In 68 days · Sun, Sep 13, 2026
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Sunday, September 13th, 2026
9830 Riverdale Road, Thornton CO
10K · 5K
About this race
🏃♂️ Race Overview
Rocky Mountain Road Runners holds a monthly Trophy Series in the Denver area. We provide a low-key, low-cost racing environment. Everyone is welcome to run with us!
🕒 Race Details
- Date: 2026-09-13
- Location: Riverdale Ballfields, 9830 Riverdale Road, Thornton, Colorado, 80229
- 10km Start: 8:00 am + your handicap
- 5km Start: Approximately 15 minutes after the first 10km starters
🏅 Race Format
The 10km race uses a handicap start system, slow-to-fast, spread over ~30 minutes. This gives everyone a chance to win. We'll use your estimated finish time to assign you a start time with others the same speed.
All 5k racers will start ~15min after the first 10km starters.
📍 Course Information
- Course Type: Both distances are out-and-back on a mix of paved and smooth gravel.
- Parking: Plenty of parking at the park.
✨ Important Notes
The Trophy Series races use a unique, handicap start and scoring system. 10k racers start from slow to fast giving everyone a chance to win. When you register and pick up your number, we'll help you choose an appropriate start time that fits your estimated time.
🔗 Registration Link
For more information and to register, please visit: RMRR September Trophy Series
Course map
Train with a club
Run clubs near Thornton to train with before race day.
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