Curt Schilling announced his retirement on Monday after six All-Star appearances, three World Series championships and a reputation as one of baseball's big-game performers. “This party has officially ended,” Schilling wrote on his blog. “After being blessed to experience 23 years of playing professional baseball in front of the world's best fans in so many different places, it is with zero regrets that I am making my retirement official.” Schilling, 42, last pitched in 2007 when he helped the Boston Red Sox defeat the Colorado Rockies in the World Series. The right-hander, who also played for the Baltimore Orioles, Houston Astros, Philadelphia Phillies and Arizona Diamondbacks, had a career 10-2 record in the postseason.