He spent his childhood in the African country but his family was forced to leave when he was 11 years old due to the civil war and the fact that his father had served in the political party of the recently ousted president Mobutu Sese Seko.

Ngimbi relocated to the Netherlands and was a keen footballer in his teenage years and tipped to do well but decided to focus on kickboxing after making his amateur debut at 18 in Eindhoven representing the Duran Gym.

Due to an impressive knockout of his opponent he would be invited back to the states the following year to contest against Atlanta based Thai Khunpon Dechkampu for the W.K.A.

[5] In February 2009 Ngimbi had another attempt to qualify for the K-1 MAX via a regional event in Utrecht but lost at the quarter-final stage to Marco Piqué.

As the underdog, few expected the African Warrior to triumph but he pulled off a fifth round upset decision win against Direkçi to become the new It's Showtime 70MAX world champion.

In December 2011, Ngimbi shocked the kickboxing world when he stated that he will make one more defence of his belt, against Andy Souwer in June 2012, and then retire.