**Recent MLB postseason action has featured mostly standard-length Division Series contests amid several close series, with the lone extended game being a 10-inning NL Wild Card matchup between the Phillies and Braves.** The ongoing ALDS between the White Sox and Guardians, plus Rays-Yankees and Brewers-Padres NLDS tilts, remain competitive at 2-1 or 2-0 margins, where bullpen depth, late-inning relief usage, and elimination pressure can extend games through extra innings or high pitch counts. Historical records show multiple 18-inning postseason marathons in recent years, often tied to low-scoring pitching duels or resilient lineups, though 2026 Division Series starters and weather factors have not yet produced comparable length. Trader consensus reflects the potential for one or more ALCS or NLCS games to surpass current marks if series reach decisive later stages with rested or taxed arms.