With LCS series now underway between the Brewers-Dodgers and Guardians-Rays and the World Series still ahead, the 2026 MLB postseason offers multiple best-of-seven opportunities for extended contests. Playoff rules omit the automatic runner in extra innings, allowing games to stretch well beyond regulation as bullpens and lineups grind on. No 13+ inning marathons have occurred yet through the division series, which aligns with trader pricing that assigns solid but not overwhelming probability to 11- or 12-inning games while discounting deeper outcomes. Remaining high-stakes matchups, including potential Game 5-7 scenarios, keep longer extras plausible before the postseason concludes.