From BR Bullpen
Tony Randazzo made his umpiring debut in the 1989 New York-Penn League and advanced to the Florida State League (1990-1991), Texas League (1992-1993), American Association (1994-1995) and Pacific Coast League (1996-1999). He joined the MLB staff in 1999. He worked the 2001 All-Star Game and 2012 All-Star Game.
Source: 2010 MLB Umpire Media Guide