Boulder Rez Marathon

Boulder Reservoir, Boulder, CO, USA
02 Aug, 2025 (Sat)

Running

10 km, 21.097 km, 30 km, 42.195 km

About the event

The event is run on a 10K loop around the Boulder Reservoir. You'll run on flat dirt road and trails.

Races offered by this event

You have 35 weeks to prepare

Half Marathon

02 Aug, 2025 (Sat) - 07:07
Running
21.097 km
Solo
On site
Mixed
Flat
Multiple loops

Marathon

02 Aug, 2025 (Sat) - 07:15
Running
42.195 km
Solo
On site
Mixed
Flat
Multiple loops

Marathon Relay

02 Aug, 2025 (Sat) - 07:15
Running
42.195 km
Relay
On site
Mixed
Flat
Multiple loops

3/4 Marathon

02 Aug, 2025 (Sat) - 07:25
Running
30 km
Solo
On site
Mixed
Flat
Multiple loops

10K

02 Aug, 2025 (Sat) - 07:40
Running
10 km
Solo
On site
Mixed
Flat
Single loop

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