Dee ihe ga-aga n'ihu maka paragraf a - Osano bụ onye kachasị na Japan na ọkara mbụ nke 1992, na-aga n'emeghị mmeri na mmeri gụnyere Chiba International Cross Country na Shizuoka International. O nwekwara mmeri ugboro ugboro na Bolder Boulder na Bay to Breakers na United States. Osano gbara onye nke atọ n'ọsọ ọnwụnwa nke ndị Kenya n'ọsọ mita 10,000, mana na mkpebi na-ese okwu, ndị na-ahọrọ họọrọ kama iziga Moses Tanui, onye na-emezughị ọbụna mezue anya ahụ n'ọsọ ahụ. Egwuregwu Olympic mbụ ya kụrụ afọ n'ala, Osano esoghị asọmpi ọzọ na 1992. Ọ laghachiri ime ihe na Mee 1993 wee gaa n'okporo ụzọ America, na-emeri na Peachtree Road Race, Boilermaker Road Race na Bix 7 Road Race. N'iburu n'uche ụdị ya, a họpụtara ya maka ndị otu Kenya na 1993 IAAF World Half Marathon Championships
Ọ dị mma. Nke a bụ naanị ọkara marathon ya n'afọ ahụ wee tinye nke iri na atọ na oge nke 62:10 nkeji, na-enyere ndị otu aka mmeri site na enyemaka nke anọ Lameck Aguta. Nke a bụ nke ikpeazụ ọ pụtara n'asọmpi mba ụwa.