Javy Lopez has the most doubles in an NLCS, with 5 doubles.

Interpreted as:

most doubles by a player in one nlcs

	NAME	2B	SEASON	SERIES	TM	G	AB	R	H	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Javy Lopez J. Lopez	5	1996	NLCS	ATL	7	24	8	13	0	2	6	3	1	1	1	0	28	24	7	0	0	1	0	.542	.607	1.000	1.607
2	Mookie Betts M. Betts	4	2024	NLCS	LAD	6	26	6	9	0	2	9	5	0	5	2	0	31	19	6	0	0	0	0	.346	.452	.731	1.182
3	Starling Marte S. Marte	4	2024	NLCS	NYM	6	27	2	9	0	0	4	0	1	5	0	0	28	13	4	0	0	0	0	.333	.357	.481	.839
4	Ketel Marte K. Marte	4	2023	NLCS	ARI	7	31	2	12	1	0	3	1	0	10	1	0	32	18	5	0	0	0	0	.387	.406	.581	.987
5	Howie Kendrick H. Kendrick	4	2019	NLCS	WSH	4	15	4	5	0	0	4	2	0	4	0	0	17	9	4	0	0	2	1	.333	.412	.600	1.012
6	Lorenzo Cain L. Cain	4	2018	NLCS	MIL	7	33	3	10	0	0	1	1	0	9	0	1	34	14	4	0	0	0	0	.303	.324	.424	.748
7	Javier Báez J. Báez	4	2016	NLCS	CHC	6	22	3	7	0	0	5	1	0	4	2	0	24	11	4	0	1	0	0	.318	.333	.500	.833
8	Jerry Hairston J. Hairston	4	2011	NLCS	MIL	6	23	6	9	0	0	1	2	0	3	0	0	25	13	4	0	0	0	0	.391	.440	.565	1.005
9	Albert Pujols A. Pujols	4	2011	NLCS	STL	6	23	5	11	0	2	9	4	0	4	0	0	27	21	6	0	0	2	1	.478	.556	.913	1.469
10	Ryan Howard R. Howard	4	2010	NLCS	PHI	6	22	1	7	0	0	0	3	0	12	0	0	25	11	4	0	0	1	0	.318	.400	.500	.900
11	Edgardo Alfonzo E. Alfonzo	4	1999	NLCS	NYM	6	27	2	6	0	0	1	1	0	9	0	0	29	10	4	1	0	0	0	.222	.250	.370	.620
12	Fred McGriff F. McGriff	4	1995	NLCS	ATL	4	16	5	7	0	0	0	3	0	0	0	0	19	11	4	0	0	2	0	.438	.526	.688	1.214
13	Gary Redus G. Redus	4	1992	NLCS	PIT	5	16	4	7	1	0	3	2	0	3	0	0	18	13	5	0	0	0	0	.438	.500	.813	1.313
14	Jeff King J. King	4	1992	NLCS	PIT	7	29	4	7	0	0	2	0	0	1	0	1	29	11	4	0	0	0	0	.241	.241	.379	.621
15	Tom Herr T. Herr	4	1985	NLCS	STL	6	21	2	7	0	1	6	5	0	2	1	0	27	14	5	0	1	1	0	.333	.444	.667	1.111
16	Pete Rose P. Rose	4	1972	NLCS	CIN	5	20	1	9	0	0	2	1	0	2	0	0	22	13	4	1	0	0	0	.450	.476	.650	1.126
17	Tommy Edman T. Edman	3	2024	NLCS	LAD	6	27	5	11	0	1	11	0	0	4	1	0	29	17	4	1	1	0	0	.407	.393	.630	1.022
18	Brandon Marsh B. Marsh	3	2023	NLCS	PHI	7	24	0	8	0	0	3	3	0	10	1	0	27	11	3	0	0	0	1	.333	.407	.458	.866
19	Bryce Harper B. Harper	3	2022	NLCS	PHI	5	20	4	8	0	2	5	0	0	1	0	0	20	17	5	0	0	0	2	.400	.400	.850	1.250
20	Bryson Stott B. Stott	3	2022	NLCS	PHI	5	15	1	4	0	0	1	0	0	4	0	0	15	7	3	0	0	0	0	.267	.267	.467	.733
21	AJ Pollock	3	2021	NLCS	LAD	6	21	5	8	0	2	7	0	0	3	0	0	21	17	5	0	0	0	1	.381	.381	.810	1.190
22	Chris Taylor C. Taylor	3	2021	NLCS	LAD	6	21	5	10	0	3	9	3	0	7	3	0	24	22	6	0	0	0	0	.476	.542	1.048	1.589
23	Freddie Freeman F. Freeman	3	2020	NLCS	ATL	7	25	6	9	0	2	6	3	1	5	0	0	29	18	5	0	0	0	0	.360	.448	.720	1.168
24	Jesus Aguilar J. Aguilar	3	2018	NLCS	MIL	7	26	4	7	0	1	4	2	0	11	0	0	28	13	4	0	0	1	0	.269	.321	.500	.821
25	Yasiel Puig Y. Puig	3	2018	NLCS	LAD	7	21	1	7	0	1	4	1	0	6	0	0	22	13	4	0	0	0	2	.333	.364	.619	.983