Most rebounds in a team's first 20 games of an NBA season since 1969-70
Wilt Chamberlain (1970-71 LAL) leads with 408 rebounds through LAL's first 20 games of 1970-71, first of 22,197 player-seasons since 1969-70.
Players with the most rebounds through their team's first 20 games of a season since 1969-70. 22,197 careers have the whole window.
2,825 player-seasons from before 1969-70 sit out: the box score didn't record rebounds in every game until then.
739 player-seasons sit out: a game inside the window has no line recorded.