Cika wannan jumla: Shekaru uku bayan haka, a
Wasannin Afirka na 2003 a Abuja, Najeriya, Thirsk ya tattara jimlar lambobin yabo guda uku: azurfa biyu a tseren mita 50 (27.04) da mita 100 (57.60), da tagulla guda a tseren mita 200 (2:09.79).