Lou Gehrig has the highest career OPS in the postseason when making 70+ plate appearances, with an OPS of 1.214.

Interpreted as:

highest career playoff ops by a player min 70 pa

	NAME	OPS	PA	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG
1	Lou Gehrig L. Gehrig	1.214	150	34	119	30	43	8	3	10	35	26	2	17	0	1	87	21	1		2	1	.361	.483	.731
2	Babe Ruth B. Ruth	1.214	167	41	129	37	42	5	2	15	33	33	2	30	4	3	96	22	2		2	3	.326	.470	.744
3	Troy Glaus T. Glaus	1.154	88	24	78	18	25	5	1	9	16	9	1	20	0	0	59	15	0	0	2	1	.321	.398	.756
4	Hank Aaron H. Aaron	1.116	74	17	69	11	25	4	1	6	16	5	0	13	0	0	49	11	0	0	0	2	.362	.405	.710
5	Fernando Tatis Jr. F. Tatis Jr.	1.114	70	16	60	15	19	5	0	6	12	9	1	13	2	1	42	11	0	0	1	1	.317	.414	.700
6	Lenny Dykstra L. Dykstra	1.094	136	32	112	27	36	6	1	10	19	20	2	23	5	0	74	17	2	0	3	0	.321	.433	.661
7	Gary Matthews G. Matthews	1.090	75	19	65	12	21	0	1	7	15	10	0	9	2	1	44	8	0	0	2	3	.323	.413	.677
8	Lou Brock L. Brock	1.079	92	21	87	16	34	7	2	4	13	5	0	10	14	2	57	13	0	0	0	0	.391	.424	.655
9	Vladimir Guerrero Jr. V. Guerrero Jr.	1.077	99	21	84	17	29	4	0	7	15	12	2	10	0	0	54	11	0	1	6	0	.345	.434	.643
10	Paul Molitor P. Molitor	1.050	132	29	117	28	43	5	3	6	22	12	2	15	3	2	72	14	1	0	1	2	.368	.435	.615
11	Carl Yastrzemski C. Yastrzemski	1.047	76	17	65	15	24	3	0	4	11	9	1	3	0	0	39	7	0	1	2	2	.369	.447	.600
12	John Valentin J. Valentin	1.046	81	17	72	15	25	6	0	5	19	8	0	10	0	1	46	11	0	1	1	2	.347	.407	.639
13	Hank Greenberg H. Greenberg	1.044	101	23	85	17	27	7	2	5	22	13	2	19	1	0	53	14	1		0	4	.318	.420	.624
14	Al Simmons A. Simmons	1.037	80	19	73	15	24	6	0	6	17	6	0	9	0	0	48	12	0		1	2	.329	.380	.658
15	Jimmie Foxx J. Foxx	1.034	73	18	64	11	22	3	1	4	11	9	0	10	0	0	39	8	0		2	2	.344	.425	.609
16	Hanley Ramirez H. Ramirez	1.027	80	20	71	9	27	9	1	1	14	7	2	13	2	0	41	11	0	0	3	2	.380	.450	.577
17	Jorge Soler J. Soler	1.027	95	30	80	12	22	6	1	7	12	15	0	28	0	0	51	14	0	0	0	1	.275	.389	.638
18	George Brett G. Brett	1.023	184	43	166	30	56	8	5	10	23	17	0	20	2	3	104	23	0	1	6	4	.337	.397	.627
19	Jay Buhner J. Buhner	1.021	98	26	85	12	26	3	0	8	12	13	0	28	0	1	53	11	0	0	0	2	.306	.398	.624
20	Carlos Beltran C. Beltran	1.021	256	65	215	45	66	15	1	16	42	37	2	33	11	0	131	32	1	1	2	3	.307	.412	.609
21	Pete Alonso P. Alonso	1.003	70	16	54	12	15	1	0	5	11	14	1	19	2	0	31	6	0	1	1	2	.278	.429	.574
22	Albert Pujols A. Pujols	.995	360	88	304	57	97	18	1	19	54	50	5	46	1	2	174	38	0	1	20	7	.319	.422	.572
23	Daniel Murphy D. Murphy	.986	113	25	97	21	30	3	0	8	19	15	0	21	3	2	57	11	0	1	4	1	.309	.398	.588
24	Bryce Harper B. Harper	.986	250	57	208	42	57	14	1	17	34	38	2	56	8	1	124	32	1	1	4	5	.274	.390	.596
25	Nelson Cruz N. Cruz	.979	207	50	187	35	52	12	0	18	38	19	1	45	1	1	118	30	0	0	2	5	.278	.348	.631