Giants Postseason History The postseason history of the New York and San Francisco Giants: World Series (Won 8, Lost 12) 2014 -- Beat Kansas City Royals, 4-3 2012 -- Beat Detroit Tigers, 4-0 2010 -- Beat Texas Rangers, 4-1 2002 -- Lost to Anaheim Angels, 4-3 1989 -- Lost to Oakland Athletics, 4-0