MLB September 11, 2024 2:18 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 1:08 Reports: Caitlin Clark named 2024 WNBA Rookie of the Year 0:53 Former Vikings Pro Bowl QB announces he has dementia 3:03 Fans hold wake to mourn Oakland Athletics 2:58 Oakland A's fans mourn loss of team 1:09 Stats, highlights from Cowboys win over Giants in Week 4