 Wanjiru akahwina mujaho wekufamba makiromita makumi maviri kuAfrican Record paakakunda mujaho uyu mumakwikwi eAfrican Championships muna 2010achiverenga maawa 1:34:19. Nhoroondo yapfuura 1:36:18 yakanga iri yaSusan Vermeulen wokuSouth Africa uye yakaiswa muna 1999. Wanjiru akanga atova nekodhi yeKenya nguva 1:39.50, achiiisa paakakunda mukombe weAfrican Championships muna 2008. Pakutanga muna 2004, akanga aisa mutsva 20 makiromita National rekodhi 1:41:00 muNairobi. 