Pedzisa mutsara unotevera: Osano akakwikwidza kuKenya achiri muduku uye semumhanyi wechidiki akagoverana mune imwe sirivha yechikwata pa
1987 IAAF World Cross Country Championships (inotungamirwa nemukundi Wilfred Kirochi) asati adzoka muna 1989 kuzopedza wechina uye kubatsira Kenya kumutambo wechikwata pamwe chete nevatambi vevanhu Kipyego Kororia naStephenson Nyamau. Akakunda menduru yemunhu mumwechete pa1988 World Junior Championships muAthletics, achipinda mumakwikwi e20K, kwaakange ari mumhanyi wechipiri kuEthiopia's Zeleke Metaferia.