The Colby-Bates-Bowdoin rivalry, or simply the CBB, is one of the best in the country in Division III sports.

While football has received the most attention with the CBB rivalry between the three Maine colleges, other sports also take the head-to-head meetings between the schools very seriously.

The men's and women's crew compete each spring in the Presidents' Cup between Colby, Bates, and Bowdoin. 
The football games are played in the final three weeks of the season. In recent times, the Mules play Bates in week six, while Bowdoin takes on the Bobcats in week seven. Colby and the Polar Bears close out the CBB championship in the final week of the season.
The winner of the football rivalry gets to keep the CBB trophy for one year. If the three teams tie for the title, the school with the trophy gets to keep it for another year. 
The three football teams started playing each other in 1892. Colby and Bowdoin have the third-longest rivalry in the history of NCAA Division III football.