Dee ihe na-aga n'ihu maka paragraf a - Oliver Mintzlaff sonyere ugboro abụọ na ọkara marathon ụwa egwuregwu: ọ kwụsịrị 70 na 1998 IAAF World Half Marathon Championship na Uster, 80 na 1999 IAAF World Half Marathon Championship
na Palermo.