With its sixth consecutive victory, Richmond (19-12, 12-6) claimed the fourth seed for the conference tournament at the Barclays Center in Brooklyn, New York, and a bye into Friday's quarterfinals. Saint Louis, (11-20, 3-15) as the 14th seed, will play a first-round game Wednesday against 11th-seeded Duquesne.
Saint Louis' Reggie Agbeko had 13 points and 11 rebounds, both career highs, for his first double-double. Ash Yacoubou added 10 points for the Billikens, who have lost four in a row.
Richmond led by nine at halftime and went up by 15 with 17:11 left in the game. The lead varied between 12 to 18 points the rest of the way.