Mezue ahịrịokwu na-esonụ: Heymans nọchitere anya Namibia ọtụtụ oge, gụnyere na 1991, 1995,
Egwuregwu All-Africa nke 1999 na 2003. Ọ zọkwara asọmpi maka mba ya na 1994, 1998, 2002 na 2006 Commonwealth Games. Banyere Egwuregwu Olimpik n'oge ọkọchị, Heymans sonyere na 2000, 2004 na 2008 Summer Olympics. N'egwuregwu 2008, Heymans bụ onye na-ebu ọkọlọtọ mba ahụ na emume mmeghe. Heymans meriri asọmpi Transalp Mountain Bike nke mbụ na 1998 na nke mbụ Absa Cape Epic na 2004.