Pedzisa mutsara unotevera:
akamhanyisa marathon yeBurundi mumutambo weOlympic wekutanga munyika yavo mumutambo weOlympic wa1996 muAtlanta, uko akapedza ari wechi90, aine nguva ya2:32:55. Muna 1997, Gashaka akahwina menduru yesirivheri muAthletics pa1997 Jeux de la Francophonie mumamita zviuru gumi.