highest career win percentage by a starting pitcher in playoffs minimum 5 starts

11 pitchers are tied for the highest career win percentage by a starting pitcher in the postseason when starting 5+ games, at 1.000. The first three are Yoshinobu Yamamoto, Ian Anderson and Ryan Vogelsong.

	NAME	W%	GS	W	L	G	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Yoshinobu Yamamoto Y. Yamamoto	1.000	5	3	0	5	2.84	24	0	0	0	25.1	16	8	10	3	8	2	0	0	102	1	8.53	2.84	3.00	1.07	23.5	7.8	0.95	.200	3.55	5.68
2	Ian Anderson I. Anderson	1.000	8	4	0	8	1.26	40	0	0	0	35.2	20	5	5	1	17	2	0	0	145	1	10.09	4.29	2.35	0.25	27.6	11.7	1.04	.224	1.26	5.05
3	Ryan Vogelsong R. Vogelsong	1.000	7	3	0	7	3.00	28	0	0	0	36.0	32	12	12	1	15	1	0	0	152	0	7.00	3.75	1.87	0.25	18.4	9.9	1.31	.290	3.00	8.00
4	Joe Blanton J. Blanton	1.000	6	2	0	6	4.28	30	0	0	0	33.2	32	16	17	4	11	3	0	2	146	2	8.02	2.94	2.73	1.07	20.5	7.5	1.28	.286	4.54	8.55
5	Paul Byrd P. Byrd	1.000	5	3	0	5	4.44	10	0	0	0	24.1	31	12	12	5	6	2	0	0	111	0	3.70	2.22	1.67	1.85	9.0	5.4	1.52	.295	4.44	11.47
6	Brandon Backe B. Backe	1.000	6	1	0	6	3.03	31	0	0	0	35.2	23	12	12	3	12	3	0	1	142	1	7.82	3.03	2.58	0.76	21.8	8.5	0.98	.215	3.03	5.80
7	Jerry Koosman J. Koosman	1.000	6	4	0	6	3.38	31	2	0	0	40.0	31	15	15	4	15	0	0	1	164	0	6.98	3.38	2.07	0.90	18.9	9.1	1.15	.237	3.38	6.98
8	Lefty Gomez L. Gomez	1.000	7	6	0	7	2.86	31	4	0	0	50.1	51	16	17	2	15	0	0	0	213	1	5.54	2.68	2.07	0.36	14.6	7.0	1.31	.297	3.04	9.12
9	Herb Pennock H. Pennock	1.000	5	5	0	5	2.05	16	4	0	0	44.0	31	10	10	2	5	0	0	0	165	0	3.27	1.02	3.20	0.41	9.7	3.0	0.82	.204	2.05	6.34
10	Jack Coombs J. Coombs	1.000	6	5	0	6	2.70	34	4	0	0	53.1	42	16	18	1	21	1	0	0	213	1	5.74	3.54	1.62	0.17	16.0	9.9	1.18	.263	3.04	7.09
11	Ed Reulbach E. Reulbach	1.000	5	2	0	5	3.45	11	2	0	0	28.2	23	11	12	0	13	1	0	0	119	1	3.45	4.08	0.85	0.00	9.2	10.9	1.26	.245	3.77	7.22
12	Nathan Eovaldi N. Eovaldi	.900	12	9	1	12	2.84	73	0	0	0	69.2	59	22	22	5	15	1	0	2	286	0	9.43	1.94	4.87	0.65	25.5	5.2	1.06	.281	2.84	7.62
13	Curt Schilling C. Schilling	.846	19	11	2	19	2.23	120	4	2	0	133.1	104	33	37	12	25	3	0	0	525	1	8.10	1.69	4.80	0.81	22.9	4.8	0.97	.252	2.50	7.02
14	Roy Oswalt R. Oswalt	.833	11	5	1	11	3.62	54	0	0	0	69.2	68	28	30	9	24	6	0	0	302	1	6.98	3.10	2.25	1.16	17.9	7.9	1.32	.282	3.88	8.78
15	Juan Guzman J. Guzman	.833	8	5	1	8	2.44	41	0	0	0	51.2	42	14	17	1	27	2	0	4	221	5	7.14	4.70	1.52	0.17	18.6	12.2	1.34	.273	2.96	7.32
16	Fernando Valenzuela F. Valenzuela	.833	8	5	1	8	2.00	44	2	0	0	63.0	47	14	14	3	29	0	0	6	255	3	6.29	4.14	1.52	0.43	17.3	11.4	1.21	.246	2.00	6.71
17	Orlando Hernandez O. Hernandez	.818	14	9	2	14	2.64	93	0	0	0	95.1	70	28	30	8	51	4	0	2	400	1	8.78	4.81	1.82	0.76	23.3	12.8	1.27	.254	2.83	6.61
18	Cristian Javier C. Javier	.800	5	4	1	5	2.01	26	0	0	0	22.1	9	5	5	2	12	1	0	0	88	0	10.48	4.84	2.17	0.81	29.5	13.6	0.94	.149	2.01	3.63
19	Jacob deGrom J. deGrom	.800	5	4	1	5	2.90	37	0	0	0	31.0	26	10	10	3	10	0	0	1	130	0	10.74	2.90	3.70	0.87	28.5	7.7	1.16	.288	2.90	7.55
20	Doug Fister D. Fister	.800	9	4	1	9	2.25	35	0	0	0	52.0	51	13	13	3	15	3	0	0	218	2	6.06	2.60	2.33	0.52	16.1	6.9	1.27	.296	2.25	8.83
21	Colby Lewis C. Lewis	.800	9	4	1	9	3.12	46	0	0	0	52.0	37	18	20	9	22	2	0	0	215	3	7.96	3.81	2.09	1.56	21.4	10.2	1.13	.206	3.46	6.40
22	Bert Blyleven B. Blyleven	.800	6	4	1	6	2.83	31	1	0	0	41.1	38	13	14	5	7	2	0	1	168	0	6.75	1.52	4.43	1.09	18.5	4.2	1.09	.268	3.05	8.27
23	Johnny Podres J. Podres	.800	6	4	1	6	2.11	18	2	1	0	38.1	29	9	14	3	13	2	0	0	157	0	4.23	3.05	1.38	0.70	11.5	8.3	1.10	.215	3.29	6.81
24	Ed Lopat E. Lopat	.800	7	4	1	7	2.60	19	3	0	0	52.0	51	15	16	0	12	0	0	4	216	0	3.29	2.08	1.58	0.00	8.8	5.6	1.21	.276	2.77	8.83
25	Tommy Bridges T. Bridges	.800	5	4	1	5	2.93	24	4	0	0	40.0	43	13	15	2	6	1	0	0	167	1	5.40	1.35	4.00	0.45	14.4	3.6	1.23	.306	3.38	9.68