Thunder in the Valley
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Event overview
Thunder in the Valley takes place on May 9, 2026, in Terre Haute, Indiana (6067 E Old Maple Ave, Terre Haute, IN 47803). The event includes a Sprint Triathlon, a Duathlon, a Triathlon Relay Team event, and a Relay Duathlon Team event. Entry prices listed are $65 for the Sprint Triathlon and Duathlon, $100 for the Triathlon Relay, and $90 for the Relay Duathlon. Registration opens February 6, 2026. The event is USAT certified; competitors must have USAT membership or may purchase a 1-day USAT race license at registration. Relay team sizes are allowed as specified by each event.
Courses and logistics
The Sprint Triathlon course is a swim-bike-run format with a 500 m swim in Hawthorne Lake, a 20k bike course with rolling hills, and a 5k out-and-back run on a shaded, flat route. The Duathlon course includes a 1.6k out-and-back run, a 20k bike, and a 5k run. Distances:
- 500 m swim, 20k bike, 5k run
- 1.6k run, 20k bike, 5k run
Packet pickup is available the day before and on race morning at park locations; USAT membership ID and personal ID are required at pickup. Timing chips are collected on race morning. An optional practice swim is offered the evening before the event. Awards and post-race refreshments will follow the races. Water temperature was reported at 70 degrees on the Friday before the event. Visit the organization's website for the most recent information.