Tennessee
Tennessee Triathlon Calendar 2025-2026
Explore the best triathlons in Tennessee for 2025-2026! Our updated list features 8 exciting races across the region. Find your next race in Tennessee below and join the running community at these great events!
April 2026
Test your limits at Knox Xtreme Adventure Race, where solo racers and teams run, bike, paddle and navigate to checkpoints across the Urban Wilderness in 8 and 30 hour formats. Volunteers get free 8 hour or 24 hour shifts.
May 2026
Join the Spirit of Kona Triathlons & 5k/10k at Tellico Dam Recreation Area in Lenoir City on May 9, 2026. Choose sprint or Olympic triathlons, aquabike or relay options, or tackle a certified 5k or 10k on scenic lakeside courses.
IRONMAN 70.3 Chattanooga on May 17, 2026 sends athletes on a scenic swim in the Tennessee River, a rolling bike through hills and a riverfront run along park trails. World Championship slots and Flex90 eligibility add extra competitive appeal.
June 2026
August 2026
September 2026
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