RMRR September Trophy Series

Name: RMRR September Trophy Series
Start: 2026-09-13
End: 2026-09-13
Location: Thornton, Colorado

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Thornton, Colorado, United States

calendar_today 13 Sep, 2026

directions_run Running

language Official Website

sell $10

About the Event

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!

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.

Race Day Details

Time: 10k starts at 8:00 am + your handicap.*
5k starts approximately 15min after the first 10k starter.
Show up 30 minutes early to get your tag and warm up.
Location: Riverdale Ballfields, 9830 Riverdale Road, Thornton, Colorado, 80229
Course: Both distances are out-and-back on a mix of paved and smooth gravel.
Parking: Plenty of parking at the park.

* 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.

Races Offered

10k

Sep 13, 2026

straighten

Distance — 10K

terrain

Type — Running

timer

08:00

sell

$10.00

5k

Sep 13, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

08:15

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$10.00

Weather Overview

These values represent the 3-year monthly averages for September in Thornton.

Temp (°C)

Feels Like (°C)

thermostat 11.6° / 28.0°

wb_sunny 9.2° / 24.4°

Wind (km/h)

Humidity (%)

air 8.9 /

water_drop 45.0%