which pitcher has the highest career strikeouts per nine innings in postseason play with at least 20 innings pitched

Cody Allen has the highest career K/9 in the postseason when pitching at least 20 innings, with 15.49 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	H/9
1	Cody Allen C. Allen	15.49	20.1	17	0	0		0	3.10	35	0	0	7	18	7	9	2	10	1	9	3	91	1	4.43	3.50	0.89	38.5	11.0	1.38	.372	3.98	7.97
2	Bryan Abreu B. Abreu	14.54	21.2	21	0	0		0	2.49	35	0	0	0	12	6	6	2	9	3	2	0	89	1	3.74	3.89	0.83	39.3	10.1	0.97	.250	2.49	4.98
3	Trevor Rosenthal T. Rosenthal	14.40	30.0	27	1	0	1.000	0	2.40	48	0	0	8	20	8	8	1	16	1	19	3	125	1	4.80	3.00	0.30	38.4	12.8	1.20	.322	2.40	6.00
4	Tyler Matzek T. Matzek	14.05	24.1	20	4	0	1.000	0	1.48	38	0	0	0	16	4	4	1	7	0	1	1	94	1	2.59	5.43	0.37	40.4	7.4	0.95	.313	1.48	5.92
5	Patrick Corbin P. Corbin	13.89	23.1	8	2	3	.400	3	5.79	36	0	0	0	21	15	16	2	12	1	0	1	103	0	4.63	3.00	0.77	35.0	11.7	1.41	.365	6.17	8.10
6	Josh Hader J. Hader	13.50	22.0	18	0	2	.000	0	1.64	33	0	0	5	14	4	5	1	6	1	11	0	84	0	2.45	5.50	0.41	39.3	7.1	0.91	.302	2.05	5.73
7	A.J. Minter	12.96	25.0	20	3	1	.750	1	3.24	36	0	0	0	17	9	9	2	8	2	2	2	102	1	2.88	4.50	0.72	35.3	7.8	1.00	.278	3.24	6.12
8	Kenley Jansen K. Jansen	12.95	65.1	59	3	2	.600	0	2.20	94	0	0	20	34	16	18	7	18	3	47	3	250	0	2.48	5.22	0.96	37.6	7.2	0.80	.211	2.48	4.68
9	Wade Davis W. Davis	12.83	40.0	30	4	0	1.000	1	1.80	57	0	0	8	29	8	9	5	18	0	14	0	160	2	4.05	3.17	1.13	35.6	11.3	1.18	.300	2.03	6.53
10	Octavio Dotel O. Dotel	12.73	23.1	26	3	1	.750	0	3.86	33	0	0	0	17	10	11	2	11	2	2	2	99	2	4.24	3.00	0.77	33.3	11.1	1.20	.294	4.24	6.56
11	Aroldis Chapman A. Chapman	12.72	51.2	46	3	4	.429	0	2.26	73	0	0	11	39	13	16	4	21	3	29	1	213	3	3.66	3.48	0.70	34.3	9.9	1.16	.313	2.79	6.79
12	Tarik Skubal T. Skubal	12.71	39.2	6	2	1	.667	6	2.04	56	0	0	0	23	9	9	3	6	2	0	1	148	0	1.36	9.33	0.68	37.8	4.1	0.73	.247	2.04	5.22
13	Brandon Woodruff B. Woodruff	12.71	28.1	8	1	3	.250	4	3.18	40	0	0	0	20	10	10	2	4	2	1	1	108	1	1.27	10.00	0.64	37.0	3.7	0.85	.300	3.18	6.35
14	Trey Yesavage T. Yesavage	12.69	27.2	6	3	1	.750	5	3.58	39	0	0	0	18	11	11	4	11	2	0	1	109	1	3.58	3.55	1.30	35.8	10.1	1.05	.264	3.58	5.86
15	Andrew Miller A. Miller	12.57	38.2	29	2	1	.667	0	0.93	54	0	0	1	20	4	4	3	13	3	3	2	148	1	3.03	4.15	0.70	36.5	8.8	0.85	.227	0.93	4.66
16	Chris Sale C. Sale	12.44	34.0	10	1	3	.250	7	6.35	47	0	0	0	36	24	26	7	13	2	1	0	152	1	3.44	3.62	1.85	30.9	8.6	1.44	.349	6.88	9.53
17	Duane Ward D. Ward	12.41	24.2	19	4	1	.800	0	4.74	34	0	0	5	24	13	14	3	9	1	11	0	106	2	3.28	3.78	1.09	32.1	8.5	1.34	.356	5.11	8.76
18	Shohei Ohtani S. Ohtani	12.39	20.1	4	2	1	.667	4	4.43	28	0	0	0	16	10	10	2	7	1	0	1	83	1	3.10	4.00	0.89	33.7	8.4	1.13	.311	4.43	7.08
19	Cristian Javier C. Javier	12.37	43.2	17	6	2	.750	5	2.68	60	0	0	0	22	13	13	7	23	3	0	0	177	1	4.74	2.61	1.44	33.9	13.0	1.03	.179	2.68	4.53
20	Brad Lidge B. Lidge	12.31	45.1	39	2	4	.333	0	2.18	62	0	0	18	32	11	11	2	19	3	32	2	185	3	3.77	3.26	0.40	33.5	10.3	1.13	.303	2.18	6.35
21	Jeff Hoffman J. Hoffman	12.19	20.2	21	2	3	.400	0	4.35	28	0	0	2	14	10	10	2	7	4	7	2	85	3	3.05	4.00	0.87	32.9	8.2	1.02	.273	4.35	6.10
22	Sterling Hitchcock S. Hitchcock	12.03	30.2	9	4	0	1.000	4	1.76	41	0	0	0	23	6	8	4	11	1	1	2	123	2	3.23	3.73	1.17	33.3	8.9	1.11	.288	2.35	6.75
23	Francisco Rodriguez F. Rodriguez	12.03	36.2	26	5	4	.556	0	2.95	49	0	0	3	32	12	15	5	18	1	8	2	158	5	4.42	2.72	1.23	31.0	11.4	1.36	.318	3.68	7.85
24	Kelvin Herrera K. Herrera	11.93	28.2	22	2	0	1.000	0	1.26	38	0	0	0	21	4	5	0	10	0	0	0	115	0	3.14	3.80	0.00	33.0	8.7	1.08	.313	1.57	6.59
25	Ryan Pressly R. Pressly	11.91	45.1	47	3	1	.750	0	2.78	60	0	0	14	34	14	16	1	15	3	27	1	186	7	2.98	4.00	0.20	32.3	8.1	1.08	.308	3.18	6.75