Island Girl Triathlon and Duathlon
Island Girl Triathlon and Duathlon is a triathlon and duathlon race on October 25, 2026 in Dayton, TX, with entry fees from $95 to $189.
- Date
- October 25, 2026 (32 days to go)
- Location
- 15 River Ranch Blvd., Dayton, TX
- Price
- $95–$189
- Sports
- TriathlonDuathlon
From the Organizer
Join us at the beautiful Angel Lagoon for a morning at the beach! This LADIES ONLY race will include a Sprint Triathlon and Relay as well as a Duathlon for those just not ready for the water. Your open water swim will be in the crystal clear waters of the Angel Lagoon where your race will end and the fun begins on their white sand, palm tree-lined beaches.
The Sprint Triathlon will consist of a 300 meter swim, an 8-mile bike and a 5k run. The Duathlon will start with a 1 mile run and then the same 8-mile bike and 5k run as the Sprint Tri. All athletes will finish along the beach and be greeted with margaritas and more, and you are welcome to stay and enjoy all the amenities of the lagoon after. You'll swear you were in the Caribbean and not Houston!
All athletes will receive a custom race bib and tech t-shirt/singlet along with other yet-to-be-determined, Island-appropriate swag. You will also be eligible for age-group awards, and they will be something worth winning for! Your entry also includes admission to the Angel Lagooon for the day, and already discounted admission available for your friends and family. Come celebrate the ladies in your life at a race full of encouraging women of all skill levels; this race is perfect for first-timers and all triathletes.
Awards in Age Groups:
- Sprint : Top 3 in 0-14, and 5 year age groups 15-19 up to 70+
- Relay : Top 3 teams
- Du: Top 3 in 0-19 and 10 year age groups up to 70+.
Events
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
79°
Typical Low
66°
Chance of Rain
24%
Based on US Climate Normals data from Galveston Scholes Fld, 9 mi from the venue.
About Dayton, TX
Nearest Airport
HOU
William P. Hobby Airport · 26 mi
Time Zone
Central Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Island Girl Triathlon and Duathlon, put it on the calendar, and turn “someday” into a start date.
32
Days to train
- Race
- Island Girl Triathlon and Duathlon
- Date
- October 25, 2026
- Location
- 15 River Ranch Blvd., Dayton, TX
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About These Sports
This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Triathlon
Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think. Three sports in one race means three movements to train and race day never gets monotonous.
Duathlon
Run, bike, run. The multi-sport format without the swim. Two disciplines, one race — a great bridge between running and triathlon.
More Triathlon races near Dayton, TX
Frequently Asked Questions
What is the Island Girl Triathlon and Duathlon?
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Island Girl Triathlon and Duathlon
Oct 25, 2026