 He was born in San Diego, California.Reinbach was selected by the Orioles in the 1970 MLB Draft out of University of California, Los Angeles, where he played for their UCLA Bruins baseball team.His rise through the Orioles Minor League system was highlighted by a splendid 1972 season, hitting a .348 batting average with 31 home runs, 113 RBI, and a 1.087 OPS between AA and AAA while being named Southern League most valuable player, to become the first player to win this award in the league's history.