highest strikeouts per 9 innings with a minimum of 30 ip ever

Aroldis Chapman has the highest career K/9 when pitching at least 30 innings, with 14.74 per nine innings.

Interpreted as:

highest strikeouts per 9 innings by a player with a minimum of 30 ip ever

	NAME	K/9	IP	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	Aroldis Chapman A. Chapman	14.74	771.1	809	57	45	.559	0	2.61	1,263	0	0	339	454	224	248	52	397	33	527	7	3,158	82	4.63	3.18	0.61	40.0	12.6	1.10	.285	2.89	64	2.41	58	5.30	147.3
2	Edwin Díaz E. Díaz	14.70	467.0	472	23	33	.411	0	3.03	763	0	0	233	329	157	169	52	168	34	357	9	1,906	30	3.24	4.54	1.00	40.0	8.8	1.06	.312	3.26	75	2.63	63	6.34	80.2
3	Josh Hader J. Hader	14.66	474.2	433	29	29	.500	0	2.67	773	0	0	206	262	141	151	58	185	22	292	5	1,870	18	3.51	4.18	1.10	41.3	9.9	0.94	.245	2.86	65	2.81	67	4.97	74.1
4	Michel Otañez M. Otañez	14.56	34.0	36	1	0	1.000	0	3.44	55	0	0	1	27	13	15	2	20	3	6	0	151	6	5.29	2.75	0.53	36.4	13.2	1.38	.352	3.97	89	2.72	69	7.15	4.8
5	Dellin Betances D. Betances	14.45	394.1	374	21	23	.477	1	2.53	633	0	0	36	240	111	124	26	183	28	86	5	1,613	28	4.18	3.46	0.59	39.2	11.3	1.07	.288	2.83	61	2.39	56	5.48	78.8
6	Devin Williams D. Williams	14.12	247.1	255	27	12	.692	0	2.22	388	0	0	72	142	61	78	15	122	12	105	3	1,010	14	4.44	3.18	0.55	38.4	12.1	1.07	.268	2.84	53	2.45	57	5.17	49.5
7	Craig Kimbrel C. Kimbrel	14.06	809.2	837	56	47	.544	0	2.59	1,265	0	0	440	482	233	259	73	339	40	651	11	3,257	70	3.77	3.73	0.81	38.8	10.4	1.01	.266	2.88	63	2.58	63	5.36	131.9
8	Darwinzon Hernandez D. Hernandez	14.03	85.1	91	3	4	.429	1	5.06	133	0	0	0	75	48	54	10	73	11	9	1	412	8	7.70	1.82	1.05	32.3	17.7	1.73	.351	5.70	113	4.53	106	7.91	-1.3
9	Fernando Cruz F. Cruz	13.85	167.0	158	5	11	.313	7	4.15	257	0	0	2	125	77	83	17	79	4	25	2	705	15	4.26	3.25	0.92	36.5	11.2	1.22	.310	4.47	93	2.92	66	6.74	26.7
10	Félix Bautista F. Bautista	13.83	136.2	131	12	6	.667	0	1.84	210	0	0	54	73	28	34	11	55	3	86	1	531	10	3.62	3.82	0.72	39.5	10.4	0.94	.246	2.24	47	2.42	61	4.81	24.7
11	James Karinchak J. Karinchak	13.74	165.2	174	12	11	.522	0	3.10	253	0	0	15	98	57	64	18	98	6	48	2	697	15	5.32	2.58	0.98	36.3	14.1	1.18	.248	3.48	74	3.42	82	5.32	14
12	Angel Perdomo A. Perdomo	13.67	52.0	56	4	2	.667	0	5.54	79	0	0	0	38	32	35	7	37	7	17	6	231	1	6.40	2.14	1.21	34.2	16.0	1.44	.307	6.06	128	4.46	103	6.58	-0.7
13	Mason Miller M. Miller	13.50	112.0	79	2	6	.250	6	3.13	168	0	0	38	68	39	45	10	43	5	56	3	443	8	3.46	3.91	0.80	37.9	9.7	0.99	.267	3.62	79	2.62	65	5.46	17.9
14	Spencer Strider S. Strider	13.45	334.2	68	31	11	.738	55	3.47	500	0	0	0	249	129	137	33	110	13	3	2	1,363	12	2.96	4.55	0.89	36.7	8.1	1.07	.306	3.68	81	2.59	62	6.70	58.4
15	Brad Wieck B. Wieck	13.42	59.2	65	2	2	.500	0	3.77	89	0	0	0	42	25	26	10	24	3	10	0	248	1	3.62	3.71	1.51	35.9	9.7	1.11	.262	3.92	89	3.74	86	6.34	3.7
16	Josh James J. James	13.33	106.2	73	8	1	.889	6	4.64	158	0	0	1	80	55	57	18	61	8	24	0	461	10	5.15	2.59	1.52	34.3	13.2	1.32	.287	4.81	105	4.36	99	6.75	0.5
17	Jeremiah Estrada J. Estrada	13.26	95.0	97	7	4	.636	0	3.22	140	0	0	1	72	34	36	11	42	0	23	2	401	7	3.98	3.33	1.04	34.9	10.5	1.20	.293	3.41	80	3.04	74	6.82	10.6
18	Dillon Maples D. Maples	13.01	54.2	59	3	0	1.000	0	5.10	79	0	0	0	35	31	33	6	50	14	16	0	258	8	8.23	1.58	0.99	30.6	19.4	1.55	.266	5.43	121	5.22	123	5.76	-6
19	Austin Adams A. Adams	12.89	155.2	188	7	7	.500	2	4.10	223	0	0	0	110	71	80	11	98	44	32	4	705	18	5.67	2.28	0.64	31.6	13.9	1.34	.301	4.63	100	3.97	95	6.36	4.1
20	Kenley Jansen K. Jansen	12.61	877.2	882	49	37	.570	0	2.60	1,230	0	0	453	584	254	272	83	265	31	661	18	3,486	21	2.72	4.64	0.85	35.3	7.6	0.97	.267	2.79	66	2.57	63	5.99	143.3
21	Kirby Yates K. Yates	12.61	427.2	441	29	22	.569	0	3.16	599	0	0	95	306	150	163	56	169	29	199	13	1,771	18	3.56	3.54	1.18	33.8	9.5	1.11	.272	3.43	77	3.46	83	6.44	33.8
22	Matt Brash M. Brash	12.44	123.0	119	13	8	.619	5	3.59	170	0	0	4	113	49	51	6	63	9	10	1	538	14	4.61	2.70	0.44	31.6	11.7	1.43	.369	3.73	93	2.82	71	8.27	16.5
23	Jake Cousins J. Cousins	12.41	90.2	88	5	2	.714	0	2.78	125	0	0	1	56	28	32	10	57	11	19	3	384	12	5.66	2.19	0.99	32.6	14.8	1.25	.254	3.18	67	4.09	96	5.56	1.4
24	Andrés Muñoz A. Muñoz	12.36	214.0	216	10	20	.333	0	2.44	294	0	0	52	136	58	67	15	84	12	90	11	856	12	3.53	3.50	0.63	34.3	9.8	1.03	.268	2.82	63	2.67	67	5.72	31.9
25	Andrew Nardi A. Nardi	12.35	121.2	135	12	4	.750	0	4.51	167	0	0	3	114	61	64	19	53	5	19	3	530	2	3.92	3.15	1.41	31.5	10.0	1.37	.332	4.73	107	3.91	94	8.43	3.6