Thunder in the Valley
About this race
USAT CERTIFIED EVENT
USAT membership will be required at registration or you can opt for a 1Day USAT race license.
Thunder in the Valley Triathlon is 41 years old in 2026. Athletes will also get top notch swag with custom die cast finisher medals and awards, swim caps, and a super cool Thunder in the Valley t-shirt.
Sprint Triathlon Distances 500Μ SWIM 20K BIKE 5K RUN
Duathlon Distances 1.6K RUN 20K BIKE 5K RUN
This triathlon will begin at 8am with a 500 meter swim in the calm Hawthorn 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 41 years, Thunder has been the race to kick-off triathlon season!
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 Hawthorn Park with great competition for beginners and experienced athletes. Awards and post race refreshments following the race.
The guarantee t-shirt cutoff is April 23rd at 11:59pm. If you sign up after this date, there is not a guarantee you will get a shirt, even though we will order some extras.
USAT rules state that competitors may wear wetsuits if the water temperature is 78 degrees or lower.
USAT rules also state that if the water temperature is between 78.1 – 83.9 degrees, competitors may wear wetsuits but will not be eligible for awards or USAT ranking points.
USAT rules also state that if the water temperature is 84 degrees or higher, wetsuits may not be worn.
Pick your distance
Triathlon
Sprint Triathlon
Triathlon Relay Team
Duathlon
Duathlon
Relay Duathlon Team
Typical race-day weather
Based on 3 years of Open-Meteo archive data for this event's race dates in Terre Haute, plus the 3 days either side.
The sun rises at 6:41 AM and sets at 8:51 PM local time (EDT) in Terre Haute on May 9, 2026 — 14h 09m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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2026 results — Thunder in the Valley
76 finishers across 3 distances · leading places in the Sprint Triathlon
| Place | Name | Time | Pace |
|---|---|---|---|
| 1 | Peyton Merica | 57:39 | 3:51 /mi |
| 2 | Brooks Green | 1:03:43 | 4:15 /mi |
| 3 | Paul Howarth | 1:04:24 | 4:18 /mi |
| 4 | Blake Reed | 1:06:07 | 4:24 /mi |
| 5 | Andre Ponsot | 1:07:41 | 4:31 /mi |
Every finisher is on the results page, filterable by distance, gender and age group.
All results by year
Other races near Terre Haute
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Finish Line Festival 1 Mile
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 26 Terre Haute events
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