At BOLDERBoulder, we get 10 rolling kilometers at more than 1,600 m, a massive wave start, neighborhood noise, and a Folsom Field finish. Early registration is open now; the $75 entry is still an estimate. This is the easy Colorado racecation pick for partners because the morning behaves like a city event, not a remote expedition. The catch is congestion: honest pace seeding matters if we want room to run.
Better info coming — we're still verifying 5 fields on this race.
Why we'd pick it
- The 100 m climbing estimate is useful for planning, not a verified pacing number.
- Open · Direct entry — no lottery to lose.
- A non-racing partner gets a real weekend here — 5/5.
- Race day usually sits 8–23°C, about 25% chance of rain.
The course
The 10 km route starts near 30th and Walnut, works through north Boulder neighborhoods, and finishes inside the University of Colorado's Folsom Field. It is rolling rather than flat and sits above 1,600 m throughout. The huge wave start makes pace placement matter, while Memorial Day sun can build before later runners reach the stadium.
