Kammala wannan jumla: Daniel ya fara zama na kasa da kasa a matsayin matashi a
1999 IAAF Gasar Cin Kofin Duniya, inda ta kasance ta goma a kowane mutum kuma ta taimaka wa Kenya ta lashe lambar azurfa ta tawagar. Daga baya ta mai da hankali kan nisan mita 10,000 kuma ta inganta daga minti 33:22.3 a 2004 zuwa minti 33:10.5 a 2006. A waccan shekarar ce ta fara tseren marathon a Nairobi Marathon kuma ta zama ta bakwai a cikin sa'o'i 2:42:31.