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Challenge/ULTRA Distance Option Changes: Once registered, cyclists can switch any distance option except for the ULTRA distance. Once you have signed up for the ULTRA, you can switch the distance achieved at the finish line – only. In other words, if you sign up for the ULTRA, and you decide mid-ride to do the century, you can switch your distance at the finish with the timing company, not before the ride. You will get credit for the century ride and will be listed in the final results as having completed the century. (Why? Because we want the ULTRA riders to commit to the challenge of the ULTRA when they register. It’s all in the training! So be sure you want to commit before you register.)