Terry Cummings messed around and got a triple-double versus the Mavericks on January 16, 1987.

terry cummings last triple-double
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NAMEDATETMOPPTD3MINPTSREBASTSTLBLKTOVFGMFGAFG%3PM3PA3P%FTMFTAFT%PF+/-
Terry CummingsTerry Cummings1/16/1987MILMILvsDALDAL145391510605162661.50071258.35
StatMuse has game-level data for triple-doubles going back to the 1950-51 season.