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Entering its sixth year, the Chain of Rocks Bridge is now the permanent home of our Spring Duathlon, a longer bridge and a more rural bicycle course. Set on the iconic Chain of Rocks Bridge, the race starts and finishes on Chouteau Island. 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 across the bridge with great views of the mighty Mississippi.
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