Personal
- Parents are Derek and Wanda Harrison
- Also recruited by Clemson, Florida State, Marquette and Wisconsin
Before BYU
Christ School
- Played two seasons for David Gaines
- As a senior helped Christ School to a 32-5 overall record, a 12-0 league record and the NCISAA State Title
- Named NCISAA 3A All-State
- Earned first-team Asheville Citizen-Times All-WNC honors
- Shared team MVP honors with Marshall Plumlee (Duke)
- A Jordan Brand Classic Regional All-Star
- Named CAA All-Conference and CAA Player of the Year
- Averaged 12.7 points, 4.7 rebounds, 1.8 steals and 1.7 assists and hit 53 threes
- As a junior averaged 12.5 points and 5.0 rebounds on a team that included six other Division I-bound players
- Helped the Greenies to a 37-2 record and the 2010 North Carolina 3A state title
- Played at Greenwood High School in South Carolina prior to Christ School
- Played for Dion Bethea for Carolina Ravens AAU team
- Helped the Ravens take second in the nation