youngest active coaches to reach 800 wins:

Red Auerbach had 938 wins in his coaching career.

Interpreted as:

Youngest Active coaches to reach 800 or more regular-season wins:

	COACH	W	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF
1	Red Auerbach	938	1,419	241.6	103.0					38.9						25.2							342,835	146,160
2	Dick Motta	935	1,952	241.7	106.5					41.6			2.7			21.7	28.8	75.4					471,705	207,824						45,399
3	Jack Ramsay	864	1,647	241.3	110.5					43.9			0.7	2.7	26.6	22.5	29.9	75.0					397,380	181,984						41,578
4	Lenny Wilkens	1,332	2,487	241.5	102.8	44.4	24.0			39.8			3.1			20.7	27.6	75.2					600,505	255,733	110,457	59,687				55,022
5	Bill Fitch	944	2,050	241.3	104.9	45.0	23.9			41.9			2.3			19.7	26.6	74.1					494,750	214,960	92,158	48,916				49,383
6	Cotton Fitzsimmons	832	1,607	241.5	110.7					43.5			1.2			23.0	30.5	75.6					388,155	177,888						40,547
7	Larry Brown	1,098	2,002	241.6	99.9					38.1			2.9			21.2	28.6	73.9					483,755	200,029						46,943
8	Don Nelson	1,335	2,398	241.7	108.2					41.8			4.2			20.9	27.4	76.3					579,595	259,574						57,689
9	Jerry Sloan	1,221	2,024	241.6	101.3	41.8	25.2	8.2	5.3	37.9	79.0	48.0	3.1	9.0	34.8	22.4	29.4	76.3	55.1				488,910	205,077	84,581	51,046	16,672	10,714		48,925
10	Pat Riley	1,210	1,904	241.5	102.5	43.0	24.8			39.6	82.4	48.0	3.9			19.5	26.1	74.7	54.6				459,910	195,149	81,888	47,314				44,062
11	George Karl	1,175	1,999	241.6	104.8	42.1	23.7	9.1	5.0	39.3	83.3	47.1	5.4	14.9	36.0	20.9	27.7	75.6	54.9	12.2	29.9	15.2	483,035	209,431	84,105	47,422	18,189	9,952	30,385	46,119
12	Rick Adelman	1,042	1,791	242.0	104.0	44.0	23.6	8.4	4.6	39.0	85.4	45.7	5.8	16.4	35.2	20.2	26.6	76.1	53.5	13.0	31.0	14.9	433,440	186,184	78,849	42,238	15,057	8,282	26,719	37,464
13	Phil Jackson	1,155	1,640	241.8	103.1	43.7	24.1	8.4	5.0	39.5	83.7	47.2	5.1	14.4	35.6	19.0	25.7	73.7	54.2	13.2	30.4	14.1	396,550	169,073	71,619	39,569	13,721	8,254	23,059	35,442
14	Gregg Popovich	1,412	2,263	241.6	101.9	43.1	23.3	7.3	5.6	38.4	82.3	46.6	7.7	20.9	36.8	17.4	23.2	75.2	55.1	10.5	32.7	13.9	546,795	230,554	97,646	52,733	16,540	12,596	31,387	43,174
15	Doc Rivers	1,173	2,005	241.7	104.3	42.0	23.0	7.9	4.9	38.4	82.2	46.7	8.4	22.7	37.0	19.1	25.2	75.9	55.9	10.0	32.1	14.5	484,675	209,220	84,296	46,040	15,903	9,801	29,117	43,633
16	Rick Carlisle	999	1,877	241.8	103.5	42.0	23.0	7.5	5.0	38.2	83.5	45.7	9.5	26.5	35.8	17.7	22.7	77.7	55.4	10.1	31.9	13.7	453,805	194,337	78,824	43,243	14,003	9,352	25,638	38,219
17	Erik Spoelstra	801	1,383	242.0	104.3	42.0	22.9	7.8	4.8	38.5	82.5	46.7	9.8	27.0	36.2	17.5	22.8	76.6	56.4	9.6	32.5	14.0	334,670	144,231	58,089	31,667	10,729	6,591	19,357	26,897