By Kyle Wood Underdogs prevailed in historic fashion over the weekend. Rich Strike won the Kentucky Derby on Saturday evening at 80-1 odds, the second-longest odds for a winner in the race’s 148-year history. Later that night, Dmitry Bivol scored a massive upset against Canelo Alvarez to retain his title as light heavyweight champion. And in the NBA and NHL playoffs, quite a few underdogs won to extend their series. Catch up on all the action from the weekend and get ready for tonight’s games with Winners Club. NBAThe 76ers were in bad shape late last week. They trailed the Heat, 2-0, and Joel…