Since 1980, Jack Morris has the most complete games in the postseason, with 5 complete games.

Interpreted as:

most cg by a player in playoff history since 1980

	NAME	CG	G	W	L	W%	GS	ERA	SO	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	Jack Morris J. Morris	5	13	7	4	.636	13	3.80	64	1	0	92.1	83	39	39	9	32	0	0	3	381	8	6.24	3.12	2.00	0.88	16.8	8.4	1.25	.268	3.80	8.09
2	Curt Schilling C. Schilling	4	19	11	2	.846	19	2.23	120	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
3	Orel Hershiser O. Hershiser	4	22	8	3	.727	18	2.59	97	2	1	132.0	103	38	43	8	43	6	2	5	533	6	6.61	2.93	2.26	0.55	18.2	8.1	1.11	.251	2.93	7.02
4	Madison Bumgarner M. Bumgarner	3	16	8	3	.727	14	2.11	87	3	1	102.1	74	24	25	8	18	5	1	2	398	0	7.65	1.58	4.83	0.70	21.9	4.5	0.90	.236	2.20	6.51
5	Cliff Lee C. Lee	3	11	7	3	.700	11	2.52	89	0	0	82.0	66	23	27	2	10	1	0	0	320	2	9.77	1.10	8.90	0.22	27.8	3.1	0.93	.294	2.96	7.24
6	Josh Beckett J. Beckett	3	14	7	3	.700	13	3.07	99	3	0	93.2	67	32	32	11	21	4	0	1	366	3	9.51	2.02	4.71	1.06	27.0	5.7	0.94	.242	3.07	6.44
7	Randy Johnson R. Johnson	3	19	7	9	.438	16	3.50	132	2	0	121.0	106	47	51	15	32	0	2	2	493	0	9.82	2.38	4.13	1.12	26.8	6.5	1.14	.290	3.79	7.88
8	Tom Glavine T. Glavine	3	35	14	16	.467	35	3.30	143	0	0	218.1	191	80	91	21	87	7	0	11	912	3	5.89	3.59	1.64	0.87	15.7	9.5	1.27	.260	3.75	7.87
9	Bruce Hurst B. Hurst	3	7	3	2	.600	7	2.29	37	0	0	51.0	46	13	14	6	12	0	0	1	205	0	6.53	2.12	3.08	1.06	18.0	5.9	1.14	.267	2.47	8.12
10	Mike Boddicker M. Boddicker	3	4	2	2	.500	4	2.51	29	1	0	28.2	22	8	11	3	7	4	0	1	116	0	9.10	2.20	4.14	0.94	25.0	6.0	1.01	.260	3.45	6.91
11	Dave Stewart D. Stewart	3	22	10	6	.625	18	2.84	73	1	0	133.0	99	42	45	13	48	4	3	1	539	4	4.94	3.25	1.52	0.88	13.5	8.9	1.11	.214	3.05	6.70
12	Yoshinobu Yamamoto Y. Yamamoto	2	10	7	1	.875	9	2.25	48	0	0	56.0	35	14	16	5	12	4	1	0	218	1	7.71	1.93	4.00	0.80	22.0	5.5	0.84	.201	2.57	5.63
13	Johnny Cueto J. Cueto	2	8	2	4	.333	8	4.54	32	0	0	41.2	33	21	22	7	12	1	0	0	170	0	6.91	2.59	2.67	1.51	18.8	7.1	1.08	.220	4.75	7.13
14	Justin Verlander J. Verlander	2	38	17	12	.586	37	3.58	244	1	0	226.0	179	90	93	32	74	5	0	0	920	8	9.72	2.95	3.30	1.27	26.5	8.0	1.12	.260	3.70	7.13
15	Kevin Brown K. Brown	2	14	5	5	.500	13	4.19	71	1	0	81.2	76	38	39	8	31	4	0	2	340	2	7.82	3.42	2.29	0.88	20.9	9.1	1.31	.301	4.30	8.38
16	Tim Wakefield T. Wakefield	2	18	5	7	.417	11	6.75	54	0	0	72.0	68	54	56	13	38	9	2	2	329	1	6.75	4.75	1.42	1.63	16.4	11.6	1.47	.256	7.00	8.50
17	John Smoltz J. Smoltz	2	41	15	4	.789	27	2.67	199	1	4	209.0	172	62	67	17	67	3	11	6	856	6	8.57	2.89	2.97	0.73	23.2	7.8	1.14	.272	2.89	7.41
18	Doug Drabek D. Drabek	2	7	2	5	.286	7	2.05	33	0	0	48.1	40	11	16	1	14	1	0	3	198	1	6.14	2.61	2.36	0.19	16.7	7.1	1.12	.262	2.98	7.45
19	Greg Maddux G. Maddux	2	35	11	14	.440	30	3.27	125	0	1	198.0	195	72	97	14	51	9	2	16	836	4	5.68	2.32	2.45	0.64	15.0	6.1	1.24	.284	4.41	8.86
20	Mike Scott M. Scott	2	2	2	0	1.000	2	0.50	19	1	0	18.0	8	1	1	0	1	0	0	0	65	0	9.50	0.50	19.00	0.00	29.2	1.5	0.50	.178	0.50	4.00
21	Danny Cox D. Cox	2	15	3	3	.500	7	3.24	49	1	0	58.1	58	21	21	4	28	0	2	4	247	1	7.56	4.32	1.75	0.62	19.8	11.3	1.47	.325	3.24	8.95
22	Danny Jackson D. Jackson	2	11	4	3	.571	9	3.30	37	1	0	57.1	59	21	22	2	23	1	1	1	252	0	5.81	3.61	1.61	0.31	14.7	9.1	1.43	.302	3.45	9.26
23	Bret Saberhagen B. Saberhagen	2	10	2	4	.333	10	4.67	38	1	0	54.0	54	28	32	11	11	1	0	1	226	0	6.33	1.83	3.45	1.83	16.8	4.9	1.20	.261	5.33	9.00
24	Jerry Reuss J. Reuss	2	8	2	5	.286	8	3.04	21	1	0	50.1	46	17	22	4	13	0	0	3	211	1	3.75	2.32	1.62	0.72	10.0	6.2	1.17	.243	3.93	8.23
25	Steve Rogers S. Rogers	2	4	3	1	.750	3	0.98	11	1	0	27.2	24	3	3	2	4	0	1	1	105	1	3.58	1.30	2.75	0.65	10.5	3.8	1.01	.250	0.98	7.81