Carlyle Lake Triathlon

Get ready for an exhilarating day of athleticism at the 5th Annual Carlyle Lake Triathlon on Sunday, September 21, 2025, in the scenic town of Carlyle, Clinton, Illinois. This exciting event features a stunning beach start for the swim segment in the pristine waters of Carlyle Lake, followed by a flat and picturesque bike course that winds through the beautiful Illinois plains. Runners will enjoy a captivating route along rolling country roads, culminating in a breathtaking finish over the spillway, showcasing the impressive views of one of Illinois’ largest man-made lakes.

With multiple race distances available, the Carlyle Lake Triathlon caters to athletes of all levels, ensuring a perfect fit for novices and seasoned triathletes alike. Embrace the thrill of competition and the joy of community as you experience the famously fast and flat roads of Carlyle. Don’t miss out on this fantastic opportunity to challenge yourself and enjoy the great outdoors!