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Thunder in the Valley

Sat May 10, 2025

Terre Haute, IN 47803 US Directions


Sprint Triathlon

$70 8:00AM EDT - 12:00PM EDT Price increases after March 29, 2025 at 11:59pm EDT

Duathlon

$70 8:05AM EDT - 12:00PM EDT Price increases after March 29, 2025 at 11:59pm EDT
2 or 3 Person Teams

Triathlon Relay Team

$105 8:00AM EDT - 12:00PM EDT Price increases after March 29, 2025 at 11:59pm EDT
2 Person Teams

Relay Duathlon Team

$95 8:05AM EDT - 12:00PM EDT Price increases after March 29, 2025 at 11:59pm EDT

Thunder in the Valley Triathlon is 40 years old!

This triathlon will begin at 8am with a 500 meter swim in the calm Hawthorne Lake. After a quick lakeside transition athletes will head out for a smooth, fast 20k bike course with rolling hills that brings them back to the transition area. Athletes will then run on a shaded, flat out and back 5k course before returning to the finish line. This race is the perfect race for the new triathlete looking for their first triathlon, or the seasoned athlete looking for their first race of the season. For 40 years, Thunder has been the race for first time triathletes! 

The Duathlon will begin with a 1 mile out and back run to transition before heading out on the 20k bike course. This race is held around and within beautiful Hawthorne Park with great competition for beginners and experienced athletes.   Awards and post race refreshments following the race.

Location:

Hawthorn Park
6067 E Old Maple Ave
Terre Haute, IN US 47803

Sprint Triathlon & Relay

  • 500 Meter Swim
  • 20k Bike 
  • 5k Run
  • Compete Solo
  • Form a Relay Team of 2 or 3 Members
See Courses

Duathlon & Relay

  • 1.6k Run
  • 20k Bike 
  • 5k Run
  • Compete Solo
  • Form a 2 Person Relay Team
See Courses

USAT Certified Event

USAT membership will be required at registration or you can opt for a 1Day USAT race license.

Sponsors

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