Richmond led 35-28 at halftime by hitting 7 of 14 3's. The lead was 64-45 on a Davis dunk with 4:34 to play. St. Joe's raced back to cut it to eight with 2:22 to play but the Spiders hit enough free throws -- 21 of 30 overall -- to pull away again.
The Hawks had 70 shots, courtesy of 21 offensive rebounds, but shot 37 percent.
Mississippi State freshman guard Malik Newman will withdraw from the NBA draft, but sources told ESPN he might explore other opportunities besides returning to Mississippi State.
Seton Hall sophomore Isaiah Whitehead will stay in the NBA draft and not return for his junior season.
Washington State's trio of Josh Hawkinson, Conor Clifford and Ike Iroegbu have withdrawn from the NBA draft and will play their senior season with the Cougars.