A triple-double is the accumulation of a double-digit number total in three of the five categories in a game. The most common way to achieve a triple-double is through points, rebounds, and assists. Oscar Robertson leads the all-time NBA list with 181 career triple-doubles and is, with Russell Westbrook, one of only two players ever to average a triple-double for a season. Westbrook currently holds the record for most triple-doubles in a season with 42.\n\nWho has the most triple-doubles ever in the nba?
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The relevant sentence in the passage is: Oscar Robertson leads the all-time NBA list with 181 career triple-doubles and is, with Russell Westbrook, one of only two players ever to average a triple-double for a season.
So, the answer is Oscar Robertson.
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