Jason Collins had a 28.8 usage percentage in 2009-10.

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centers with a usage% over 25 in a single season playoffs since 2010
2009-10Collins2009-10Duncan2009-10Howard2009-10Magloire2009-10O'Neal2010-11Howard2010-11Powe2010-11Speights2010-11Stoudemire2011-12Duncan2011-12Garnett2011-12Vucevic2012-13Ayon2012-13Camby2012-13Dalembert2012-13Duncan2012-13Howard2012-13Landry2012-13Lopez2012-13Stoudemire2013-14Armstrong2013-14Hollins2013-14Howard2013-14Jefferson2013-14Seraphin28.825.525.628.126.327.831.627.725.425.226.529.027.132.329.526.127.125.528.325.932.426.328.025.431.8
NAMESEASONTMGPUSG%MPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Jason CollinsJason Collins2009-10ATLATL328.83.32.01.70.00.00.00.31.01.760.00.00.00.00.0106500017-3
Tim DuncanTim Duncan2009-10SASSAS1025.537.319.09.92.60.81.72.47.815.052.00.10.250.03.36.947.837319099268172427+3
Dwight HowardDwight Howard2009-10ORLORL1425.635.518.111.11.40.83.53.66.110.061.40.00.05.911.351.94972541551911495159+82
Jamaal MagloireJamaal Magloire2009-10MIAMIA128.15.00.01.00.00.00.01.00.02.00.00.00.00.00.050100011+5
Shaquille O'NealShaquille O'Neal2009-10CLECLE1126.322.111.55.51.40.21.22.24.48.551.60.00.02.84.366.024312761152132441-11
Dwight HowardDwight Howard2010-11ORLORL627.843.027.015.50.50.71.85.58.513.563.00.00.20.010.014.768.22581629334113325+15
Leon PoweLeon Powe2010-11MEMMEM431.63.51.81.00.00.00.00.00.52.025.00.00.00.81.075.0147400000-9
Marreese SpeightsMarreese Speights2010-11PHIPHI227.710.52.03.00.50.00.50.01.06.016.70.00.00.00.02146101040
Amar'e StoudemireAmar'e Stoudemire2010-11NYKNYK425.433.514.57.81.80.30.83.05.313.838.20.00.04.06.066.713458317131210-60
Tim DuncanTim Duncan2011-12SASSAS1425.233.117.49.42.80.72.11.57.214.649.50.00.10.02.94.170.74632431313910292130+137
Kevin GarnettKevin Garnett2011-12BOSBOS2026.536.919.210.31.51.21.52.28.016.049.70.10.225.03.34.081.37373842063023294459+138
Nikola VucevicNikola Vucevic2011-12PHIPHI129.03.01.01.00.00.00.00.00.01.00.00.00.01.02.050.031100000+3
Gustavo AyonGustavo Ayon2012-13MILMIL327.12.31.30.00.00.00.00.00.71.350.00.00.00.00.074000000+8
Marcus CambyMarcus Camby2012-13NYKNYK332.31.00.70.70.00.00.00.30.30.3100.00.00.00.00.032200011-8
Samuel DalembertSamuel Dalembert2012-13MILMIL129.59.01.03.00.01.00.02.00.02.00.00.00.01.04.025.091301023-4
Tim DuncanTim Duncan2012-13SASSAS2126.135.018.110.21.90.91.62.07.215.347.00.00.00.03.84.780.67353812144018344253+97
Dwight HowardDwight Howard2012-13LALLAL427.131.517.010.81.00.52.04.06.510.561.90.00.04.09.044.412668434281617-45
Carl LandryCarl Landry2012-13GSWGSW1225.520.511.85.21.40.60.21.64.38.352.00.00.03.24.373.12461426217721929-32
Brook LopezBrook Lopez2012-13BKNBKN728.337.622.37.41.40.93.02.38.317.647.20.10.1100.05.66.388.626315652106211620+35
Amar'e StoudemireAmar'e Stoudemire2012-13NYKNYK425.98.33.82.30.00.00.00.81.33.338.50.30.3100.01.01.0100.03315900039-2
Hilton ArmstrongHilton Armstrong2013-14GSWGSW732.42.41.10.60.30.00.30.60.61.150.00.00.10.00.00.30.0178420246-20
Ryan HollinsRyan Hollins2013-14LACLAC526.31.80.60.60.00.00.00.20.20.825.00.00.00.20.2100.093300013+1
Dwight HowardDwight Howard2013-14HOUHOU628.038.526.013.71.80.72.83.29.717.754.70.00.06.710.762.523115682114171925-6
Al JeffersonAl Jefferson2013-14CHACHA325.435.318.79.30.70.31.70.38.717.749.10.00.01.31.780.0106562821517-29
Kevin SeraphinKevin Seraphin2013-14WASWAS431.81.50.00.50.00.00.00.30.00.80.00.00.00.00.060200011-9
StatMuse has season-level data for usage percentage going back to the 1978 playoffs.