Bolder Boulder 10K

Loveland, Colorado, United States

6.2 miles (10.0 km) · 471 ft elevation gain · Loop · road · Race

Route facts

Distance	6.2 mi (10.0 km)
Elevation gain	471 ft (144 m)
Average gain	76 ft per mile (14 m per km)
Runnable	95% of the route
Climbs / descents	0 climbs, 0 descents
Profile shape	Back-loaded climb
Difficulty score	5.6 of 100
Surface	road
Route shape	Loop
Type	Race

Grade breakdown

Grade band	Share of route
Flat	17%
Mild uphill	37%
Moderate uphill	5%
Mild downhill	34%
Moderate downhill	7%

Questions about Bolder Boulder 10K

How much elevation gain does Bolder Boulder 10K have?

Bolder Boulder 10K has 471 ft (144 m) of elevation gain over 6.2 miles (10.0 km). That averages 76 ft of gain per mile.

How difficult is Bolder Boulder 10K?

The difficulty score for Bolder Boulder 10K is 5.6 of 100. That is harder than 47.1% of routes at a similar distance. About 95% of the route is runnable at typical trail effort; the rest is steep enough that most runners hike.