Cedar River Triathlon

The Cedar River Triathlon, held at Lake Wilderness in Maple Valley, WA, is a scenic and well-organized event marking one of the first triathlon races of the 2025 season. The course features a 1/4 mile swim in Lake Wilderness, followed by a 14-mile off-road bike ride along the relatively flat Cedar River trail, split between hard-packed dirt and asphalt. The race concludes with a 6K trail run around the lake, offering beautiful views of the Cedar River, Green River, and Mount Rainier.

The event is USAT-sanctioned, welcoming paratriathletes, and provides participants with custom apparel, snacks, and finisher medals. A kids' Splash n Dash race is also offered. Visit the organization's website for the most recent information.