In 2010, Coiffic participated at the 2010 African Championships in Athletics in Nairobi, Kenya, where he only reached the semifinal in both the 100m and 200m events with a time of 10.51 and 21.43. This poor performance was repeated at the 2010 Commonwealth Games in Delhi, India where the sprinter only reached the quarter final of the 200m in 21.19 seconds and also being eliminated in the first rounds of the 4 × 100 m relay. With the retirement of Stephan Buckland in July 2010, Coiffic was thought to be the sprinter who would put Mauritian back at the international level but has disappointed many Mauritians due to his poor performances at the 2010 African Championships in Athletics and the 2010 Commonwealth Games.