When Does March Madness 2025. From there, the men’s basketball games for the 2025 ncaa tournament start with the first four. 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.

Madison square garden has hosted 80. 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.