Toppin is the first player in the history of Dayton's program to earn the honor, which is given annually to college basketball's most outstanding player from the past season.
He's also the first player from the Atlantic 10 Conference to receive the award since Jameer Nelson in 2004.
"I never changed what I did. I always get in the gym, work on my craft, whether that's getting extra shots up or weights and stuff," Toppin said on "SportsCenter," according to ESPN's Myron Medcalf. "But I just felt like, with the guys I had around me and the coaches I had around me and the family I had around me, they pushed me every single day to be the person and the player that I am. So I thank them every single day for that."
The 22-year-old has now secured a sweep of college basketball's top individual honors for 2019-20. Toppin previously won Naismith Player of the Year, AP Player of the Year, NABC Player of the Year, and the Oscar Robertson Trophy. He also claimed the Karl Malone Award for being the top power forward in the nation earlier Tuesday.
This past season, Toppin led the Flyers to a 29-2 record with strong averages of 20 points, 7.5 rebounds, 1.2 blocks, and one steal per game.
In March, the sophomore announced his intention to hire an agent and declare for the upcoming NBA draft, forfeiting his last two years of NCAA eligibility.
Toppin beat out Iowa's Luka Garza, Kansas' Udoka Azubuike, Marquette's Markus Howard, and Seton Hall's Myles Powel for the Wooden Award.