Pedzisa mutsara unotevera: Osano akakwikwidza kuKenya achiri mudiki uye semutambi wechidiki akagovana sirivheri muchikwata pa1987 IAAF World Cross Country Championships (inotungamirwa nemukundi Wilfred Kirochi) asati adzoka mu
1989 kuti vapedze vari vechina uye vabatsire Kenya kuhwina mukombe wechikwata pamwe chete nevakakunda menduru mumwe nemumwe Kipyego Kororia naStephenson Nyamau. Akakunda menduru yemunhu mumwechete pa1988 World Junior Championships muAthletics, achipinda mumakwikwi e20K, kwaakange ari mumhanyi wechipiri kuEthiopia's Zeleke Metaferia.