Kuenderera mberi kweiyi ndima - Pazera remakore makumi matatu nemana, Kejzar akaita kutanga kwake kwepamutemo kumaOlympics ezhizha ra2000 muSydney, kwaakaisa makumi matanhatu nemaviri kubva pavatambi zana mumutambo wemarathon wevarume, nenguva ya2: 26:38, masekondi gumi nemana kumashure kweTanzania Zebedayo Bayo. Akaratidza kuita kwenyeredzi pa 2004 Summer Olympics muAthens, paakapedza makumi mashanu nemana mumarathon
kwenguva yechipiri, achigovera nguva yake yakanakisisa yeOlympic yebasa ya2:23:34.