Date of birth: May 17, 1980 (Age: 46 as of September 2026)
Height: 6’ 5” (196 cm)
Weight: 256 pounds (116, 6 kg)
Hair color: Black
Eye color: Dark brown
Alistair Cees Overeem was born on May 17, 1980, in Hounslow, England, and grew up in the Netherlands. He competed professionally in mixed martial arts and kickboxing across several major organizations.
Overeem won the Strikeforce heavyweight championship, the DREAM interim heavyweight championship and the 2010 K-1 World Grand Prix. His UFC career included victories over former champions Brock Lesnar, Junior dos Santos, Frank Mir and Fabrício Werdum. He announced his retirement from combat sports in 2023.
The previous text focused on an old weight cut and treated professional fight-camp decisions as endurance advice. Those dated prescriptions were removed; an athlete’s competition weight and preparation vary by opponent, rules and medical supervision.
Updated details
Biographical and career details were reviewed and the article text was updated on September 7, 2026. Historical measurements and past routine descriptions are identified as such.
