Mezue ahịrịokwu na-esonụ: Johannes gbara ọsọ oge ruru eru (2:37:00) nke awa 2:33:06 na Seoul International Marathon na March 2008, na-eme ka ọ ruo eruo maka 2008 Summer Olympics. N'ọsọ marathon nke Olimpik, ọ nọrọ n'ọkwa nke iri anọ. Ọ nọchitere anya mba ya ọzọ na ọkwa ụwa na 2009 World Championships na Athletics, mana ọ gwụchara 56th na oge dị nwayọ nke awa 2:50:19. Ọ laghachiri na Dublin Marathon, na-emecha dị ka onye na-agba ọsọ. N'afọ na-eso ya, o mere otu n'ime ihe ngosi mba ụwa kachasị mma, na-abịa 16th na
2010 IAAF World Half Marathon Championships.