What happened: Major League Baseball, the NFL, NBA, NHL and WNBA all hold games Monday night, Oct. 26. The slate pairs World Series play and WNBA Finals action with regular-season football, basketball and hockey.

Why it matters: The convergence places two postseason chases on the same night as three regular-season slates. Such five-way overlaps remain rare on the sports calendar and split the national audience.

What to watch: Games run concurrently Monday evening before series play continues later in the week.