Knox Jolie-Pitt, the 17-Year-Old Son of Brad Pitt, Can Almost Certainly Beat Up His Dad
Knox Léon Jolie-Pitt, the 17-year-old son of Angelina Jolie and Brad Pitt, was photographed leaving a Muay Thai session in Los Angeles this week, fresh from training and dressed in fight gear.
He’s been at the sport for years now. In July, on his 17th birthday, he won gold at the IKF Point Muay Thai Technical competition with Angelina and his twin sister Vivienne ringside. He’s since added at least one more title.
Knox Leon Jolie-Pitt in a Team Vasileus shirt and boxing shorts departs his Muay Thai training session in Los Angeles on May 4, 2026. Photo by BACKGRID.
Which raises a fun question. Is Knox, at 17, already stronger than Brad was at his Fight Club peak?
The case is better than you’d think. Brad was 5’11” and around 155 pounds at roughly 5 to 6 percent body fat for the 1999 film, built through a high-volume bro-split, boxing choreography work, and a punishing cut. It was an aesthetic build with a fight-movie veneer.
Knox Jolie-Pitt leaves Muay Thai training in Los Angeles on June 1, 2026. Photo by Backgrid.
Knox is roughly the same height, 19 years younger, and training in one of the most demanding striking sports on earth. Muay Thai, the “art of eight limbs,” develops explosive hip and leg power, rotational core strength, clinch and grip endurance, and the kind of dense, functional muscle that gym splits don’t build.
Angelina Jolie joins the “Coutures” cast at the Paris film premiere on February 9, 2026. Photo by Backgrid.
Add in the things a 17-year-old has that a 36-year-old doesn’t: peak natural testosterone, faster recovery, and an open development window. Photos from his recent training show developed shoulders, a thick core, and the heavy legs you only get from thousands of kicks.
Brad almost certainly still wins on pure leanness and the iconic look. Knox almost certainly wins on applied power, striking output, and fight-ready conditioning.
One of them trained to look like a fighter for a movie. The other one actually is one.
