**Current MLB postseason series feature several tight best-of-five Division Series matchups, with the White Sox, Rays, Dodgers, and Brewers holding 2-0 or 2-1 leads entering Wednesday's games.** Bullpen depth, late-inning relief usage, and potential for tied contests in elimination scenarios increase the likelihood of extra-inning games. Recent playoff history includes multiple 18-inning marathons, underscoring how pitching duels and roster management can extend contests well beyond regulation. With Game 3s and 4s scheduled across both leagues today and possible Game 5s looming, series pressure and fresh arms versus fatigued staffs represent the main variables that could push at least one contest into double digits or beyond.