▁H eng elo , ▁and ▁finished ▁third ▁at ▁the ▁Super ▁Grand ▁Prix ▁meet ▁in ▁D oh a , ▁the ▁Golden ▁S pi ke ▁O stra va ▁and ▁the ▁Bis lett ▁Games . ▁Then , ▁in ▁July ▁ 2 0 0 7 ▁he ▁achieved ▁a ▁new ▁personal ▁best ▁time ▁of ▁ 1 : 4 4 . 7 8 ▁minutes ▁at ▁the ▁Grand ▁Prix ▁meet ▁in ▁Ath ens . ▁A ▁fifth ▁place ▁at ▁the ▁All - A frica ▁Games ▁was ▁followed ▁by ▁the ▁entrance ▁in ▁the ▁ 2 0 0 7 ▁World ▁Championships . ▁Che p kir w ok ▁reached ▁the ▁final ▁round , ▁and ▁in ▁an ▁unus ually ▁tight ▁race , ▁where ▁all ▁eight ▁run ners ▁finished ▁in ▁the ▁range ▁of ▁ 1 ▁minute ▁ 4 7 ▁seconds , ▁Che p kir w ok ▁finished ▁fourth ▁with ▁ 1 : 4 7 . 4 1 . ▁This ▁was ▁ 0 . 0 2 ▁seconds ▁behind ▁the ▁bronze ▁medal ist , ▁and ▁ 0 . 0 1 ▁second ▁ahead ▁of ▁the ▁fifth ▁pla cer . ▁R ounding ▁off ▁the ▁season , ▁Che p kir w ok ▁finished ▁sevent h ▁at ▁the ▁ 2 0 0 7 ▁World ▁Athletics ▁Final . ▁ ▁In ▁the ▁ 2 0 0 7 – 0 8 ▁ind oor ▁season ▁Che p kir w ok ▁competed ▁at ▁the ▁ 2 0 0 8 ▁World ▁Ind oor ▁Championships . ▁He ▁reached ▁the ▁semi - final ▁round , ▁finished ▁fourth ▁there ▁but ▁did ▁not ▁progress ▁to ▁the ▁final . ▁During ▁the ▁summer ▁he