About: 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. The iconic Chain of Rocks Bridge and surrounding area is the perfect venue to ease into an active event season. The event starts and finishes at the foot of the Chain of Rocks Bridge on the Illinois side. Participants will run from Illinois to Missouri and back, followed by a flat, fast out and back bike circuit, returning to a final out and back run leg on the bridge with great views of the mighty Mississippi River. Awesome, right?!
Download our Athlete Guide for the nitty gritty details.
- Pre-register online. Deadline for a GuaranTEEd event shirt is April 19th.
- In person at Big Shark's Big Bend Location 11am - 5pm Saturday, April 27th
- RACE DAY at the Chain of Rocks Bridge Parking Lot on the Illinois side from 7:30am - 8:30am
RACE DAY- arrive EARLY- we start and park at the Eastern/Illinois entry to the Chain of Rocks Bridge! RACE will go on rain or shine. We've cast our vote for shine, but it will be happening either way!
Distances: 1.5 mile run – 12 mile bike – 1.5 mile run. A great distance for beginners and seasoned veterans.
Where: The Chain of Rocks Bridge – and rural roads on the Illinois side of the Mississippi River.
When: Sunday April 28th, 2019 at 9:00 AM
Chain of Rocks Bridge Duathlon Registration Details-
|Before January 1st, 2018||Individual $55/Team $75|
|January 1st - March 1st||Individual $60/Team $80|
|March 1st - April 27th||Individual $65/Team $85|
|Race Day April 28th||Individual $70/Team $90|
Athletes registered by April 19 are guaranteed an Event Shirt. Entries after the deadline are NOT guaranteed shirts.
Two person teams- one person does the run legs and the other does the bike segment
Three person teams - one person does the first run leg, 2nd person does the bike leg and a 3rd person does the final run.
ALL participants will have a timing strip on their Bib Number. To have accurate times, numbers must be worn through the duration of the race. Teams will pass the number from one member to the next using a race belt. If teams don't have a race belt, Big River will loan one to them to be returned after the race.
Packet Pick-Up Options:
- Saturday, April 27: Big Shark Bicycle Company, 1155 South Big Bend Blvd, 63117, 11am-5pm
2019 Registration is Open:
The Bi-State Multisport Series- Sign up for 2 or 3 of the races in our series and save 10% or 15% off of each race's registration. The series races are the 4/28 Chain of Rocks Bridge Duathlon, the 5/25 Highland Lions Walt Steiner Memorial Biathlon, and the 6/9 Riverlands Rush Biathlon.
Run 1 Details: Start on the Illinois Entry to the Chain of Rocks Bridge- head Wast. Out and back to a turn around on the Chain of Rocks Bridge. Note- the Bridge is not flat..
Run to Bike Transition in the Chain of Rocks Bridge Parking Lot: Transition area will have water and first aid support.
Bike Details: 12 miles – East on Chain of Rocks Road. South on Slough Road/Chouteau Place Road to turn-around.
Bike to Run Transition in the Chain of Rocks Bridge Parking Lot: Transition area will have water and first aid support.
Run 2 Details: Start on the Illinois Entry to the Chain of Rocks Bridge- head Wast. Out and back to the turn around on the bridge and back to the Finish Line. High Fives!
Awards: Top 3 Overall Men and Top 3 Overall Women
- Top 3 Age Groups Men and Women: U19, 20-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-65, 65-69, 70+
- Teams: First Place only in each - Men, Women and Coed Teams
Celebrate! Take in the spectacular view of the Mighty Mississippi River! Awards will be at (approx.) 11 am in the parking lot at the foot of the Chain of Rocks Bridge on the Illinois side.
- 2018 Chain of Rocks Bridge Duathlon Race Results
- 2017 Chain of Rocks Bridge Duathlon Race Results
- 2016 Chain of Rocks Bridge Duathlon Race Results
- 2015 Chain of Rocks Bridge Duathlon Race Results
- 2014 Eads Bridge Duathlon Race Results
- 2013 Eads Bridge Duathlon Race Results
- 2012 Eads Bridge Duathlon Race Results
Questions, Comments, Compliments or to volunteer: firstname.lastname@example.org
Learn more about the Chain of Rocks Bridge:
Thanks to R & R Sanitation for supplying our "facilities".