Big Ten Basketball Tournament 2025 Formations. For the second consecutive week, we simply must begin our projection for the 2025 men's ncaa tournament with more marveling at what the sec has done thus far.… Rothstein reported, and o’neil confirmed, that the big ten conference is planning to invite just 15 of 18 teams into the big ten tournament starting with the 2025 edition.

This summer, the league will officially expand. The big ten conference will expand its men’s and women’s basketball tournament fields to 15 teams, an increase of one from previous years, which means that three teams will miss the conference tournament starting.