Henry James and James Robinson are tied for playing the fewest minutes in a game with 20+ points, with 10 minutes on the court.

least minutes in an nba game with 20 point
Interpreted as:
least minutes by a player in an NBA regular-season game with 20 or more point
4/15/1997James12/30/1996Robinson1/8/1969McGlocklin2/5/1993James12/26/1980Jeelani3/24/1979James2/29/1976Holland11/21/2008Villanueva3/28/2021Green1/17/1987Bailey12/12/1984Thibeaux12/1/1984Long1/12/1982Grunfeld3/9/1980Maravich1/4/1980Mengelt10/15/1966Siegfried11/7/2021Muscala1/15/2019Evans3/2/2015Dragic1/15/2013Lowry2/25/2021Jones11/28/2018Harris10/26/2021Jokic1010111212121313141414141414141414151515151515
NAMEDATETMOPPMINPTSREBASTSTLBLKTOVFGMFGAFG%3PM3PA3P%FTMFTAFT%PF+/-
Henry JamesHenry James4/15/1997ATLATLvsNJNNJN10242100071070.07977.833100.02+25
James RobinsonJames Robinson12/30/1996MINMIN@CLECLE1023111007977.86785.733100.03+20
Jon McGlocklinJon McGlocklin1/8/1969MILMILvsNYKNYK112382102441.733100.01
Henry JamesHenry James2/5/1993SACSAC@DENDEN12202110281080.01333.33560.04
Abdul JeelaniAbdul Jeelani12/26/1980DALDALvsDENDEN12207001061060.0008988.93
Aaron JamesAaron James3/24/1979NOJNOJvsCLECLE12201000091090.02366.70
Wilbur HollandWilbur Holland2/29/1976ATLATL@PORPOR13201010101471.4003
Charlie VillanuevaCharlie Villanueva11/21/2008MILMILvsNYKNYK13206100181266.7010.04580.02+13
JaMychal GreenJaMychal Green3/28/2021DENDENvsATLATL14207110071258.33560.03475.00+7
Thurl BaileyThurl Bailey1/17/1987UTAUTA@SASSAS14209011191850.0010.022100.02
Peter ThibeauxPeter Thibeaux12/12/1984GSWGSW@LALLAL142262113101471.4002450.04
John LongJohn Long12/1/1984DETDET@INDIND14211010091275.00033100.00
Ernie GrunfeldErnie Grunfeld1/12/1982KCKKCK@DENDEN14244131291275.01250.05771.45
Pete MaravichPete Maravich3/9/1980BOSBOSvsWASWAS14203100181650.00044100.02
John MengeltJohn Mengelt1/4/1980CHICHIvsSDCSDC14211100091181.80033100.02
Larry SiegfriedLarry Siegfried10/15/1966BOSBOSvsSFWSFW14215181457.155100.02
Mike MuscalaMike Muscala11/7/2021OKCOKCvsSASSAS1420400205683.33475.07977.82+8
Tyreke EvansTyreke Evans1/15/2019INDINDvsPHXPHX1520401016875.011100.07887.53+12
Goran DragicGoran Dragic3/2/2015MIAMIAvsPHXPHX1521411015955.622100.099100.05+7
Kyle LowryKyle Lowry1/15/2013TORTOR@BKNBKN1521120005771.44580.077100.05+16
Tyus JonesTyus Jones2/25/2021MEMMEMvsLACLAC15202310091181.82366.7000+6
Devin HarrisDevin Harris11/28/2018DALDAL@HOUHOU1520140206875.05683.333100.02+29
Nikola JokicNikola Jokic10/26/2021DENDEN@UTAUTA1524660018988.933100.05771.41+7
Matt BullardMatt Bullard3/7/1998HOUHOU@PHXPHX1520200008988.94580.0000+17
Matt GeigerMatt Geiger12/14/1996CHACHA@CHICHI15204100491369.2002366.73-6
Results may be incomplete. StatMuse has complete game-level data for minutes played going back to the 1982-83 season.