Rubuta ci gaba don wannan sakin layi - Osano ya mamaye Japan a farkon rabin shekarar 1992, ba tare da nasara ba tare da nasara ciki har da Chiba International Cross Country da Shizuoka International. Har ila yau, ya sake maimaita nasara a Bolder Boulder da Bay to Breakers a Amurka. Osano ya gama na uku a tseren gwajin wasannin Olympic na Kenya na mita 10,000, amma a cikin yanke shawara mai rikitarwa masu zaɓin sun yanke shawarar a maimakon haka su aika da Musa Tanui, wanda ya kasa ko da kammala nesa a wannan tseren. An yi watsi da wasansa na farko na Olympics, Osano bai sake fafatawa ba a 1992. Ya koma aiki a watan Mayu na 1993 kuma ya tafi hanyar zirga-zirgar titin Amurka, inda ya ci nasara a Peachtree Road Race, Boilermaker Road Race da Bix 7 Road Race. Ganin yanayin sa, an zaba shi ga tawagar Kenya a gasar IAAF ta Duniya ta Rabin Marathon ta 1993
Ka yi haƙuri. Wannan ne kawai rabin marathon a wannan shekara kuma ya sanya na goma sha uku a cikin lokaci na minti 62:10, yana taimakawa tawagar zuwa nasara tare da taimakon Lameck Aguta na hudu. Wannan ya zama bayyanarsa ta karshe ta kasa da kasa.