Whakakiia te rerenga e whai ake nei: I whanau ia i Halen, i tiimata tana whakangungu me te karapu oma R.F.C. de Liège ana i puta tuatahi ia ki te International Cross Country Championships i te tau 1971, i te 32 i te waahanga rangatahi. I hoki mai ia i te tau e whai ake nei, a ka noho i te tekau ma ono. I te
1973 IAAF World Cross Country Championships (te tīmatanga o te kaupapa IAAF) i riro i a ia tana mētara tuatahi o te ao i te ahua o te mētara parahi rangatahi.