Course
A flat lakefront course at Boyd Lake State Park, Loveland, starting and finishing in the park. The organiser states the route is on paved walkways with about half a mile off road on the south loop. Aid stations are placed along the route, the number varying by distance.
Key dates
- !RegistrationOpen now
- ★Race daySat 31 Oct 2026
About
Brisk autumn running event at Boyd Lake State Park with five distance options including kids run, 15K, 10K, 5K, and 1 Mile Pumpkin race. The flat course features paved walkways, minimal elevation gain, lake views, wildlife, and fun post-race festivities.
Save Narrowleaf Lake Run to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Rim Rock Marathon & Half Marathon
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Bell Ringer 2-Miler
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.