Boston Red Sox – 8 World Series Championships
Established in 1908, the Red Sox suffered for a long time from “The Curse of The Bambino,” having been left out of a World Series title since they traded away Babe Ruth after winning the World Series in 1918. They broke the curse with a 2004 title. Here’s every year the Sox have won the World Series: 1903, 1921, 1915, 1916, 1918, 2004, 2007, and 2013.