Oregon
Oregon Triathlon Calendar 2026-2027
Monthly updates for Oregon
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Oregon for 2026-2027! Our updated list features 3 exciting races across the region. Find your next race in Oregon below and join the running community at these great events!
September 2026
Newport Harbor Triathlon in Newport OR on September 20, 2026 offers adult and youth triathlons, an aquabike, a relay option, and an open 5K.
October 2026
A 30 hour continuous adventure race at Diamond Lake Resort, Oregon on October 23-24, 2026. Four-person teams compete in mixed, all-women, and all-men categories across trekking, mountain biking, paddling, and navigation with live tracking.
June 2027
Two-day multisport festival at Foster Reservoir in Sweet Home, OR with triathlons, duathlons, bike rides, swims, running races, and family events.
Monthly updates for Oregon
Get new running races (and updates) in your inbox every month.