Tulis hiji continuation for this paragraph - Osano competed for Kenya at an early age and as a junior athlete he shared in a team silver at the 1987 IAAF World Cross Country Championships. Osano geus jadi pamaen anu unggul dina kompetisi ieu ti saprak umurna ngora.
(dipingpin ku juara Wilfred Kirochi) saméméh balik di 1989 pikeun rengse kaopat jeung mantuan Kenya ka judul tim barengan medali individu Kipyego Kororia jeung Stephenson Nyamau. Manéhna meunang medali individu di 1988 World Junior Championships di athletics, ngasupkeun 20K ngajalankeun, dimana manéhna runner-up ka Zeleke Metaferia Étiopia.