Monsterdash - Denver
Always double-check with the organizer's website! This page may contain affiliate links.
Event Overview
The Monsterdash - Denver takes place on October 24, 2026, at Sloan's Lake Park South. This Halloween-themed event centers around a course known for being fast and flat, featuring views of the mountains and fall foliage. The race is limited to 600 participants and follows a criterium-style layout.
Course Details
The event utilizes a loop system around the park. Participants in the 5 km race complete a single loop, while those in the 10 km category complete two loops. The 10 km course includes three water stations located at the 1.5-mile, 3.1-mile, and 4.5-mile marks. A lead cyclist guides the front of the race to assist with navigation.
Distances and Categories
- 5 km
- 10 km
- Kids Mile
The Kids Mile is an out-and-back mini loop course intended for children aged 3 to 12. Parents are permitted to run alongside their children during this portion of the event.
Festival and Expo
A sports expo operates throughout the morning, featuring approximately 12 local vendors and a coffee truck. Post-race activities include a carnival-style atmosphere with grilled food, popcorn, cotton candy, and carnival games. The event encourages the use of costumes, with a costume contest held for categories such as best family costumes and original designs. Specific landmarks, such as large inflatable clowns and a selfie wall, are located at the start and finish area.
Participant Information
All runners in the 5 km and 10 km events begin together. Age group awards are presented for the top three finishers in each category. Packet and race chip pickup occurs on-site at Sloan's Lake Park South on the morning of the event. Visit the organization's website for the most recent information.
