3 all Africans Games and 9 world championships (TOGO Team), including the Olympic games. She first competed at the 2002 African Athletics Championships in Radès, Tunisia, where she attained a semi-final finish in the women's 400 metres. 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.