[SuziQ]

He's also an award-winning Iditarod dog sledder, which is something that only the toughest men can handle.

It's not the Iditarod that Todd runs, it's the Irondog, and it's done on snow machines (snowmobiles). Both are tough races, though, requiring endurance, and persistence.

[Windflier]

It's not the Iditarod that Todd runs, it's the Irondog

Yep. I remembered that after I posted. Too bad we can't edit our own posts here.