Half Marathons in Flintstone, Maryland 2026 — MyNextRace

There are 2 half marathons in Flintstone, Maryland in 2026. The next is the Rocky Gap Off-Road Triathlon, Duathlon, Aqua Bike, and Relay on July 12.

Sun, Jul 12 · Flintstone, MD Flintstone

Triathlon AquaBikeAcquaBike RelayTriathlon Relay +3

From $50 Open

Sat, Sep 12 · Flintstone, MD Flintstone

Greenhorn Adventure Race

From $80 Open

Half Marathons in Flintstone, Maryland