Rajon Rondo had his most assists in a playoff game in Game 3 of the 2018 Western Conference Semifinals versus the Warriors, with 21 assists.

Interpreted as:

rondo career high assists in a game playoff

	NAME	AST	DATE	TM		OPP	MIN	PTS	REB	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Rajon Rondo R. Rondo	21	5/4/2018	NOP	vs	GSW	37	4	10	1	0	2	11	18.2	0	2	0.0	0	0		18.2	2	8	4	2	+23
2	Rajon Rondo R. Rondo	20	4/22/2011	BOS	@	NYK	41	15	11	2	0	5	13	38.5	0	0		5	6	83.3	48.0	6	5	4	4	+23
3	Rajon Rondo R. Rondo	19	5/3/2010	BOS	@	CLE	45	13	4	2	0	5	10	50.0	1	2	50.0	2	4	50.0	55.3	1	3	6	4	+18
4	Rajon Rondo R. Rondo	19	4/30/2009	BOS	@	CHI	58	8	9	0	0	4	17	23.5	0	2	0.0	0	2	0.0	22.4	2	7	0	4	+3
5	Rajon Rondo R. Rondo	18	5/6/2009	BOS	vs	ORL	39	15	11	2	0	7	19	36.8	0	3	0.0	1	2	50.0	37.7	1	10	3	2	+25
6	Rajon Rondo R. Rondo	17	4/14/2018	NOP	@	POR	39	6	8	1	0	3	9	33.3	0	1	0.0	0	0		33.3	0	8	2	4	-4
7	Rajon Rondo R. Rondo	17	5/12/2012	BOS	vs	PHI	40	13	12	4	0	6	15	40.0	0	3	0.0	1	2	50.0	40.9	5	7	7	5	0
8	Rajon Rondo R. Rondo	16	4/21/2018	NOP	vs	POR	35	7	7	0	0	3	7	42.9	0	1	0.0	1	1	100.0	47.0	0	7	2	2	+12
9	Rajon Rondo R. Rondo	16	5/6/2012	BOS	vs	ATL	35	20	3	3	0	8	11	72.7	2	3	66.7	2	5	40.0	75.8	0	3	1	0	+27
10	Rajon Rondo R. Rondo	16	4/20/2009	BOS	vs	CHI	40	19	12	5	0	7	18	38.9	0	1	0.0	5	8	62.5	44.1	7	5	2	1	+17
11	Rajon Rondo R. Rondo	16	6/8/2008	BOS	vs	LAL	42	4	6	2	1	1	4	25.0	0	0		2	6	33.3	30.1	1	5	2	3	-5
12	Rajon Rondo R. Rondo	15	6/3/2012	BOS	vs	MIA	47	15	5	0	0	7	14	50.0	0	2	0.0	1	2	50.0	50.4	3	2	3	4	+8
13	Rajon Rondo R. Rondo	15	5/18/2012	BOS	@	PHI	41	15	4	2	1	7	14	50.0	0	2	0.0	1	1	100.0	51.9	1	3	4	5	-6
14	Rajon Rondo R. Rondo	14	4/18/2017	CHI	@	BOS	40	11	9	5	0	5	11	45.5	0	3	0.0	1	2	50.0	46.3	2	7	3	1	+24
15	Rajon Rondo R. Rondo	14	6/9/2012	BOS	@	MIA	44	22	10	1	0	10	22	45.5	1	2	50.0	1	2	50.0	48.1	0	10	3	2	-12
16	Rajon Rondo R. Rondo	14	5/21/2012	BOS	vs	PHI	39	13	4	2	0	6	10	60.0	0	1	0.0	1	3	33.3	57.4	1	3	3	0	+16
17	Rajon Rondo R. Rondo	14	5/16/2012	BOS	@	PHI	41	23	6	0	0	9	16	56.3	1	3	33.3	4	4	100.0	64.8	1	5	1	0	+15
18	Rajon Rondo R. Rondo	13	6/5/2012	BOS	@	MIA	44	7	6	4	0	3	15	20.0	0	1	0.0	1	2	50.0	22.0	3	3	5	3	+11
19	Rajon Rondo R. Rondo	13	5/14/2012	BOS	vs	PHI	39	8	7	2	0	4	12	33.3	0	0		0	0		33.3	3	4	1	2	-3
20	Rajon Rondo R. Rondo	13	5/9/2010	BOS	vs	CLE	47	29	18	2	0	9	21	42.9	0	1	0.0	11	16	68.8	51.7	4	14	4	2	+14
21	Rajon Rondo R. Rondo	13	5/28/2008	BOS	vs	DET	46	7	6	4	1	3	14	21.4	0	1	0.0	1	2	50.0	23.5	2	4	1	5	+5
22	Rajon Rondo R. Rondo	13	5/14/2008	BOS	vs	CLE	42	20	2	2	2	9	15	60.0	2	3	66.7	0	0		66.7	1	1	1	3	+8
23	Rajon Rondo R. Rondo	12	5/1/2018	NOP	@	GSW	38	22	7	5	0	8	15	53.3	3	4	75.0	3	3	100.0	67.4	3	4	7	5	+2
24	Rajon Rondo R. Rondo	12	5/8/2012	BOS	@	ATL	44	13	5	5	0	6	17	35.3	1	2	50.0	0	0		38.2	1	4	5	0	-5
25	Rajon Rondo R. Rondo	12	5/4/2012	BOS	vs	ATL	49	17	14	4	0	7	22	31.8	0	1	0.0	3	4	75.0	35.8	3	11	6	1	+4