Tuhia he haere tonu mo tenei whitianga - I whakatauhia e ia tana rekoata whaiaro mo te hawhe marathon o 1: 13: 03 i te 2005 IAAF World Half Marathon Championships
I Edmonton, i Alberta, i Kānata. Ko tana rekoata whaiaro i te marathon i puta i te wa o te Nagano Marathon i te 2006, me te waa o te 2: 29:46. I whakatauhia e Rillstone tetahi rekoata a motu mo te marathon i te 2007 IAAF World Championships i Osaka, Japan, me te waa o te 2:33:58, ka mutu i te wahi tekau ma toru.