Sleepy Floyd droppin' 51 (29 in a quarter) on Magic and the Lakers in the 1987 playoffs. Warriors won the game. Lakers took the series (semis) 4-1.
*NBA.com - 29-Point Quarter, 39-Point Half, 51-Point Game; Game 4, 1987 Western Conference Semifinals:
"Not wanting to be swept out of the playoffs at the hands of the Lakers, Sleepy Floyd helped the Warriors overcome a 102-88 deficit entering the fourth quarter by scoring 29 points in the final stanza -- 39 in the second half -- and 51 overall. Floyd was 12-for-13 from the field in the fourth quarter as the Golden State lived to see another game. " - NBA.com *