327	2.74	55	2.04	49	7.24	10.6
15	Jeff Hoffman J. Hoffman	12.71	51.0	2025	TOR	53	7	4	.636	0	4.24	72	0	0	28	39	24	25	10	16	2	45	1	208	2	2.82	4.50	1.76	34.6	7.7	1.08	.269	4.41	106	3.89	93	6.88	1.5
16	Kirby Yates K. Yates	12.64	31.1	2025	LAD	39	4	3	.571	0	4.31	44	0	0	3	29	15	17	6	12	1	10	0	134	1	3.45	3.67	1.72	32.8	9.0	1.31	.324	4.88	104	4.03	96	8.33	0.5
17	Ronny Henriquez R. Henriquez	12.62	56.1	2025	MIA	54	6	1	.857	0	2.72	79	0	0	6	42	17	20	8	22	3	8	2	235	2	3.51	3.59	1.28	33.6	9.4	1.14	.276	3.20	63	3.48	85	6.71	3.9
18	Edwin Uceta E. Uceta	12.51	54.2	2025	TBR	51	7	2	.778	0	4.28	76	0	0	1	47	26	27	9	20	5	9	3	233	0	3.29	3.80	1.48	32.6	8.6	1.23	.309	4.45	110	3.83	95	7.74	1.2
19	Logan Gilbert L. Gilbert	12.45	89.2	2025	SEA	17	3	4	.429	17	3.31	124	0	0	0	65	33	36	12	23	4	0	0	361	7	2.31	5.39	1.20	34.3	6.4	0.98	.268	3.61	87	2.98	75	6.52	10.4
20	Cade Smith C. Smith	12.33	54.0	2025	CLE	55	5	4	.556	0	2.67	74	0	0	6	41	16	23	2	18	3	12	3	226	2	3.00	4.11	0.33	32.7	8.0	1.09	.302	3.83	67	2.01	49	6.83	12.7
21	Alex Vesia A. Vesia	12.12	49.0	2025	LAD	56	2	2	.500	0	2.76	66	0	0	4	33	15	16	8	17	3	8	3	195	3	3.12	3.88	1.47	33.8	8.7	1.02	.248	2.94	67	3.76	90	6.06	2.3
22	Randy Rodríguez R. Rodríguez	12.08	47.2	2025	SFG	47	3	3	.500	0	1.51	64	0	0	3	30	8	10	3	11	3	12	0	184	2	2.08	5.82	0.57	34.8	6.0	0.86	.262	1.89	37	2.12	54	5.66	9.9
23	Ryan Zeferjahn R. Zeferjahn	12.00	45.0	2025	LAA	50	6	4	.600	1	5.00	60	0	0	2	40	25	26	10	28	2	4	3	203	3	5.60	2.14	2.00	29.6	13.8	1.51	.291	5.20	121	5.33	124	8.00	-5
24	Seranthony Domínguez S. Domínguez	11.96	46.2	2025	TOT	50	2	4	.333	0	3.86	62	0	0	2	37	20	26	4	28	2	11	2	200	11	5.40	2.21	0.77	31.0	14.0	1.39	.317	5.01	97	3.49	85	7.14	3.1
25	Gabe Speier G. Speier	11.96	46.2	2025	SEA	56	2	1	.667	0	2.31	62	0	0	0	33	12	13	4	10	3	3	1	185	1	1.93	6.20	0.77	33.5	5.4	0.92	.274	2.51	61	2.40	60	6.36	8.5