Chain of Rocks Bridge Duathlon
Chain of Rocks Bridge Duathlon logo

Chain of Rocks Bridge Duathlon

Granite City, Illinois, United States
May 03, 2026
Duathlon

About this race

The Chain of Rocks Bridge has become the permanent home of our Spring Duathlon. Originally held on the historic Eads Bridge we re-located the event to a longer bridge and a more rural bicycle course. Participants will run from Start Line to the Mississippi River and back, followed by a flat, fast out and back bike circuit, returning to a final out and back run leg to the river and back with great views of the mighty Mississippi River. Awesome, right?!

Pick your distance

Duathlon

Individual Duathlon

Distances: 1.5 mile run – 12 mile bike – 1.5 mile run

May 03, 2026 24.1K 9:00 AM
$70.00
Closed

Duathlon Relay

Distances: 1.5 mile run – 12 mile bike – 1.5 mile run

May 03, 2026 24.1K 9:00 AM
$90.00
Closed

Typical race-day weather

Based on 1 year of historical conditions on this event's race dates in Granite City.

Temp (°C)
Minimum temperature (race-day average) 6.4° / Maximum temperature (race-day average) 23.0°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-day average) 2.5° / Maximum feels like — heat index / wind chill (race-day average) 23.0°
Wind (km/h)
Average wind speed (race-day average)
23.3
Precip (mm)
Average precipitation (race-day average)
0.0mm
Humidity
Average relative humidity (race-day average)
61.0%

About Granite City

Chain of Rocks Bridge Duathlon takes place in Granite City, Illinois, United States. The local timezone is America/Chicago.

Reviews

Done this event?

If you've participated in this event, share your experience with other runners

Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.

Other races in the area