Rambai muchinyora ndima ino - Kirwa akamiririra nyika yaakagamuchira yeFinland kumitambo yeOlympic yezhizha ya2008 muBeijing, kwaakakwikwidza mumakwikwi emarathon evarume
. Akabudirira kupedza nhangemutange iri panzvimbo yegumi nemana nemasekondi makumi maviri nemaviri kumashure kweSpain José Manuel Martínez, kunze kwenguva yake yakanakisisa ye2:14:22.