2025 Pterodactyl Triathlon & Duathlon

Prepare for another dino-mite summer of racing fun at Island Lake Recreation Area in Brighton, MI! The T-Rex Triathlon Series is back for 2025 with Wednesday night races featuring a scenic Kent Lake swim, a smooth paved road bike course, and a paved path run—plus some prehistoric surprises!

Triathlon Distances:

• .5 mile swim
• 12.4-mile bike
• 5K run

Duathlon Distances:

• 1.5-mile run
• 12.4-mile bike
• 5K run

All races start at 6:00 pm.

Every participant receives a custom finisher’s medal, post-race food, and access to the epic after-party! Optional add-ons and great swag are available.

Learn more and register at www.runtrextri.com

6:00 pm