UDallas Seavey wanqoba umqhudelwano wesithupha wokushayela inja emjahweni we-Iditarod. Umjaho waqala ngoMashi 2 wama-mushers angama-38 ngokugijima emcimbini e-Anchorage. Wayengowokuqala wase-Alaska ukunqoba umqhudelwano kazwelonke wase-USA ngo-2003. Ngo-2005, waba ngumdlali omncane kunabo bonke owasebenzisa umjaho - futhi ngo-2012, waba ngumpetha wayo omncane kunabo bonke.