who has the highest k/9 of all-time minimum 660 ip

Aroldis Chapman has the best career K/9 when pitching at least 660 innings, with 14.58 per nine innings.

	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	14.58	820.1	862	59	47	.557	0	2.52	1,329	0	0	367	474	230	255	54	408	33	562	7	3,337	87	4.48	3.26	0.59	39.8	12.2	1.08	.278	2.80	61	2.36	57	5.20	161.3
2	Craig Kimbrel C. Kimbrel	14.04	820.2	850	56	48	.538	0	2.59	1,280	0	0	440	492	236	263	75	346	40	655	11	3,303	70	3.79	3.70	0.82	38.8	10.5	1.02	.267	2.88	63	2.61	64	5.40	131.3
3	Kenley Jansen K. Jansen	12.39	926.1	933	54	40	.574	0	2.57	1,275	0	0	474	610	265	284	88	282	32	699	20	3,677	21	2.74	4.52	0.85	34.7	7.7	0.96	.261	2.76	65	2.63	65	5.93	146.5
4	Billy Wagner B. Wagner	11.92	903.0	853	47	40	.540	0	2.31	1,196	0	0	422	601	232	262	82	300	33	703	26	3,600	43	2.99	3.99	0.82	33.2	8.3	1.00	.261	2.61	54	2.72	63	5.99	159
5	David Robertson D. Robertson	11.85	892.1	879	68	46	.596	1	2.94	1,175	0	0	178	673	291	315	81	364	25	357	38	3,682	57	3.67	3.23	0.82	31.9	9.9	1.16	.291	3.18	70	2.97	70	6.79	122.1
6	Tyler Glasnow T. Glasnow	11.37	751.0	166	43	36	.544	127	3.75	949	0	0	0	572	313	333	94	289	13	9	5	3,072	63	3.46	3.28	1.13	30.9	9.4	1.15	.277	3.99	91	3.48	83	6.85	58.8
7	Blake Snell B. Snell	11.19	1158.0	222	81	62	.566	222	3.15	1,440	1	1	0	891	405	440	111	521	11	0	6	4,791	86	4.05	2.76	0.86	30.1	10.9	1.22	.288	3.42	77	3.31	79	6.92	111.8
8	Freddy Peralta F. Peralta	11.14	929.0	210	70	42	.625	161	3.58	1,150	1	0	1	691	370	391	117	360	48	6	3	3,844	31	3.49	3.19	1.13	29.9	9.4	1.13	.265	3.79	85	3.65	86	6.69	59.8
9	Chris Sale C. Sale	11.13	2078.1	392	144	88	.621	312	3.01	2,570	16	3	12	1,688	696	749	213	485	130	25	15	8,367	48	2.10	5.30	0.92	30.7	5.8	1.05	.297	3.24	71	2.88	69	7.31	301.4
10	Armando Benitez A. Benitez	10.93	779.0	762	40	47	.460	0	3.13	946	0	0	289	545	271	296	95	403	16	527	32	3,253	18	4.66	2.35	1.10	29.1	12.4	1.22	.251	3.42	72	3.86	88	6.30	48.8
11	Dylan Cease D. Cease	10.91	1015.1	188	65	58	.528	188	3.88	1,231	3	3	0	854	438	482	121	430	35	0	9	4,304	55	3.81	2.86	1.07	28.6	10.0	1.26	.295	4.27	92	3.66	85	7.57	67.7
12	Robbie Ray R. Ray	10.83	1441.0	265	88	81	.521	261	3.94	1,734	2	1	0	1,250	631	674	216	608	51	1	19	6,097	60	3.80	2.85	1.35	28.4	10.0	1.29	.296	4.21	94	4.06	99	7.81	5.1
13	Jacob deGrom J. deGrom	10.82	1539.2	248	96	65	.596	248	2.57	1,851	4	2	0	1,173	440	477	146	345	25	0	13	6,045	30	2.02	5.37	0.85	30.6	5.7	0.99	.279	2.79	66	2.70	66	6.86	239.5
14	Octavio Dotel O. Dotel	10.82	951.0	758	59	50	.541	34	3.78	1,143	0	0	109	765	399	431	117	412	41	305	39	4,024	46	3.90	2.77	1.11	28.4	10.2	1.24	.280	4.08	86	3.69	84	7.24	73.6
15	Andrew Miller A. Miller	10.63	829.0	612	55	55	.500	66	4.03	979	0	0	63	732	371	413	80	383	61	147	14	3,619	44	4.16	2.56	0.87	27.1	10.6	1.34	.308	4.48	95	3.63	87	7.95	49.8
16	Raisel Iglesias R. Iglesias	10.62	734.0	598	42	55	.433	21	2.93	866	0	0	252	569	239	265	83	201	27	457	17	2,954	17	2.46	4.31	1.02	29.3	6.8	1.05	.273	3.25	69	3.20	76	6.98	82.2
17	Randy Johnson R. Johnson	10.61	4135.1	618	303	166	.646	603	3.29	4,875	100	37	2	3,346	1,513	1,703	411	1,497	190	7	37	17,067	109	3.26	3.26	0.89	28.6	8.8	1.17	.291	3.71	75	3.18	73	7.28	554.3
18	Max Scherzer M. Scherzer	10.60	2963.0	483	220	117	.653	474	3.22	3,489	12	5	0	2,433	1,059	1,132	354	779	114	2	20	11,987	80	2.37	4.48	1.08	29.1	6.5	1.08	.287	3.44	77	3.23	78	7.39	302.5
19	Stephen Strasburg S. Strasburg	10.55	1470.0	247	113	62	.646	247	3.24	1,723	2	2	0	1,217	530	582	149	394	53	0	20	5,962	44	2.41	4.37	0.91	28.9	6.6	1.10	.293	3.56	80	3.01	75	7.45	165.9
20	Francisco Rodriguez F. Rodriguez	10.53	976.0	948	52	53	.495	0	2.86	1,142	0	0	437	738	310	336	98	389	17	677	42	4,011	68	3.59	2.94	0.90	28.5	9.7	1.15	.271	3.10	69	3.30	79	6.81	97
21	Brandon Woodruff B. Woodruff	10.52	745.0	142	53	28	.654	127	3.10	871	2	1	1	580	257	269	84	190	32	4	1	2,984	8	2.30	4.58	1.01	29.2	6.4	1.03	.274	3.25	73	3.19	75	7.01	89
22	Yu Darvish Y. Darvish	10.51	1773.0	296	114	93	.551	296	3.65	2,071	2	1	0	1,454	719	754	229	561	83	0	8	7,285	83	2.85	3.69	1.16	28.4	7.7	1.14	.282	3.83	87	3.57	85	7.38	122.2
23	Ugueth Urbina U. Urbina	10.51	697.1	583	44	49	.473	21	3.45	814	0	0	237	539	267	289	86	307	6	408	30	2,918	29	3.96	2.65	1.11	27.9	10.5	1.21	.266	3.73	78	3.69	85	6.96	51.2
24	Tarik Skubal T. Skubal	10.44	766.2	137	54	37	.593	134	3.08	889	1	1	0	614	262	287	90	172	26	1	0	3,056	11	2.02	5.17	1.06	29.1	5.6	1.03	.279	3.37	75	3.14	76	7.21	84.1
25	Adam Ottavino A. Ottavino	10.42	744.2	727	41	43	.488	3	3.48	862	0	0	46	628	288	308	72	330	50	168	32	3,167	66	3.99	2.61	0.87	27.2	10.4	1.29	.300	3.72	79	3.61	85	7.59	49.8