Roel Mannaart

Roel Mannaart (born 10 February 1994) is a Dutch kickboxer. He is a former K-1 WORLD GP Heavyweight Champion. He also competed for Glory.

Mannaart was ranked as a top ten heavyweight by Combat Press between July 2019 and July 2021, peaking at #7.

Kickboxing career Manaart beat Semmie Onoiafie at Fighting Rookies in May 2016. He won the fight by a second round TKO. He would notch up three more wins in the Dutch circuit, defeating Michael Lorenz, Thomas Bridgewater and Nico Pereira Horta.

Mannaart participated in the 2017 K-1 Heavyweight Grand Prix, being scheduled to fight Masahiro Iwashita in the quarterfinals. He beat Iwashita by a first round knockout, but lost to Ibrahim El Bouni by knockout in the semifinals.

Four months later, Mannaart was scheduled to fight Antonio Plazibat for the K-1 Heavyweight title at K-1: K'FESTA.1. Roel won the fight by unanimous decision.

Mannaart subsequently signed with Glory as well, and fought Daniel Škvor at Glory 59: Amsterdam. He beat Skvor by unanimous decision. In his next fight with Glory, Mannaart was scheduled to fight Kirill Kornilov, whom he beat by unanimous decision.

Mannaart was scheduled to defend his K-1 title against Chris Bradford, at K-1 World GP 2019 Yokohamatsuri. He knocked Bradford out in the first round.

Roel Mannaart returned to Glory at Glory 75: Utrecht to fight Sergej Maslobojev. Maslobojev won the fight by a first round TKO, with Mannaart suffering a broken jaw during the bout.

Following the loss to Maslobojev, Mannaart returned to K-1 to defend his Heavyweight title in July of 2025. He would face former K-1 Cruiserweight champion, K-Jee. Mannaart won the fight via KO in the second round, dropping K-Jee multiple times, before finishing him with low kicks.

Championships and accomplishments K-1 2018 K-1 World GP Heavyweight Championship Two successful title defenses

Kickboxing record