The split-finger fastball is making a comeback, with its usage in the postseason doubling from last year. World Series Game 6 starters Kevin Gausman and Yoshinobu Yamamoto have been leading the charge. Toronto used splitters a league-high 9.3% of the time during the regular season. Gausman has thrown his splitter 41.4% of the time in the postseason. The pitch was popularized by players like Bruce Sutter and Jack Morris, but its use declined due to injury concerns. Now, with advancements in pitch design, pitchers have found new ways to grip and use it effectively.