Jay Dee "B.J." Penn III, born on December 13, 1978, is a distinguished American former professional mixed martial artist and a fifth-degree black belt in Brazilian jiu-jitsu. Renowned for his exceptional skills, Penn made history as the first non-Brazilian to win the World Jiu-Jitsu Championship at the black belt level. His illustrious career in mixed martial arts includes competing in the Ultimate Fighting Championship (UFC) across multiple weight classes, including Featherweight, Lightweight, Welterweight, Middleweight, and Heavyweight/Openweight divisions.
Penn's accolades in the UFC are remarkable; he is a former UFC Lightweight Champion and UFC Welterweight Champion, making him one of only eleven fighters in UFC history to secure titles in multiple weight classes. His tenure as champion saw him unofficially unify the UFC Lightweight Championship and set a record for title defenses. Notably, he submitted the long-reigning champion Matt Hughes to capture the UFC Welterweight Championship, further solidifying his legacy.
Throughout his career, Penn was celebrated as one of the top pound-for-pound fighters in the world, with notable victories over opponents such as Din Thomas, Caol Uno, and Matt Serra. His contributions to the sport were recognized when he was inducted as the inaugural member of the Modern-era wing of the UFC Hall of Fame in 2015. UFC President Dana White acknowledged Penn's pivotal role in popularizing the lighter weight divisions, calling him the first crossover pay-per-view star for these categories.
In addition to his fighting career, Penn ventured into politics, running for governor of Hawaii in the 2022 gubernatorial election, although he was eliminated in the Republican Party primary. However, his later years were marred by controversy, including claims of familial impostors and multiple arrests for assault, raising concerns about his mental health.