The following year, Kangni reached her breakthrough season by breaking both a national record and a personal best of 52.50 seconds at the 2003 IAAF World Championships in Saint-Denis, France.
[4] Following her elimination from the heats, Kangni announced that the Olympic games in Beijing was a "great feast for the sport", and also, represented the culmination of her career.
[5] Despite her sudden retirement from the Olympics, Kangni continued to build her success in the track and field by participating in numerous sporting events.
In 2010, she opted to focus on and compete for the heptathlon at the Meeting International de Maurice in Réduit, Mauritius, where she set a personal best and a national record-breaking score of 5,079 points.
[6] At the 2011 IAAF World Championships in Daegu, South Korea, Kangni made her comeback into the international scene as a sprinter for the 400 metres.