Registration for the next running of Monster Triathlon isn't open yet. Save it on Trehko and we'll remind you the moment it opens.
Get reminded on Trehko →Save this race to your wishlist, set a registration reminder, and build a full training plan on Trehko.
Monster Triathlon is a sprint tri triathlon event held in Keller, TX on Oct 11, 2026. The course has a mixed profile.
Trehko tracks registration status, entry fees, and deadlines for Monster Triathlon and thousands of other endurance races. Use the app to set a registration reminder and build a training plan tailored to race day.
Browse by discipline: