Front Range Ultra Dayze

Peace. Loveland. Ultra-running.
Welcome To Front Range Ultra Dayze!
Up to 100 hours of ultra-running madness in Loveland, CO.

2025 Race Schedule:
The timed races will have multiple start times/dates. You are allowed to start late, but your time starts according to the schedule below. Therefore, your ending time/date will not change if you start late.

Time-based races:
100-hour – starts Thursday 8/28 @10:00 AM (ends Monday @2:00 PM)
72-hour – starts Thursday 8/28 OR Friday 8/29 @10:00 AM (ends Sunday OR Monday @10:00 AM)
48-hour – starts Friday 8/29 OR Saturday 8/30 @10:00 AM (ends Sunday OR Monday @ 10:00 AM)
24-hour – starts Saturday 8/30 OR Sunday 8/31 @ 10:00 AM (ends Sunday OR Monday @ 10:00 AM)
12-hour – starts Saturday 8/30 OR Sunday 8/31 @ 10:00 AM (ends Saturday OR Sunday @ 10:00 PM)

Time-based runners are allowed to stop at any time. They do not have to go for the entirety of their chosen duration to receive their awards or results.

Distance-based runners are also allowed to pick from multiple start dates seen below:

Distance-based races:
200-mile – starts Thursday or Friday @ 10:00 AM (ends Monday @2:00 PM)
100-mile – starts Thursday, Friday, or Saturday @ 10:00 AM (ends Monday @2:00 PM)
No matter which start date you choose, all distance-based races end at 2:00 PM on Monday. If you do not finish your distance before that time, you are a DNF. We do not allow drops in distance at the race. You must finish the distance you signed up for or you are a DNF. Keep in mind, that the later you start your distance-based race, the shorter your cutoff will be. For example, for the 200-mile race, if you start on the latest date, you will have a 52-hour cutoff. Alternately, if you start on Thursday, you will have 100 hours to finish.