Ka kammala wannan jumla: Daga baya ya koma yin tseren marathon. Ya yi gasa ba tare da gamawa ba a Gasar Cin Kofin Duniya ta 2007, kuma ya gama na 41 a Gasar Cin Kofin Duniya ta 2007.
Wasannin Olympics na shekara ta 2008. Ya gudu mafi kyawun lokacinsa na awa 2:11:43 a watan Oktoba na 2008 a Istanbul Marathon kuma ya inganta har ya yi rikodin lokaci na awa 2:10:15 a 2009 Ljubljana Marathon, inda ya kasance na biyu a matsayi na karshe na William Biama na Kenya. Ya lashe Marathon na Düsseldorf a watan Afrilu 2010, yana kafa tarihin hanya da mafi kyawun lokaci na 2:08:32. Ya yi mummunan aiki a Lake Biwa Marathon a watan Maris na 2011 yayin da ya gama minti biyu a bayan manyan 'yan wasa 15. Mafi kyawun sa na shekara (2: 12: 07) ya zo ne a Gyeongju International Marathon, inda ya gama a matsayi na huɗu. Ya fafata a tseren marathon a wasannin Olympics na 2012, inda ya gama a matsayi na 25.