Personal
- Parents are Alan and Kathryn Hadley
- Wife's name is Chloe
- Brother is former BYU linebacker Spencer Hadley
- One of eight children
Before BYU
- Rushed for 2,516 yards and state-record 47 touchdowns as a junior at Connell High School while also scoring three more touchdowns on defense and special teams
- Finished high school career with 6,881 rushing yards and scored a state-record 746 points
- Had 168 rushing yards and three touchdowns, including scoring runs of 70 and 40 yards, in state title game as a senior
- Won two 1A state titles (2009, 2011)
- 1A Player of the Year (2009, 2010)
- Played running back and defensive back
- Had 2,162 rushing yards as a senior and was coached by Zach Fife