Michael Jordan had the most games with 40+ points against the Bucks, with 12 games.

Interpreted as:

most 40+ pt regular-season games by a player vs bucks

	NAME	GP	PTS	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	REB	AST	STL	BLK	TOV	PF	+/-
1	Michael Jordan M. Jordan	12	540	40.1	45.0	5.7	4.3	2.8	0.8	16.0	26.8	59.6	0.3	1.2	21.4	12.8	15.2	84.1	67.2	1.3	4.4	2.3	481	68	52	34	9	28	36	+6
2	Allen Iverson A. Iverson	7	325	43.0	46.4	3.9	6.1	1.9	0.1	16.1	31.4	51.4	2.7	5.3	51.4	11.4	14.1	80.8	61.7	1.4	2.4	3.7	301	27	43	13	1	26	17	+29
3	LeBron James L. James	6	268	42.2	44.7	7.8	7.8	1.8	0.3	16.0	26.8	59.6	4.7	8.5	54.9	8.0	10.5	76.2	71.0	1.2	6.7	4.5	253	47	47	11	2	27	15	+32
4	Tracy McGrady T. McGrady	6	267	40.7	44.5	9.0	4.3	2.0	0.2	16.0	30.8	51.9	4.5	8.5	52.9	8.0	10.5	76.2	62.8	2.2	6.8	4.2	244	54	26	12	1	25	15	+32
5	Jalen Brunson J. Brunson	4	176	37.1	44.0	5.8	5.5	0.5	0.0	16.0	29.5	54.2	3.3	8.5	38.2	8.8	10.0	87.5	64.9	1.5	4.3	2.3	148	23	22	2	0	9	7	+34
6	DeMar DeRozan D. DeRozan	4	175	41.6	43.8	5.0	7.5	1.0	0.8	15.5	27.5	56.4	2.0	4.3	47.1	10.8	11.8	91.5	67.0	1.0	4.0	2.3	166	20	30	4	3	9	14	0
7	Karl Malone K. Malone	4	181	37.5	45.3	11.5	3.0	2.0	0.5	15.5	23.8	65.3	0.0	0.0		14.3	16.8	85.1	72.7	3.0	8.5	4.5	150	46	12	8	2	18	11	+29
8	Jayson Tatum J. Tatum	3	123	34.9	41.0	6.7	3.3	2.0	0.0	14.0	21.7	64.6	6.0	10.0	60.0	7.0	7.7	91.3	81.9	0.7	6.0	1.3	105	20	10	6	0	4	5	+75
9	Bradley Beal B. Beal	3	144	39.1	48.0	2.0	4.0	0.7	0.3	15.3	29.3	52.3	5.0	9.3	53.6	12.3	14.0	88.1	67.6	0.3	1.7	4.7	117	6	12	2	1	14	8	-26
10	Vince Carter V. Carter	3	140	43.4	46.7	8.0	2.7	2.3	1.3	16.0	29.3	54.5	3.0	5.0	60.0	11.7	14.3	81.4	65.5	4.0	4.0	3.3	130	24	8	7	4	10	10	+17
11	Dominique Wilkins D. Wilkins	3	126	40.0	42.0	12.7	2.0	0.7	1.0	16.7	25.3	65.8	0.3	1.0	33.3	8.3	9.7	86.2	71.0	5.3	7.3	2.3	120	38	6	2	3	7	4
12	Bob Love B. Love	3	137	45.0	45.7	10.0	2.3			17.7	28.3	62.4				10.3	11.3	91.2	68.5				135	30	7				7
13	Luka Dončić L. Dončić	2	85	39.0	42.5	10.0	7.0	1.5	0.5	13.5	26.5	50.9	5.5	12.5	44.0	10.0	11.5	87.0	67.3	1.0	9.0	7.5	78	20	14	3	1	15	6	-28
14	Trae Young T. Young	2	84	34.2	42.0	7.0	7.5	0.5	0.0	15.5	29.0	53.4	6.5	11.5	56.5	4.5	4.5	100.0	67.8	1.5	5.5	3.5	68	14	15	1	0	7	4	-1
15	Joel Embiid J. Embiid	2	82	36.3	41.0	14.5	5.5	2.0	0.5	14.5	26.0	55.8	3.5	8.5	41.2	8.5	10.5	81.0	66.9	2.0	12.5	3.5	73	29	11	4	1	7	9	+7
16	James Harden J. Harden	2	82	38.2	41.0	8.0	7.5	1.5	0.5	12.5	27.0	46.3	5.0	13.0	38.5	11.0	11.5	95.7	63.9	1.0	7.0	5.0	76	16	15	3	1	10	6	+14
17	Kemba Walker K. Walker	2	81	38.4	40.5	6.5	3.5	1.0	0.5	14.5	26.0	55.8	5.5	12.0	45.8	6.0	7.0	85.7	69.6	2.0	4.5	2.5	77	13	7	2	1	5	2	-5
18	Russell Westbrook R. Westbrook	2	82	39.8	41.0	12.0	10.5	1.5	0.0	16.0	33.0	48.5	3.5	10.0	35.0	5.5	9.0	61.1	55.5	2.0	10.0	5.5	80	24	21	3	0	11	8	-18
19	Anthony Davis A. Davis	2	87	40.1	43.5	10.0	5.0	0.5	2.5	17.5	25.0	70.0	1.0	1.5	66.7	7.5	9.0	83.3	75.1	3.0	7.0	2.0	80	20	10	1	5	4	5	+14
20	Allan Houston A. Houston	2	94	43.5	47.0	2.5	3.0	0.0	1.0	13.0	27.0	48.1	5.0	12.0	41.7	16.0	16.5	97.0	68.6	1.0	1.5	1.0	87	5	6	0	2	2	7	+9
21	Stephon Marbury S. Marbury	2	82	44.5	41.0	4.0	9.0	0.0	0.0	13.5	22.5	60.0	4.5	8.0	56.3	9.5	12.5	76.0	73.2	0.5	3.5	1.5	89	8	18	0	0	3	3	+25
22	Reggie Miller R. Miller	2	81	39.0	40.5	4.0	3.0	0.5	0.5	12.5	18.0	69.4	6.5	9.5	68.4	9.0	10.0	90.0	90.4	0.5	3.5	1.0	78	8	6	1	1	2	2	+19
23	Joe Dumars J. Dumars	2	84	39.0	42.0	4.0	2.5	1.5	0.0	17.5	24.5	71.4	3.5	5.0	70.0	3.5	3.5	100.0	80.6	1.0	3.0	3.0	78	8	5	3	0	6	4
24	Michael Adams M. Adams	2	95	42.5	47.5	4.0	9.5	3.0	0.0	14.5	28.0	51.8	5.0	12.0	41.7	13.5	16.0	84.4	67.8	0.5	3.5	4.5	85	8	19	6	0	9	5
25	Charles Barkley C. Barkley	2	88	47.0	44.0	12.5	1.5	3.5	1.0	14.0	23.5	59.6	0.0	0.0		16.0	20.0	80.0	68.1	8.0	4.5	4.5	94	25	3	7	2	9	7