Hakeem Olajuwon had the most games in the playoffs with 10+ points and 8+ blocks, with 5 games.

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most nba playoff games with 10 points and 8 blocks or more
Interpreted as:
most NBA playoff games by a player with 10 or more points and 8 blocks or more
OlajuwonO'NealHowardDuncanRobinsonWilliamsBynumMourningEwingMutomboColemanListerAbdul-Jabbar5322211111111
NAMEGPPTSBLKMPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINREBASTSTLTOVPF+/-
Hakeem OlajuwonHakeem Olajuwon51304343.826.011.83.62.48.63.610.419.852.50.00.05.26.678.82195918121819
Shaquille O'NealShaquille O'Neal3872440.329.014.76.00.38.04.011.716.371.40.00.05.711.051.5121441811211+66
Dwight HowardDwight Howard2351743.317.518.52.50.58.55.07.012.058.30.00.03.510.035.0873751107+4
Tim DuncanTim Duncan2451743.022.516.55.50.08.54.010.019.052.60.00.50.02.55.545.5863311085+18
David RobinsonDavid Robinson2581635.029.010.52.50.08.01.510.012.083.30.00.09.011.578.370215036
Robert Williams IIIRobert Williams III111922.711.09.01.01.09.00.05.08.062.50.00.01.02.050.02391102+5
Andrew BynumAndrew Bynum1101035.510.013.00.01.010.01.05.07.071.40.00.00.00.036130111+23
Alonzo MourningAlonzo Mourning120934.020.09.03.00.09.00.09.016.056.30.00.02.04.050.03493004+5
Patrick EwingPatrick Ewing125843.025.012.01.02.08.03.011.021.052.41.01.0100.02.02.0100.043121234
Dikembe MutomboDikembe Mutombo110844.010.016.03.00.08.04.03.09.033.30.00.04.07.057.144163044
Derrick ColemanDerrick Coleman121948.021.014.08.02.09.04.09.018.050.02.03.066.71.01.0100.048148242
Alton ListerAlton Lister111831.011.06.02.01.08.03.03.06.050.00.00.05.06.083.33162134
Kareem Abdul-JabbarKareem Abdul-Jabbar134839.034.09.03.02.08.01.013.019.068.40.00.08.011.072.73993212
StatMuse has game-level data for blocks going back to the 1983 playoffs.