Derek Jeter has the most career games in the postseason, with 158 games.

Interpreted as:

most career postseason games by a player finished

	NAME	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Derek Jeter D. Jeter	158	650	111	200	32	5	20	61	66	5	135	18	5	734	302	57	9	4	3	14	.308	.374	.465	.838
2	Jorge Posada J. Posada	125	416	53	103	23	1	11	42	70	3	109	3	3	492	161	35	0	3	9	15	.248	.358	.387	.745
3	Bernie Williams B. Williams	121	465	83	128	29	0	22	80	71	3	85	8	5	545	223	51	0	6	11	17	.275	.371	.480	.850
4	David Justice D. Justice	112	398	55	89	17	2	14	63	64	5	79	3	2	471	152	33	0	4	7	7	.224	.335	.382	.717
5	Manny Ramirez M. Ramirez	111	410	67	117	19	0	29	78	72	5	91	1	1	493	223	48	0	6	12	17	.285	.394	.544	.937
6	Jose Altuve J. Altuve	105	436	89	118	21	0	27	56	43	2	75	9	5	484	220	48	0	3	2	15	.271	.337	.505	.841
7	Yadier Molina Y. Molina	104	373	29	102	19	0	4	36	27	3	44	1	1	406	133	23	1	2	6	13	.273	.326	.357	.682
8	Alex Bregman A. Bregman	99	370	63	88	17	1	19	54	53	9	64	3	1	434	164	37	0	2	4	10	.238	.346	.443	.789
9	Tino Martinez T. Martinez	99	356	44	83	15	0	9	38	41	6	72	3	2	405	125	24	0	2	7	1	.233	.321	.351	.672
10	Kenny Lofton K. Lofton	95	392	65	97	12	4	7	34	38	2	68	34	6	438	138	23	3	3	3	4	.247	.315	.352	.667
11	Chipper Jones C. Jones	93	338	58	97	18	0	13	47	72	1	61	8	3	417	154	31	1	5	11	10	.287	.409	.456	.864
12	Yuli Gurriel Y. Gurriel	92	348	35	91	15	1	8	39	28	2	36	5	0	380	132	24	0	2	5	7	.261	.318	.379	.698
13	Albert Pujols A. Pujols	88	304	57	97	18	1	19	54	50	5	46	1	2	360	174	38	0	1	20	7	.319	.422	.572	.995
14	Enrique Hernández E. Hernández	86	230	37	64	7	2	15	35	23	4	51	3	3	259	120	24	1	1	2	3	.278	.353	.522	.874
15	Justin Turner J. Turner	86	315	43	85	19	1	13	42	38	13	59	5	0	368	145	33	0	2	1	6	.270	.370	.460	.830
16	Carlos Correa C. Correa	85	323	38	91	19	0	18	63	31	4	84	1	0	358	164	37	0	0	2	8	.282	.352	.508	.860
17	David Ortiz D. Ortiz	85	304	51	88	22	2	17	61	59	2	72	0	1	369	165	41	0	4	11	4	.289	.404	.543	.947
18	Paul O'Neill P. O'Neill	85	299	39	85	17	2	11	39	38	0	41	5	0	340	139	30	1	2	2	12	.284	.363	.465	.828
19	Chris Taylor C. Taylor	80	227	39	56	13	2	9	26	36	1	72	5	1	266	100	24	1	1	0	1	.247	.351	.441	.791
20	Joc Pederson J. Pederson	79	195	29	50	8	0	12	29	17	5	61	2	0	218	94	20	1	0	4	4	.256	.332	.482	.814
21	Corey Seager C. Seager	78	299	55	76	17	1	19	48	42	3	79	3	0	346	152	37	0	2	3	6	.254	.350	.508	.858
22	Matt Holliday M. Holliday	77	290	42	71	10	1	13	37	18	6	62	1	1	314	122	24	0	0	0	5	.245	.303	.421	.723
23	Reggie Jackson R. Jackson	77	281	41	78	14	1	18	48	33	3	70	5	2	318	148	33	0	1	3	5	.278	.358	.527	.885
24	Andruw Jones A. Jones	76	238	43	65	8	0	10	34	34	2	50	5	5	279	103	18	1	4	2	5	.273	.363	.433	.796
25	Alex Rodriguez A. Rodriguez	76	278	43	72	16	0	13	41	39	9	77	8	3	330	127	29	1	3	4	6	.259	.365	.457	.822