MLB September 11, 2024 5:18 pm 2024 MLB playoff format, key dates The 2024 MLB playoffs begin on Tuesday, Oct. 1, with four games in the Wild Card series. Here is how the MLB playoff format works and other key postseason dates. US & World Videos 0:57 Patrick Mahomes breaks more records in win over Falcons 0:49 Cowboys' Brandon Aubrey makes second-longest field goal in NFL history 0:49 Eagles' DeVonta Smith exits with concussion after helmet-to-helmet hit 2:11 NFL Sunday Week 3 stats and scores 0:57 Chargers' Justin Herbert exits early after aggravating ankle injury