Bradley is the son of John and Leslie Christensen. He has three older siblings, Andrew, Lara and Alex. His great-grandfather played football for the Detroit Lions (1934-37) and has been noted for scoring 13 points in 13 seconds for the University of Utah (vs. Colorado College). Bradley started diving at age 9 and now trains up to five hours a day six days a week. His favorite dive is 407C. He is a high school diving All-American and state champion. Bradley enjoys science (chemistry), writing, design and sports. He will attend Stanford in the fall of 2013.