Trail Mix
About this race
Trail Mix is two events, an off-road duathlon and a mountain bike race, on the same day! Two distances for each event.
The Trail Mix duathlon is a 2 mile run, 10 mile bike, 2 mile run (individual or team of 2 people, 1 runner and 1 biker)
The Half Mix duathlon is a 2 mile run and 5 mile bike.
The Trail Mix Competitive mountain bike race is 20 miles
The Trail Mix Sport mountain bike race is 10 miles.
Sign up for both a duathlon and a mountain bike race and receive a 25% discount at checkout!
The run loop is at https://www.strava.com/segments/29916486 and goes clockwise. The bike loop is at https://www.strava.com/segments/32772773 and goes counter-clockwise. Both courses and transition will be thoroughly marked.
All of the events are at the Atwood Park Trail System, 7074 Rydberg Rd, Rockford, IL 61109. Both runs and the ride will be on the off-road trails. A mountain bike is strongly recommended. Sign up as an individual or a team consisting of 2 people. Professional chip timing by Tri-3 Sports Timing. Your entry includes a custom Purist water bottle, your choice of meal from Sizz n Fizz food truck, and ice cream from Dairyhäus on site! There's not any packet pickup to worry about ahead of time. Pre-racing meeting for the duathlon will be at 8:45am. You must be checked in before then. The MTB course will be open for pre-riding at 11a with non race course trails open all day. Pre-race meeting at 11:45a. We will cap the total duathlon entries at 90 and the total mountain bike entries at 125. There is not race day sign up.
100% of proceeds for the event will be donated to further trail building and maintenance in the Rockford area.
This event is co-hosted by Rock River Multisport and Rockford Area Mountain Biking Alliance. Artwork donated by Aaron Johnson of Aaron Branding at www.aaronbranding.com.
Pick your distance
Duathlon
Individual Duathlon
The course will be all off-road for approximately a 2 mile run, 10 mile bike, and 2 mile run. A mountain bike is strongly recommended. Professional chip timing and post-race meal are included.
Team Relay
The course will be all off-road for approximately a 2 mile run, 10 mile bike, and 2 mile run. A mountain bike is strongly recommended. A team relay is 2 people, there is no longer a 3 person option. Runners on a team can be as young as 10 with parent permission. Professional chip timing and post-race meal are provided.
Half-Mix Duathlon
The course will be all off-road for approximately a 2 mile run and a 5 mile bike. A mountain bike is strongly recommended. Professional chip timing and post-race meal are included.
Cycling
Competitive Mountain Bike
This is a mountain bike race featuring 4 laps of a loop that covers all of the Atwood mountain bike trails in a counter-clockwise direction. Professional chip timing and post-race meal are provided. There will be awards for overall first, second, and third place for both men's and women's categories.
Sport Mountain Bike
This is a mountain bike race featuring 2 laps of a loop that covers all of the Atwood mountain bike trails in a counter-clockwise direction. Professional chip timing and post-race meal are provided. It will start immediately after the Competitive race starts.
Typical race-day weather
Based on 6 years of Open-Meteo archive data for this event's race dates in Rockford, plus the 3 days either side.
The sun rises at 6:57 AM and sets at 6:33 PM local time (CDT) in Rockford on October 4, 2026 — 11h 35m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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Results — Trail Mix
Other races near Rockford
Different organizers, within 40 miles, in the next three months
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Festival of Frights Haunted Hills Hustle
Glow in the Garden 5k
Fall Fest 5K and Kids Fun Run
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 17 Rockford events
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