Michael Jordan had the most games in the playoffs with 50+ points, with 8 games.

Interpreted as:

most 50 or more point games by a player in the playoffs

NAME	GP	PTS	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	REB	AST	STL	BLK	TOV	PF	+/-
Michael Jordan	8	438	44.5	54.8	5.9	3.5	2.5	1.0	2.3	20.0	35.1	56.9	0.9	1.6	53.8	13.9	15.9	87.4	356	47	28	20	8	18	31	+10
Wilt Chamberlain	4	209	46.5	52.3	26.8	2.8				22.5	41.0	54.9				7.3	15.5	46.8	186	107	11				5
Donovan Mitchell	3	158	41.0	52.7	5.7	6.0	0.3	0.3	4.3	18.7	32.0	58.3	4.3	10.3	41.9	11.0	12.3	89.2	123	17	18	1	1	13	8	-9
Allen Iverson	3	161	45.7	53.7	3.7	6.3	2.3	0.0	3.0	21.0	34.3	61.2	4.7	8.0	58.3	7.0	7.3	95.5	137	11	19	7	0	9	8	+51
Jayson Tatum	2	101	41.1	50.5	9.5	6.0	2.0	0.5	0.5	16.5	29.0	56.9	5.5	10.5	52.4	12.0	14.5	82.8	82	19	12	4	1	1	4	+34
Jamal Murray	2	100	43.1	50.0	8.0	6.5	0.0	0.5	2.5	17.5	27.5	63.6	9.0	13.5	66.7	6.0	7.0	85.7	86	16	13	0	1	5	7	+17
Damian Lillard	2	105	48.5	52.5	6.5	8.0	2.0	2.0	3.5	17.0	28.5	59.6	11.0	17.5	62.9	7.5	9.0	83.3	97	13	16	4	4	7	2	+11
Jerry West	2	105		52.5	4.0	9.5				18.5	39.5	46.8				15.5	17.0	91.2		8	19				7
Joel Embiid	1	50	40.6	50.0	8.0	4.0	0.0	1.0	3.0	13.0	19.0	68.4	5.0	7.0	71.4	19.0	21.0	90.5	41	8	4	0	1	3	3	+16
Nikola Jokic	1	53	39.5	53.0	4.0	11.0	0.0	1.0	6.0	20.0	30.0	66.7	2.0	4.0	50.0	11.0	13.0	84.6	39	4	11	0	1	6	2	+2
Stephen Curry	1	50	37.7	50.0	8.0	6.0	1.0	0.0	1.0	20.0	38.0	52.6	7.0	18.0	38.9	3.0	5.0	60.0	38	8	6	1	0	1	2	+25
Jimmy Butler	1	56	40.8	56.0	9.0	2.0	0.0	1.0	1.0	19.0	28.0	67.9	3.0	8.0	37.5	15.0	18.0	83.3	41	9	2	0	1	1	0	+4
Giannis Antetokounmpo	1	50	42.5	50.0	14.0	2.0	0.0	5.0	6.0	16.0	25.0	64.0	1.0	3.0	33.3	17.0	19.0	89.5	42	14	2	0	5	6	2	+10
Kevin Durant	1	50	42.1	50.0	6.0	5.0	1.0	1.0	4.0	15.0	26.0	57.7	6.0	14.0	42.9	14.0	15.0	93.3	42	6	5	1	1	4	4	+18
LeBron James	1	51	47.6	51.0	8.0	8.0	1.0	1.0	5.0	19.0	32.0	59.4	3.0	7.0	42.9	10.0	11.0	90.9	48	8	8	1	1	5	2	-13
Isaiah Thomas	1	53	44.6	53.0	4.0	4.0	3.0	0.0	2.0	18.0	33.0	54.5	5.0	12.0	41.7	12.0	13.0	92.3	45	4	4	3	0	2	2	+10
Russell Westbrook	1	51	41.4	51.0	10.0	13.0	4.0	1.0	4.0	17.0	43.0	39.5	2.0	11.0	18.2	15.0	18.0	83.3	41	10	13	4	1	4	3	+11
Ray Allen	1	51	58.8	51.0	5.0	3.0	3.0	0.0	3.0	18.0	32.0	56.3	9.0	18.0	50.0	6.0	7.0	85.7	59	5	3	3	0	3	1	+1
Dirk Nowitzki	1	50	43.5	50.0	12.0	3.0	1.0	0.0	1.0	14.0	26.0	53.8	5.0	6.0	83.3	17.0	18.0	94.4	43	12	3	1	0	1	2	+22
Kobe Bryant	1	50	52.1	50.0	8.0	5.0	3.0	0.0	7.0	20.0	35.0	57.1	5.0	8.0	62.5	5.0	6.0	83.3	52	8	5	3	0	7	4	-6
Vince Carter	1	50	45.0	50.0	6.0	7.0	1.0	4.0	1.0	19.0	29.0	65.5	9.0	13.0	69.2	3.0	3.0	100.0	45	6	7	1	4	1	3	+24
Karl Malone	1	50	43.0	50.0	12.0	0.0	3.0	1.0	1.0	18.0	32.0	56.3	1.0	1.0	100.0	13.0	14.0	92.9	43	12	0	3	1	1	2	+12
Charles Barkley	1	56	41.0	56.0	14.0	4.0	3.0	1.0	2.0	23.0	31.0	74.2	3.0	4.0	75.0	7.0	9.0	77.8	41	14	4	3	1	2	2
Sleepy Floyd	1	51	44.0	51.0	3.0	10.0	4.0	0.0	2.0	18.0	26.0	69.2	2.0	3.0	66.7	13.0	14.0	92.9	44	3	10	4	0	2	2
Dominique Wilkins	1	50	43.0	50.0	5.0	3.0	1.0	0.0	6.0	19.0	28.0	67.9	0.0	0.0		12.0	15.0	80.0	43	5	3	1	0	6	2