who has the highest career k/bb ratio since 1969 min 1000 ip

Since 1969, Jacob deGrom has the highest K/BB when pitching at least 1000 innings, with 5.37 K/BB.

	NAME	K/BB	IP	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	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	Jacob deGrom J. deGrom	5.37	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	10.82	2.02	0.85	30.6	5.7	0.99	.279	2.79	66	2.70	66	6.86	239.5
2	Chris Sale C. Sale	5.30	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	11.13	2.10	0.92	30.7	5.8	1.05	.297	3.24	71	2.88	69	7.31	301.4
3	Josh Tomlin J. Tomlin	4.81	1067.0	286	69	56	.552	150	4.77	736	5	1	2	1,160	566	602	197	153	25	55	16	4,453	28	6.21	1.29	1.66	16.5	3.4	1.23	.288	5.08	114	4.64	112	9.78	-57
4	Masahiro Tanaka M. Tanaka	4.76	1054.1	174	78	46	.629	173	3.74	991	7	4	0	983	438	476	159	208	26	0	1	4,299	32	8.46	1.78	1.36	23.1	4.8	1.13	.283	4.06	88	3.90	89	8.39	53.3
5	Corey Kluber C. Kluber	4.69	1641.2	271	116	77	.601	260	3.44	1,725	18	8	1	1,486	627	684	177	368	65	4	9	6,688	31	9.46	2.02	0.97	25.8	5.5	1.13	.301	3.75	83	3.22	78	8.15	161.7
6	Gerrit Cole G. Cole	4.50	1954.0	317	153	80	.657	317	3.18	2,251	8	5	0	1,627	690	740	217	500	61	0	8	7,861	58	10.37	2.30	1.00	28.6	6.4	1.09	.292	3.41	79	3.16	77	7.49	213.5
7	Max Scherzer M. Scherzer	4.48	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	10.60	2.37	1.08	29.1	6.5	1.08	.287	3.44	77	3.23	78	7.39	302.5
8	Curt Schilling C. Schilling	4.38	3261.0	569	216	146	.597	436	3.46	3,116	83	20	22	2,998	1,253	1,318	347	711	52	81	43	13,284	72	8.60	1.96	0.96	23.5	5.4	1.14	.293	3.64	80	3.22	76	8.27	373.6
9	Stephen Strasburg S. Strasburg	4.37	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	10.55	2.41	0.91	28.9	6.6	1.10	.293	3.56	80	3.01	75	7.45	165.9
10	Michael Pineda M. Pineda	4.37	1008.2	181	64	61	.512	180	4.06	966	1	0	0	990	455	488	144	221	24	0	4	4,189	37	8.62	1.97	1.28	23.1	5.3	1.20	.299	4.35	98	3.80	90	8.83	49
11	Clayton Kershaw C. Kershaw	4.28	2850.0	454	222	96	.698	450	2.54	3,045	25	15	0	2,189	804	881	235	712	46	1	28	11,258	107	9.62	2.25	0.74	27.0	6.3	1.02	.271	2.78	65	2.85	70	6.91	373.3
12	Zach Eflin Z. Eflin	4.17	1073.2	200	68	67	.504	188	4.28	922	5	3	1	1,106	511	550	162	221	32	5	14	4,501	14	7.73	1.85	1.36	20.5	4.9	1.24	.298	4.61	103	4.13	97	9.27	14
13	Aaron Nola A. Nola	4.16	1707.2	284	108	89	.548	284	3.84	1,867	6	4	0	1,520	729	768	216	449	56	0	16	7,013	18	9.84	2.37	1.14	26.6	6.4	1.15	.295	4.05	91	3.51	82	8.01	145.6
14	Pedro Martinez P. Martinez	4.15	2827.1	476	219	100	.687	409	2.93	3,154	46	17	3	2,221	919	1,006	239	760	141	23	30	11,394	62	10.04	2.42	0.76	27.7	6.7	1.05	.279	3.20	66	2.91	68	7.07	454.6
15	Mariano Rivera M. Rivera	4.10	1283.2	1,115	82	60	.577	10	2.21	1,173	0	0	652	998	315	340	71	286	46	952	41	5,103	13	8.22	2.01	0.50	23.0	5.6	1.00	.263	2.38	49	2.76	61	7.00	246.7
16	Dan Haren D. Haren	4.03	2419.2	391	153	131	.539	380	3.75	2,013	16	6	1	2,357	1,009	1,105	305	500	67	4	39	10,022	98	7.49	1.86	1.13	20.1	5.0	1.18	.288	4.11	92	3.77	92	8.77	92.8
17	Joe Musgrove J. Musgrove	4.01	1056.0	206	66	62	.516	180	3.73	1,050	2	2	2	970	438	472	133	262	77	7	10	4,385	21	8.95	2.23	1.13	23.9	6.0	1.17	.292	4.02	91	3.78	90	8.27	49.3
18	Hyun Jin Ryu H. Jin Ryu	3.96	1055.1	186	78	48	.619	185	3.27	934	4	3	1	1,013	384	416	116	236	17	1	13	4,339	15	7.97	2.01	0.99	21.5	5.4	1.18	.295	3.55	82	3.52	86	8.64	64.8
19	Logan Webb L. Webb	3.94	1057.0	179	68	51	.571	176	3.40	986	3	2	0	1,017	399	440	74	250	36	0	4	4,331	22	8.40	2.13	0.63	22.8	5.8	1.20	.316	3.75	83	3.02	75	8.66	119.5
20	Cliff Lee C. Lee	3.93	2156.2	328	143	91	.611	324	3.52	1,824	29	12	0	2,116	843	923	223	464	50	1	12	8,917	41	7.61	1.94	0.93	20.5	5.2	1.20	.298	3.85	84	3.44	82	8.83	168.2
21	Zack Greinke Z. Greinke	3.91	3389.1	586	225	156	.591	541	3.49	2,979	17	5	1	3,207	1,315	1,410	367	762	79	8	25	13,877	101	7.91	2.02	0.97	21.5	5.5	1.17	.293	3.74	83	3.51	85	8.52	235
22	Madison Bumgarner M. Bumgarner	3.81	2209.1	358	134	124	.519	355	3.47	2,070	16	7	0	2,007	853	933	258	544	89	1	38	9,098	29	8.43	2.22	1.05	22.8	6.0	1.15	.285	3.80	90	3.62	94	8.18	50.1
23	Zack Wheeler Z. Wheeler	3.71	1728.1	283	113	75	.601	283	3.28	1,820	5	3	0	1,475	630	683	166	490	76	0	14	7,086	41	9.48	2.55	0.86	25.7	6.9	1.14	.289	3.56	82	3.28	80	7.68	164.7
24	David Price D. Price	3.69	2143.2	400	157	82	.657	322	3.32	2,076	17	3	3	1,930	790	865	221	562	63	19	16	8,807	40	8.72	2.36	0.93	23.6	6.4	1.16	.290	3.63	81	3.38	83	8.10	165.9
25	Yu Darvish Y. Darvish	3.69	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	10.51	2.85	1.16	28.4	7.7	1.14	.282	3.83	87	3.57	85	7.38	122.2