December 1 is one of the most important days in the annual race calendar. Dozens of races open registration and many more will follow throughout the month. Quite a few will sell out on opening day.
Don’t hesitate. Now is the moment to sign up for that big goal race you have been eyeing. 👀 If you blink, you might miss it. (Photo credit top of page: Rim to River 100)
Start Dreaming
You’re looking for something and we have answers.
A coastal 🌊 getaway
Some new buckle bling ✨
A snowy ❄️ winter challenge
Something on skis 🤔
A loopy timed 🕰️ event to test your mettle
25 miles of big Colorado mountains ⛰️
Vertical Challenges ⬆️
And so much more. Don’t miss out on these much-loved races opening registration December 1-15!
While this is just a selection of the races you can find on UltraSignup.com, many of these will sell out quickly once registration opens! Check out other races that opened in the beginning of November and in the last two weeks!
Note: Many races open at midnight local time, which means they could be listed a day earlier or later depending on the time zone you live in. Click through to the individual race to verify.
These races give me a reason to engage in community and feel a part of something bigger than myself. They are one of the only times I feel truly alive, life circumstances have reduced my ability to participate but we try to get a hand full or so races in just for my mental health. Camaraderie keeps me coming back!
These races give me a reason to engage in community and feel a part of something bigger than myself. They are one of the only times I feel truly alive, life circumstances have reduced my ability to participate but we try to get a hand full or so races in just for my mental health. Camaraderie keeps me coming back!