HalfRuns
Trail Mix Duathlon

Trail Mix Duathlon

Race Date

Oct 5, 2025

Location

Rockford, IL

The Experience

This year we are hosting 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! Prairie Street Brewhouse will also be on site with beer, soda, and water. 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 duathlon will be donated to trail building at Atwood Park. 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.

Logistics

Race Day

Sunday, October 5, 2025

Start Time

9:00 AM

Start Location

7074 Rydberg Rd, Rockford, IL, 61109

Directions

Course Info

Course Type

Loop Course

Terrain

road

Difficulty

Ultra-Flat

Elevation Gain

0'

Net Drop/km

0 m (Flat)

Separation

0.0%

Also Offers

14 Miles20 Miles10 Miles7 Miles

Quality Score

Methodology
Heritage8/20

4 years running

Size5/15

~9 finishers a year

Momentum3/5

small race — neutral

Loyalty0/20

0% returning runners

Course & details3/15

3 timing sources

National draw3/10

runners from 3 states

Front-pack speed5/5

winner 0:44:36

Weather2/10

typical high 72°F

Race Day Weather

5-year historical avg

Start (Low)

53°

Afternoon (High)

72°

Warm — hydration strategy is key, start conservatively

0.1"

Precipitation

11 mph

Wind

66%

Humidity

Historical Finish Times

How 27 finishers actually crossed the line across 4 years.

Most recent

2025

Total finishers

27

Median time

50:06

Latest turnout

10

States

3

10%
25%
75%
90%
0:40p50 median ≈ 0:551:15

Turnout by year

20222025

'22'23'24'25
See full results

Hover the histogram to inspect specific finish times.

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