Born in Amsterdam, Netherlands,Badr Hari began practicing kickboxing at the age of seven, under the guidance of former World Champion Mousid Akamrane. As a teenager he trained under Mohammed Ait Hassou at the Sitan Gym. When the Sitan Gym moved to Rotterdam, he joined the famous Chakuriki Gym ran by Thom Harinck.Under Harinck, Hari developed into one of the greatest kickboxing talents of the Netherlands.
Under Harinck's coaching, Hari suffered few losses. In 2003 he replaced Melvin Manhoef with only a few days notice, to fight Alexey Ignashov. Hari, outweighed by more than 18 kg, lost the fight by knockout, but gained a lot of respect for stepping up to such an opponent under those circumstances.
In January 2005, Hari left the Chakuriki Gym and joined Simon Rutz's It's Showtime team. After a few months' training at the Mejiro Gym he returned to Harinck's, but left again a couple of weeks later. Since then he has been coached by Mike Passenier, who has also trained Joerie Mes, Bjorn Bregy and Melvin Manhoef.
K-1 Heavyweight champion
On April 28, at K-1 World GP 2007 in Hawaii, Badr Hari and Yusuke Fujimoto fought for the newly introduced Heavyweight belt. Hari won the fight in 56 seconds with a kick to the chin. With the knockout Hari became the world's first ever K-1 Heavyweight champion.
Hari got his chance for revenge against Peter Graham, whose turning kick broke his jaw in 2006, in Hong Kong at the K-1 World Grand Prix 2007 in Hong Kong.He dropped Graham with a body punch and won by unanimous decision. After the bout, Hari and Graham seemed to bury the hatchet, hugging each other, although the two started taunting each other again at the post-fight press conference.
In September 2007 at the K-1 World GP 2007 Final Elimination, Badr Hari beat the K-1 World GP 2007 in Las Vegas tournament champion, Doug Viney, by a second round KO and qualified for his first K-1 World GP Final, held on December 8 in Yokohama, Japan.His winning streak came to an end with a decision loss to Remy Bonjasky, during quarter final.
* 2009 K-1 World Grand Prix runner up
* 2009-2010 It's Showtime Heavyweight world champion +95 kg (1st title defence)
* 2007-2008 K-1 Heavyweight champion -100 kg (1st title defence)
* 2002 WPKL Dutch Muay Thai champion