Northcutt began training martial arts at the age of 4[6] and competed all over the world from a young age. His father, Mark, is a black belt in karate, and his older sister, Colbey, is an amateur kickboxing champion.[7] Sage has won a total of 77 world championships in karate.[3] At the age of 9, Northcutt became the youngest person ever to be on the cover of Sport Karate Magazine.[8] He is also an undefeated kickboxer, with his record standing at 15–0.[9] Additionally, despite only being on the Katy High School varsity wrestling team for two months, Northcutt finished fifth in the state in his weight class (170 lbs).[9] Sage was inducted into the Black Belt Magazine Hall of Fame in 2012.[4] He prides himself as being a wrestler and considers this his style alongside his kickboxing and TKD.
7 fights, 4 TKO, 3 submissions, 5 first round finishes and two second round finishes.
He's a crazy good athlete, his body control is amazing. Also extremely versatile and those kicks he's doing are really relaxed, smooth and quick. Going to be big in the UFC, mark my words. 19 years old at the moment.