Head to Medical Lake, WA during Founders Day weekend for a versatile multi-sport celebration with three ways to participate! You can tackle the full triathlon (350m swim, 12.2-mile bike, 2.92-mile run), go with the duathlon format (1-mile run, 12.2-mile bike, 2.92-mile run), or simply run the 2.92-mile course solo—all events start and finish at Waterfront Park using paved roads and scenic trails around Medical Lake.