March Madness 2025 Cities. March madness 2025 begins with first four games tuesday, march 18, in dayton, ohio, and ends with the final four on april 5 and 7 at the alamodome in san antonio. The ncaa only announces the locations for the next two years' worth of march madness.
The 2025 ncaa men’s basketball tournament will begin on march 18 with the first four games in dayton, played by the last four. March madness is the pinnacle of college basketball.