Whakaotihia te rerenga e whai ake nei: Ko Osano te rangatira i Hapani i te haurua tuatahi o te tau 1992, kaore i hinga me nga wikitoria tae atu ki te Chiba International Cross Country me Shizuoka International. I wikitoria ano ia i te Bolder Boulder me Bay to Breakers i te United States. Ko Osano te tuatoru i te whakataetae whakamātautau a Kenyan mo te 10,000 m, engari i roto i te whakatau tautohetohe i whakatau nga kaiwhakawhiwhi ki te tuku i a Moses Tanui, kaore i oti i a ia te tawhiti i taua whakataetae. I whakakahoretia tana tīmatanga Olympic, kaore a Osano i whakataetae ano i te tau 1992. I hoki mai ia ki te mahi i te Haratua 1993 ka haere ki te ara tiriti o Amerika, ka wikitoria i te Peachtree Road Race, Boilermaker Road Race me Bix 7 Road Race. Na tōna āhua, i kōwhiria ia mō te kapa o Kenya i te
Ko te 1993 IAAF World Half Marathon Championships. Koinei anake tana hawhe marathon i tera tau, a ko ia te tekau ma toru i te wa o te 62:10 meneti, i awhina i te roopu ki te wikitoria me te awhina a Lameck Aguta tuawha. I kitea koinei tana putanga whakamutunga o te ao.