2018 Race Registration Open

Thanks for your interest in the Arrowhead Ultra 135. We are no longer accepting applications as our roster is full. As you may know, we limit our roster to maintain solitude on the trail and comply with our permit limits.

Thanks - Ken

The application for the 2018 Arrowhead Winter Ultra race can be downloaded HERE. Non US racers please use payment link in the RACE INFO/REGISTRATION article for credit card payment.

The 14th annual AH135 will be Jan 29th to 31st, 2018. We will take race veteran apps starting 9-1-17 and rookie apps 10-1-17. Please make sure you have a qualifying race - see below. Our roster is limited to ~150 racers and fills quickly. Pray for cold and snow - we look forward to seeing all the racers, sponsors, and volunteers.