Lou Williams had the most games by a player off the bench with 20+ points, with 213 games.

$most 20 point games off the bench\$

Interpreted as:

most 20 or more point regular-season games by a player off the bench\

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	+/-
Lou Williams	213	5,274	29.3	24.8	2.9	4.4	1.0	0.2	2.1	7.8	15.8	49.7	2.7	6.0	44.5	6.4	7.3	87.6	6,230	623	932	222	48	452	302	+1161
Jamal Crawford	190	4,526	31.1	23.8	2.4	3.1	1.0	0.2	1.9	8.2	15.9	51.4	2.9	6.2	46.2	4.6	5.2	88.2	5,915	449	588	190	44	363	287	+1007
Ricky Pierce	182	4,508	29.8	24.8	2.7	2.1	1.0	0.2	1.6	9.2	16.1	57.1	0.6	1.4	40.3	5.8	6.6	87.9	5,428	497	386	176	43	294	500
Eddie Johnson	166	4,143	30.2	25.0	4.3	2.3	0.7	0.2	2.0	9.8	18.1	54.3	1.0	2.3	44.9	4.3	4.9	87.9	5,013	720	383	123	27	325	452	+5
Kevin McHale	144	3,395	31.2	23.6	7.8	1.7				9.2	14.6	62.9	0.2	0.4	40.0	5.0	5.9	85.0	4,499	1,127	238				409
Dell Curry	138	3,160	29.1	22.9	3.4	2.4	1.5	0.3	1.6	9.2	16.3	56.3	2.5	4.7	52.8	2.0	2.3	86.5	4,009	475	333	202	41	223	322	+36
Jordan Clarkson	129	3,091	29.9	24.0	4.2	3.1	0.9	0.2	1.9	8.9	17.0	52.4	3.2	7.2	43.7	2.9	3.4	86.5	3,862	537	400	122	22	242	228	+660
Thurl Bailey	111	2,671	34.8	24.1	6.6	1.8	0.5	1.5	2.3	9.4	17.6	53.4	0.0	0.1	22.2	5.2	6.2	83.5	3,865	731	195	58	161	259	247
Manu Ginobili	100	2,393	28.5	23.9	4.1	3.9	1.6	0.4	2.3	7.6	13.9	55.1	2.8	5.7	49.5	5.8	6.6	88.6	2,851	413	388	156	35	231	216	+730
Ben Gordon	99	2,486	30.9	25.1	3.0	2.9	0.8	0.2	2.5	8.5	16.8	50.8	2.9	5.7	51.6	5.1	5.7	89.0	3,062	301	290	79	17	243	261	+319
JR Smith	96	2,413	31.1	25.1	4.4	2.6	1.3	0.2	1.6	9.1	17.3	52.7	4.0	8.1	48.7	3.0	4.0	74.4	2,983	419	246	122	19	158	230	+819
Jason Terry	94	2,266	33.6	24.1	2.1	3.6	1.2	0.2	1.6	9.0	16.6	54.3	2.8	5.9	47.4	3.2	3.7	87.1	3,161	200	339	114	21	146	155	+496
Vinnie Johnson	92	2,178	28.7	23.7	3.7	3.7				9.9	16.9	58.4	0.2			3.7	4.5	82.5	2,641	342	340				224
Detlef Schrempf	88	2,032	34.2	23.1	9.4	3.8	1.0	0.3	2.3	7.7	13.4	57.5	0.4	1.0	38.8	7.3	8.7	84.5	3,013	829	330	84	28	200	308	-10
Walter Davis	87	2,039	26.6	23.4	2.7	2.6	1.0	0.1	1.7	9.9	17.8	55.5	0.4	1.3	31.2	3.3	3.7	88.7	2,318	235	230	85	6	144	211
Montrezl Harrell	84	1,995	28.2	23.8	7.7	1.7	0.7	1.1	1.5	9.3	13.9	66.5	0.0	0.3	11.5	5.2	7.6	69.0	2,365	645	145	56	95	128	224	+575
Quintin Dailey	80	1,949	28.8	24.4	3.3	2.8	0.9	0.1	1.9	9.2	16.7	55.0	0.1	0.4	22.6	5.9	7.0	84.1	2,307	260	226	73	9	151	217
Leandro Barbosa	78	1,827	30.2	23.4	2.7	2.6	0.9	0.2	1.5	8.6	14.9	57.5	2.8	5.3	53.0	3.4	4.0	85.3	2,352	210	200	73	13	115	165	+286
Mike Woodson	74	1,820	30.1	24.6	3.3	2.7		0.7		9.6	16.7	57.7	0.2			5.1	6.2	82.8	2,227	246	203		49		194
Dale Ellis	72	1,709	30.4	23.7	3.9	1.5	0.6	0.2	1.5	9.0	15.6	58.0	2.9	5.0	58.1	2.8	3.5	77.6	2,190	283	109	46	14	105	163	+62
Malik Monk	70	1,689	29.0	24.1	3.4	4.1	0.8	0.4	1.9	8.6	15.7	55.0	3.5	7.7	46.0	3.3	3.8	88.0	2,030	240	290	53	28	133	127	+453
Terrence Ross	69	1,691	28.4	24.5	3.5	1.4	0.9	0.4	1.2	8.4	15.7	53.5	4.2	8.6	48.8	3.6	4.0	89.1	1,963	244	98	64	25	81	118	+311
Al Harrington	66	1,631	33.6	24.7	7.2	1.5	1.0	0.3	1.9	9.1	17.6	52.0	2.5	5.6	44.5	3.9	5.3	74.3	2,219	474	99	69	22	125	217	+198
Clifford Robinson	66	1,576	31.9	23.9	6.3	2.1	1.2	1.6	1.8	9.4	17.2	54.3	0.5	1.4	36.6	4.6	6.4	72.7	2,105	416	137	82	108	120	218	+85
Nick Young	65	1,534	29.9	23.6	2.7	1.4	0.7	0.2	1.6	8.0	15.0	53.5	2.9	5.7	51.1	4.7	5.4	86.8	1,944	175	88	45	14	104	173	+16