Iditarod Invitational: The world’s toughest bike race? If you think riding a fat bike through snow sounds fun , the Iditarod Trail Invitational (ITI) might change your mind. This isn’t your average winter ride. Its route takes riders through unmarked, brutal and potentially life-threatening terrain through the frozen wilderness of Alaska, where survival skills matter just as much as pedalling power.
In 2025, the ITI will follow the southern route, meaning competitors will face the infamously remote stretches of trail between Ophir and Kaltag. For the handful of cyclists brave (or foolish) enough to attempt it, this means deep snow, unpredictable river crossings and the occasional wildlife encounter. There are three versions of the race; the 150, the 350 and the 1000. Each number representing the number of miles the athletes will cover. View this post on Instagram A post shared by Iditarod Trail Invitational (@itialaska) The route: no signs, no mercy
Starting at Knik Lake, just outside Anchorage, the ITI sends racers into the unknown, navigating entirely by GPS, instinct and questionable life choices. Checkpoints? Sure, there are a few, but don’t expect luxury. Racers get seven stops along the 350-mile route to McGrath, each offering varying levels of hospitality—from basic snacks to meals and tent lodging. Beyond that? It’s all on you.
The checkpoints are spaced out just far enough to remind you that you’re alone in the wilderness:
Checkpoint 1 – Butterfly Lake (Mile 25): A warm welcome, some snacks, and a false sense of security.
Checkpoint […]
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