John Havlicek had the most games for the Celtics with 20+ points, with 711 games.

Interpreted as:

most 20 or more pt regular-season games by a player in celtics history

	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	John Havlicek J. Havlicek	711	18,772		26.4					10.5						5.4	6.6	82.8
2	Paul Pierce P. Pierce	651	17,569	38.5	27.0	6.6	4.0	1.6	0.6	8.8	18.2	48.2	2.1	5.1	41.8	7.3	8.9	81.5	60.8	1.0	5.6	3.0	25,077	4,291	2,590	1,029	396	1,970	1,909	+2359
3	Larry Bird L. Bird	625	17,790	39.9	28.5	10.3	6.4			11.2	21.3	52.5	0.9	2.2	41.5	5.2	5.8	89.3	59.6				24,913	6,464	4,016				1,592
4	Kevin McHale K. McHale	419	10,436	36.1	24.9	8.7	2.2			9.7	15.9	60.9	0.1	0.2	31.3	5.5	6.6	82.6	66.2				15,141	3,655	927				1,247
5	Bob Cousy B. Cousy	396	10,044		25.4					9.2						6.9	8.4	82.9
6	Sam Jones S. Jones	382	10,008		26.2					10.7						4.8	5.9	82.1
7	Jayson Tatum J. Tatum	375	10,872	36.0	29.0	8.0	4.2	1.1	0.7	10.0	20.5	48.7	3.4	8.6	39.5	5.6	6.6	85.0	61.9	0.9	7.1	2.6	13,490	3,007	1,591	431	251	966	805	+3016
8	Robert Parish R. Parish	351	8,536	36.2	24.3	12.1	1.8			9.9	16.3	60.6	0.0	0.0	0.0	4.5	6.1	75.0	64.0				12,692	4,231	640				1,023
9	Jo Jo White J. Jo White	329	8,215		25.0					10.7						3.5	4.2	84.6
10	Jaylen Brown J. Brown	314	8,524	34.8	27.1	6.3	3.4	1.2	0.4	10.1	19.6	51.7	2.8	7.0	39.8	4.1	5.5	75.3	61.8	1.1	5.1	2.5	10,922	1,971	1,059	376	128	786	846	+1913
11	Dave Cowens D. Cowens	309	7,576		24.5	15.3				10.4			0.0	0.2	0.0	3.7	4.6	80.3						4,726
12	Antoine Walker A. Walker	298	7,725	41.4	25.9	9.2	4.6	1.7	0.6	9.9	21.9	45.3	2.3	6.0	39.1	3.7	5.4	68.3	53.4	2.5	6.7	3.3	12,343	2,742	1,363	492	167	993	945	+101
13	Tom Heinsohn T. Heinsohn	293	7,349		25.1					9.9						5.2	6.6	79.3
14	Bill Sharman B. Sharman	289	7,285		25.2					9.6						6.0	6.7	90.3											795
15	Bill Russell B. Russell	236	5,555		23.5					9.4						4.7	7.7	61.4
16	Reggie Lewis R. Lewis	186	4,763	39.3	25.6	5.2	3.0	1.5	1.0	10.4	19.1	54.6	0.1	0.4	22.2	4.6	5.5	85.0	59.5	1.6	3.6	1.8	7,301	964	567	279	194	331	578
17	Ed Macauley E. Macauley	185	4,522		24.4					8.1						8.3	10.5	79.3
18	Isaiah Thomas I. Thomas	140	3,821	33.3	27.3	2.9	6.0	1.0	0.1	8.6	18.6	46.4	2.9	7.5	38.5	7.1	8.0	89.4	61.8	0.6	2.3	2.7	4,664	404	833	140	20	378	304	+661
19	Bailey Howell B. Howell	136	3,365		24.7					9.8						5.1	6.9	74.0
20	Cedric Maxwell C. Maxwell	120	2,870	38.4	23.9	9.2	3.0			8.0	12.3	64.7	0.0	0.0	0.0	8.0	10.0	79.8	71.5				4,604	1,101	361
21	Ray Allen R. Allen	116	2,777	37.6	23.9	3.5	2.8	0.9	0.2	8.5	15.1	56.0	3.5	6.9	51.4	3.5	3.8	92.4	71.4	0.7	2.8	1.6	4,365	409	324	109	26	185	248	+978
22	Frank Ramsey F. Ramsey	113	2,685		23.8					8.5						6.8	8.2	83.3											399
23	Kevin Garnett K. Garnett	97	2,205	33.4	22.7	9.6	3.1	1.4	1.1	9.3	15.6	59.7	0.0	0.2	16.7	4.0	4.6	87.1	64.3	1.8	7.9	1.7	3,244	936	299	135	111	169	224	+982
24	Don Nelson D. Nelson	97	2,293		23.6					8.7						6.2	7.6	80.7
25	Kyrie Irving K. Irving	92	2,561	34.2	27.8	4.6	6.2	1.5	0.5	10.3	20.1	51.2	3.2	7.4	43.1	4.1	4.5	89.5	63.0	1.0	3.7	2.6	3,146	426	571	134	46	241	214	+531