which pitcher has the most losses in a postseason

Justin Verlander has lost the most games in a postseason, with 4 games in 2019.

	NAME	L	SEASON	TM	W	L%	G	W%	GS	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	Justin Verlander J. Verlander	4	2019	HOU	1	.800	6	.200	6	4.33	38	0	0	0	35.1	30	17	17	8	14	0	0	0	146	0	9.68	3.57	2.71	2.04	26.0	9.6	1.25	.256	4.33	7.64
2	Framber Valdez F. Valdez	3	2023	HOU	0	1.000	3	.000	3	9.00	17	0	0	0	12.0	19	12	13	4	6	1	0	0	61	0	12.75	4.50	2.83	3.00	27.9	9.8	2.08	.455	9.75	14.25
3	Zac Gallen Z. Gallen	3	2023	ARI	2	.600	6	.400	6	4.54	24	0	0	0	33.2	31	17	17	6	14	1	0	0	141	2	6.42	3.74	1.71	1.60	17.0	9.9	1.34	.260	4.54	8.29
4	Zack Wheeler Z. Wheeler	3	2022	PHI	1	.750	6	.250	6	2.78	33	0	0	0	35.2	19	11	12	2	7	4	0	0	135	0	8.33	1.77	4.71	0.50	24.4	5.2	0.73	.191	3.03	4.79
5	Luis Garcia L. Garcia	3	2021	HOU	1	.750	5	.250	5	8.04	21	0	0	0	15.2	13	14	14	3	12	0	0	1	73	0	12.06	6.89	1.75	1.72	28.8	16.4	1.60	.270	8.04	7.47
6	Tyler Glasnow T. Glasnow	3	2020	TBR	2	.600	6	.400	6	6.28	40	0	0	0	28.2	26	20	20	9	17	0	0	0	126	6	12.56	5.34	2.35	2.83	31.7	13.5	1.50	.283	6.28	8.16
7	Patrick Corbin P. Corbin	3	2019	WSH	2	.600	8	.400	3	5.79	36	0	0	0	23.1	21	15	16	2	12	1	0	1	103	0	13.89	4.63	3.00	0.77	35.0	11.7	1.41	.365	6.17	8.10
8	Clayton Kershaw C. Kershaw	3	2018	LAD	2	.600	6	.400	5	4.20	26	0	0	0	30.0	25	14	15	4	7	1	1	1	119	0	7.80	2.10	3.71	1.20	21.8	5.9	1.07	.259	4.50	7.50
9	Adam Wainwright A. Wainwright	3	2013	STL	2	.600	5	.400	5	2.57	34	1	0	0	35.0	31	10	12	1	3	0	0	0	135	0	8.74	0.77	11.33	0.26	25.2	2.2	0.97	.309	3.09	7.97
10	Shaun Marcum S. Marcum	3	2011	MIL	0	1.000	3	.000	3	14.90	5	0	0	0	9.2	17	16	16	3	5	0	0	1	49	0	4.66	4.66	1.00	2.79	10.2	10.2	2.28	.389	14.90	15.83
11	C.J. Wilson	3	2011	TEX	0	1.000	6	.000	5	5.79	26	0	0	0	28.0	29	18	21	6	19	3	0	5	130	3	8.36	6.11	1.37	1.93	20.0	14.6	1.71	.303	6.75	9.32
12	J.P. Howell	3	2008	TBR	0	1.000	12	.000	0	3.00	17	0	0	0	12.0	9	4	4	0	4	2	1	1	50	1	12.75	3.00	4.25	0.00	34.0	8.0	1.08	.333	3.00	6.75
13	Brad Lidge B. Lidge	3	2005	HOU	0	1.000	10	.000	0	4.26	18	0	0	3	12.2	12	6	6	2	6	0	8	0	55	0	12.79	4.26	3.00	1.42	32.7	10.9	1.42	.345	4.26	8.53
14	Dan Miceli D. Miceli	3	2004	HOU	0	1.000	5	.000	0	11.57	2	0	0	0	4.2	5	6	6	4	2	0	3	0	21	0	3.86	3.86	1.00	7.71	9.5	9.5	1.50	.077	11.57	9.64
15	Derek Lowe D. Lowe	3	2003	BOS	0	1.000	5	.000	3	4.18	11	0	0	1	23.2	21	11	12	1	14	1	2	3	106	0	4.18	5.32	0.79	0.38	10.4	13.2	1.48	.253	4.56	7.99
16	Mike Mussina M. Mussina	3	2003	NYY	1	.750	5	.250	4	3.38	32	0	0	0	29.1	30	11	11	5	8	0	0	3	123	0	9.82	2.45	4.00	1.53	26.0	6.5	1.30	.321	3.38	9.20
17	Andy Pettitte A. Pettitte	3	2001	NYY	2	.600	5	.400	5	4.55	21	0	0	0	29.2	30	15	15	2	6	1	0	1	122	0	6.37	1.82	3.50	0.61	17.2	4.9	1.21	.304	4.55	9.10
18	Aaron Sele A. Sele	3	2001	SEA	0	1.000	3	.000	3	4.50	5	0	0	0	12.0	16	6	12	3	4	1	0	0	59	0	3.75	3.00	1.25	2.25	8.5	6.8	1.67	.283	9.00	12.00
19	Kenny Rogers K. Rogers	3	1999	NYM	0	1.000	4	.000	2	6.75	8	0	0	0	12.0	16	9	9	2	9	1	1	2	57	0	6.00	6.75	0.89	1.50	14.0	15.8	2.08	.378	6.75	12.00
20	Doug Drabek D. Drabek	3	1992	PIT	0	1.000	3	.000	3	3.71	10	0	0	0	17.0	18	7	11	1	6	0	0	1	76	0	5.29	3.18	1.67	0.53	13.2	7.9	1.41	.288	5.82	9.53
21	Tom Glavine T. Glavine	3	1992	ATL	1	.750	4	.250	4	4.81	10	2	0	0	24.1	23	13	14	5	7	2	0	1	101	0	3.70	2.59	1.43	1.85	9.9	6.9	1.23	.234	5.18	8.51
22	Jack Morris J. Morris	3	1992	TOR	0	1.000	4	.000	4	7.43	18	1	0	0	23.0	24	19	19	6	15	0	0	2	105	2	7.04	5.87	1.20	2.35	17.1	14.3	1.70	.273	7.43	9.39
23	Tom Glavine T. Glavine	3	1991	ATL	1	.750	4	.250	4	2.96	19	1	0	0	27.1	20	9	11	3	13	0	0	2	113	0	6.26	4.28	1.46	0.99	16.8	11.5	1.21	.218	3.62	6.59
24	Danny Cox D. Cox	3	1987	STL	2	.600	5	.400	4	4.40	20	2	1	0	28.2	30	14	14	4	11	0	0	1	121	1	6.28	3.45	1.82	1.26	16.5	9.1	1.43	.302	4.40	9.42
25	Dwight Gooden D. Gooden	3	1986	NYM	0	1.000	4	.000	4	3.46	18	0	0	0	26.0	33	10	12	3	9	1	0	0	118	0	6.23	3.12	2.00	1.04	15.3	7.6	1.62	.345	4.15	11.42