Rubuta ci gaba don wannan sakin layi - A shekara talatin da huɗu, Kejzar ya fara halartar wasannin Olympics na bazara na 2000 a Sydney, inda ya sanya na sittin da biyu daga cikin masu gudu ɗari a tseren marathon na maza, tare da lokacin 2: 26:38, daƙiƙa goma sha huɗu a bayan Zebedayo Bayo na Tanzania. Ya nuna wasan kwaikwayon tauraruwa a Wasannin Olympics na bazara na 2004 a Athens, lokacin da ya gama na hamsin da huɗu a tseren marathon
a karo na biyu, inda ya kafa lokacinsa mafi kyau a gasar Olympics na 2:23:34.