Kammala jumla mai zuwa: Dasko ya yi gasa sau hudu a Gasar Cin Kofin Duniya ta IAAF, sau biyu ga Tarayyar Soviet da sau biyu ga Rasha. Mafi kyawunsa shi ne matsayi na 32 a
Buga na shekara ta 1991. Sauran wasanninsa biyu na duniya sun kawo na goma a cikin mita 3000 a gasar zakarun duniya ta 1989 IAAF da kuma bayyanar a zagaye na farko na mita 5000 a gasar zakarun duniya ta 1991.