The roofs at Milwaukee’s American Family Field and Tampa Bay’s Tropicana Field could shape the World Series, from unusual ball rulings to whether the games are played entirely indoors. Milwaukee’s roof is expected to be closed for Games 1 and 2, while Tropicana Field is always enclosed; postseason officials, not the home team alone, decide whether a retractable roof moves.

By the Numbers
  • 200 fair balls had hit Tropicana Field’s catwalks through the start of the 2026 season.
  • Five fair catwalk hits have occurred in the postseason; all were home runs.
  • Milwaukee’s roof hotline is (414) 902-4636.
Yes, But

Roof-related calls can turn on where a ball strikes and lands. In Milwaukee, a ball hitting a roof structure over fair territory is in play, but one over foul territory is dead; at Tropicana Field, the result depends on which of its four catwalk rings the ball hits.

State of Play
  • Milwaukee’s roof will likely be closed for the first two games, with temperatures forecast near 60 degrees at first pitch.
  • Tropicana Field has no open-roof option.
  • If Milwaukee’s roof stays closed, this would be the first World Series played entirely indoors.
Bottom Line

The roofs aren’t just part of the scenery: they can change a ball’s path, determine a ruling and potentially make this a fully indoor Fall Classic.