Lou Gehrig has the best career OPS in the postseason with 80+ at-bats, with an OPS of 1.214.

Interpreted as:

highest MLB playoff ops by a player minimum 80 ab

	NAME	OPS	AB	G	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG
1	Lou Gehrig L. Gehrig	1.214	119	34	30	43	8	3	10	35	26	2	17	0	1	150	87	21	1		2	1	.361	.483	.731
2	Babe Ruth B. Ruth	1.214	129	41	37	42	5	2	15	33	33	2	30	4	3	167	96	22	2		2	3	.326	.470	.744
3	Lenny Dykstra L. Dykstra	1.094	112	32	27	36	6	1	10	19	20	2	23	5	0	136	74	17	2	0	3	0	.321	.433	.661
4	Lou Brock L. Brock	1.079	87	21	16	34	7	2	4	13	5	0	10	14	2	92	57	13	0	0	0	0	.391	.424	.655
5	Randy Arozarena R. Arozarena	1.054	121	35	24	39	5	1	11	17	14	2	36	4	2	137	79	17	0	0	2	2	.322	.401	.653
6	Paul Molitor P. Molitor	1.050	117	29	28	43	5	3	6	22	12	2	15	3	2	132	72	14	1	0	1	2	.368	.435	.615
7	Hank Greenberg H. Greenberg	1.044	85	23	17	27	7	2	5	22	13	2	19	1	0	101	53	14	1		0	4	.318	.420	.624
8	Jorge Soler J. Soler	1.027	80	30	12	22	6	1	7	12	15	0	28	0	0	95	51	14	0	0	0	1	.275	.389	.638
9	George Brett G. Brett	1.023	166	43	30	56	8	5	10	23	17	0	20	2	3	184	104	23	0	1	6	4	.337	.397	.627
10	Jay Buhner J. Buhner	1.021	85	26	12	26	3	0	8	12	13	0	28	0	1	98	53	11	0	0	0	2	.306	.398	.624
11	Carlos Beltran C. Beltran	1.021	215	65	45	66	15	1	16	42	37	2	33	11	0	256	131	32	1	1	2	3	.307	.412	.609
12	Bryce Harper B. Harper	1.006	197	54	41	55	13	1	17	34	35	2	55	8	1	236	121	31	1	1	4	5	.279	.391	.614
13	Albert Pujols A. Pujols	.995	304	88	57	97	18	1	19	54	50	5	46	1	2	360	174	38	0	1	20	7	.319	.422	.572
14	Daniel Murphy D. Murphy	.986	97	25	21	30	3	0	8	19	15	0	21	3	2	113	57	11	0	1	4	1	.309	.398	.588
15	Nelson Cruz N. Cruz	.979	187	50	35	52	12	0	18	38	19	1	45	1	1	207	118	30	0	0	2	5	.278	.348	.631
16	Nomar Garciaparra N. Garciaparra	.975	112	32	16	36	7	1	7	24	12	1	18	2	0	127	66	15	0	2	4	3	.321	.386	.589
17	Ketel Marte K. Marte	.974	90	21	10	31	7	3	3	13	6	0	23	3	1	96	53	13	0	0	0	1	.344	.385	.589
18	Gene Woodling G. Woodling	.972	85	26	21	27	5	2	3	6	19	0	8	0	1	104	45	10	0		2	0	.318	.442	.529
19	Home Run Baker H. Run Baker	.956	91	25	15	33	7	1	3	18	5	0	11	1	4	97	51	11	0		2	1	.363	.396	.560
20	Will Clark W. Clark	.956	117	31	20	39	8	1	5	16	13	2	19	1	1	132	64	14	0	0	3	2	.333	.409	.547
21	Brady Anderson B. Anderson	.955	80	19	16	24	4	0	6	12	10	1	16	3	1	92	46	10	0	1	0	0	.300	.380	.575
22	Rafael Devers R. Devers	.955	89	26	21	27	0	0	8	26	12	0	25	1	0	102	51	8	0	1	0	1	.303	.382	.573
23	James Loney J. Loney	.954	80	23	6	28	5	0	3	16	10	1	13	0	0	91	42	8	0	0	2	5	.350	.429	.525
24	Lance Berkman L. Berkman	.949	186	52	38	59	11	1	9	41	31	3	41	4	1	224	99	21	0	3	6	4	.317	.417	.532
25	David Ortiz D. Ortiz	.947	304	85	51	88	22	2	17	61	59	2	72	0	1	369	165	41	0	4	11	4	.289	.404	.543