Dayton offered Ambrose, who's from Toronto, Ont., a scholarship in November. He's a 6-foot-8 forward from the Andrews Osborne Academy in Willoughby, Ohio.
Ambrose talked about his top 10 choices with PhenomHoopReport.com and said of Dayton, "They have been with me since day one. That has always been something to me because how they are close to home. Also, I like the role they have me in and their play style is what I like."
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Also on Ambrose’s list are Saint Louis, Virginia Commonwealth, Arkansas, California, Illinois, Virginia Tech, Florida, Clemson and Arizona State.
Ambrose ranks 85th in the 2020 class, according to 247Sports.com. Rivals.com ranks him 110th.
Dayton has one commitment from the 2020 class. Lukas Frazier, a 6-foot-4 guard from Lake Catholic High School in Mentor, announced his verbal commitment in June.
Dayton has two scholarships open in 2019 and two opening in 2020, one of which Frazier will fill.
Dayton recruiting targets
» 2020: Andre Curbelo | Posh Alexander | Max Amadasun | Luke Kasubke | Hassan Diarra | Desmond Polk | Zed Key | Madior Seye and D.J. Gordon | Keon Ambrose | Zach Benton | Isaiah Rivera| John Hugley | AJ Hoggard | Jalen Bridges | Tony Sanders Jr.| Andersson Garcia | Jamal Mashburn Jr. | Kam Farris | Jaylen Murray | Obina Anochili-Killen
» 2021: Wesley Cardet | Franck Kepnang | Jonathan Kuminga | Rafael Pinzon
» 2022: Ramel Lloyd