It's 10 (96-'05) STRAIGHT DIVISION TITLES! With 4 WS CHAMPIONSHIPS (26 Total) 6 AL CHAMPIONSHIPS (39 Total) 45 Total Playoff Appearances Compare that to Boston: 1WS (6 Total) in past 10 years! 1AL (10 Total)in past 10 years! only 17 total playoff appearances. Both teams started in 1901 under different names. 26