Magic Johnson had the best winning percentage when playing 500+ games, winning 74.0 percent of the time.

which player has the highest winning percentage ever in history with a minimum of 500 games played

NAME	GP	W%	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
Magic Johnson	906	.740	36.7	19.5	7.2	11.2	1.9	0.4	3.9	6.9	13.2	52.0	0.4	1.2	30.3	5.5	6.5	84.8	33,245	17,707	6,559	10,141	1,724	374	3,506	2,050
Larry Bird	897	.736	38.4	24.3	10.0	6.3	1.7	0.8	3.1	9.6	19.3	49.6	0.7	1.9	37.6	4.4	5.0	88.6	34,443	21,791	8,974	5,695	1,556	755	2,816	2,279
K.C. Jones	676	.731	25.9	7.4	3.5	4.3				2.8	7.3	38.7				1.7	2.7	64.7	17,501	5,011	2,399	2,908				1,816
Michael Cooper	873	.729	27.1	8.9	3.2	4.2	1.2	0.6	1.6	3.5	7.4	46.9	0.5	1.4	34.0	1.5	1.8	83.3	23,635	7,729	2,769	3,666	1,033	523	1,429	2,329
Kawhi Leonard	696	.727	31.8	20.0	6.4	3.0	1.7	0.7	1.6	7.2	14.5	49.9	1.6	4.1	39.1	3.9	4.6	86.2	22,103	13,937	4,443	2,120	1,196	454	1,140	1,169	+4301
Tom Heinsohn	654	.726	29.4	18.6	8.8	2.0				7.3	18.0	40.5				4.0	5.1	79.0	19,254	12,194	5,749	1,318				2,454
Manu Ginobili	1,057	.721	25.4	13.3	3.5	3.8	1.3	0.3	2.0	4.3	9.7	44.7	1.4	3.8	36.9	3.2	3.9	82.7	26,859	14,043	3,697	4,001	1,392	319	2,116	2,212	+5468
Tim Duncan	1,392	.719	34.0	19.0	10.8	3.0	0.7	2.2	2.4	7.4	14.6	50.6	0.0	0.1	17.9	4.2	6.1	69.6	47,368	26,496	15,091	4,225	1,025	3,020	3,381	3,304	+8910
Sam Jones	871	.718	27.9	17.7	4.9	2.5				7.2	15.8	45.6				3.3	4.1	80.3	24,285	15,411	4,305	2,209				1,735
Bill Russell	963	.717	42.3	15.1	22.5	4.3				5.9	13.4	44.0				3.3	5.8	56.1	40,726	14,522	21,620	4,100				2,592
Tony Parker	1,254	.711	30.5	15.5	2.7	5.6	0.8	0.1	2.3	6.2	12.6	49.1	0.4	1.3	32.4	2.7	3.6	75.1	38,279	19,473	3,396	7,036	1,053	98	2,865	2,059	+5690
Danny Green	832	.707	25.1	8.7	3.4	1.5	1.0	0.8	1.0	3.1	7.3	42.1	1.9	4.7	40.0	0.6	0.8	80.5	20,898	7,204	2,827	1,277	853	634	825	1,454	+3449
Frank Ramsey	623	.705	24.6	13.4	5.5	1.8				4.7	11.8	39.9				4.0	4.9	80.4	15,330	8,378	3,410	1,134				2,158
Jim Loscutoff	511	.703	18.5	6.2	5.6	0.7				2.6	7.6	34.5				1.0	1.5	65.3	9,431	3,156	2,848	353				1,497
Dennis Rodman	911	.698	31.7	7.3	13.1	1.8	0.7	0.6	1.6	3.0	5.8	52.1	0.1	0.4	23.1	1.2	2.0	58.4	28,839	6,683	11,954	1,600	611	531	1,484	2,843	+827
Tom Sanders	916	.698	24.2	9.6	6.3	1.1				3.7	8.7	42.8				2.1	2.8	76.7	22,164	8,766	5,798	1,026				3,044
Kevin McHale	971	.694	31.0	17.9	7.3	1.7	0.4	1.7	1.9	7.0	12.7	55.4	0.0	0.2	26.1	3.7	4.7	79.8	30,118	17,335	7,122	1,670	344	1,690	1,893	2,758
Danny Ainge	1,042	.690	26.6	11.5	2.7	4.0	1.1	0.1	1.5	4.5	9.5	46.9	1.0	2.5	37.8	1.6	1.9	84.6	27,755	11,964	2,768	4,199	1,133	132	1,566	2,549
Kareem Abdul-Jabbar	1,560	.688	36.8	24.6	11.2	3.6	0.9	2.6	2.7	10.2	18.1	55.9	0.0	0.0	5.6	4.3	6.0	72.1	57,446	38,387	17,440	5,660	1,160	3,189	2,527	4,657
Scottie Pippen	1,178	.688	34.9	16.1	6.4	5.2	2.0	0.8	2.8	6.3	13.3	47.3	0.8	2.5	32.6	2.7	3.8	70.4	41,069	18,940	7,494	6,135	2,307	947	3,257	3,329	+2022
David Robinson	987	.682	34.7	21.1	10.6	2.5	1.4	3.0	2.4	7.5	14.4	51.8	0.0	0.1	25.0	6.1	8.3	73.6	34,271	20,790	10,497	2,441	1,388	2,954	2,417	2,835	+2454
Ronnie Brewer	502	.679	23.0	7.8	2.8	1.6	1.2	0.2	0.8	3.1	6.3	49.0	0.2	0.7	25.4	1.5	2.2	67.5	11,539	3,940	1,427	828	622	120	390	545	+820
Shaquille O'Neal	1,207	.679	34.7	23.7	10.9	2.5	0.6	2.3	2.7	9.4	16.1	58.2	0.0	0.0	4.5	4.9	9.3	52.7	41,918	28,596	13,099	3,026	739	2,732	3,310	4,146	+4887
Bobby Jones	774	.674	26.1	11.5	5.5	2.4	1.4	1.3	1.8	4.4	8.0	55.0	0.0	0.0	0.0	2.7	3.5	78.0	20,177	8,911	4,256	1,888	1,050	982	1,217	2,104
Julius Erving	836	.673	34.3	22.0	6.7	3.9	1.8	1.5	3.1	8.7	17.1	50.7	0.1	0.3	26.1	4.6	5.9	77.7	28,677	18,364	5,601	3,224	1,508	1,293	2,323	2,286