Devin Booker posted the most points by a player in the playoffs in his first playoff, with 601 points.

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most points scored by a player on their first playoff
BookerBarryErvingYoungLucasBoozerJamesPierceHamiltonDiawWorthyWalkerJohnsonJokicAbdul-JabbarTatumAytonWaltonAdamsMartinHerroBaylorHollinsWilliamsBibby601521518461403400400394383374371354354352352351347345341336335331328327324
NAMEGPPTSMPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINREBASTSTLBLKTOVPF+/-
Devin BookerDevin Booker2260140.427.35.64.50.80.23.79.621.544.72.06.232.16.06.790.58891241001848176+112
Rick BarryRick Barry1552140.934.77.53.913.132.640.38.510.580.96141135849
Julius ErvingJulius Erving1951839.927.36.44.52.21.210.720.552.35.87.182.175812285412345
Trae YoungTrae Young1646137.728.82.89.51.30.04.09.422.441.82.89.031.37.38.486.6603451522006435-7
Maurice LucasMaurice Lucas1940338.521.29.94.21.51.28.616.651.93.95.374.373118879282379
Carlos BoozerCarlos Boozer1740038.523.512.22.91.00.33.09.517.853.60.00.04.56.173.8654207501755152+5
LeBron JamesLeBron James1340046.530.88.15.81.40.75.011.223.647.61.64.833.36.79.173.7604105761896544-49
Paul PiercePaul Pierce1639442.024.68.64.11.71.33.87.618.940.31.96.528.87.59.876.46721376627206152+63
Richard HamiltonRichard Hamilton1738338.822.53.92.60.80.13.47.917.844.20.51.633.36.26.990.665966451315751+26
Boris DiawBoris Diaw2037439.818.76.75.20.91.12.87.614.552.60.20.442.93.44.476.179613310418225564+44
James WorthyJames Worthy2137133.717.75.02.71.30.51.97.813.059.90.00.150.02.03.360.97081055627113957
Antoine WalkerAntoine Walker1635443.922.18.63.31.50.43.48.219.941.12.66.838.53.14.078.1703138522465556+50
Dennis JohnsonDennis Johnson2235437.616.14.63.31.01.02.55.513.441.25.17.270.48271017223235663
Nikola JokicNikola Jokic1435239.725.113.08.41.10.92.69.418.650.61.64.039.34.75.684.655618211816133654+84
Kareem Abdul-JabbarKareem Abdul-Jabbar1035243.535.216.84.113.924.556.77.410.173.34351684125
Jayson TatumJayson Tatum1935135.918.54.42.71.20.52.26.513.747.11.23.732.44.35.184.5683835223104150+51
Deandre AytonDeandre Ayton2234736.415.811.81.10.81.11.37.010.665.80.00.01.82.473.68012602518242863+82
Bill WaltonBill Walton1934539.718.215.25.51.13.48.115.950.72.13.068.4755288104206480
Alvan AdamsAlvan Adams1934135.217.910.15.21.31.17.215.945.23.54.381.766819198242060
Kenyon MartinKenyon Martin2033637.516.85.82.91.21.32.66.515.242.40.10.522.23.85.569.17491165724255286+21
Tyler HerroTyler Herro2133533.616.05.13.70.40.12.05.713.243.32.36.137.52.22.687.070610777824231+1
Elgin BaylorElgin Baylor1333142.825.512.03.39.423.340.36.78.777.05561564352
Lionel HollinsLionel Hollins1932835.917.32.74.52.50.37.116.941.73.24.668.2682528547574
Deron WilliamsDeron Williams1732738.619.24.38.61.50.24.07.215.945.21.13.433.33.84.879.0657731462646849+11
Mike BibbyMike Bibby1632441.320.33.85.01.40.22.37.116.144.41.63.742.44.45.482.666160802333730+48