Career
He got to the semifinals at the 2008 World Indoor Championships and the 2008 Olympic Games. At the 2008 Beijing Olympics he competed at the 100 metres sprint and placed second in his heat behind Richard Thompson in a time of 10.26 seconds. He qualified for the second round in which he improved his time to 10.16 seconds, finishing third behind Thompson and Tyson Gay, reaching the semi finals.
Together with Yannick Lesourd, Manuel Reynaert and Samuel Coco-Viloin he also competed at the 4x100 metres relay.
In their qualification heat they finished sixth in a time of 39.53 seconds, which meant elimination. In the 2009 season, Mbandjock began with modest times between 10.20 and 10.30 seconds.
Despite finishing out of the medals in fourth in the 100 m, he set a personal best of 20.67 seconds in the 200 m to take bronze at the 2009 European Team Championships. He competed in three events at the 2009 World Championships: he finished sixth in the 100 metres semi-finals, the second best performance by a European after finalist Dwain Chambers.
Next came the 200 metres competition, where he recorded a personal best of 20.43 seconds in his semi-final for fifth place.
He was eliminated at that stage, although he ran faster than compatriot David Alerte who did reach the final via the other semi-final. His final competition of the championships was with France in the 4 x 100 metres relay. The team reached the final and placed in eighth.