Mezue ahịrịokwu a:
2004 IAAF World Half Marathon Championships, Adanech kwụsịrị 16th na oge nke 1: 1: 50, n'oge ahụ ọ kachasị mma. Mgbe o lekwasịrị anya na 10,000 mita na ọkara marathon na mbido ọrụ ya, ọ kwagara na marathon zuru oke na 2005. Ọ gbara ọsọ na Reims à Toutes Jambes wee merie na 2005 na oge nke 2:35:55. N'afọ 2006, ọ gbasoro nke ahụ na ebe nke asatọ na 2006 Berlin Marathon na oge nke 2:36:48 na ebe nke atọ na 2006 Rome Marathon na oge nke 2:27:38. Adanech emeriwo Rock 'n' Roll Arizona Marathon ugboro abụọ; na 2007, o meriri na oge nke 2:31:43, na afọ na-esote ọ meriri na oge nke 2:31:14, na-agbasa ihe ndekọ ahụ na usoro. Ọsọ ikpeazụ ọ gbara bụ 2008 Rotterdam Marathon; ọ gbara nke abụọ na oge kachasị mma nke 2:27.32.