Overview
Mastondon is an early-season trail race that welcomes runners back to the dirt for a fun, fast, and social event. Set on the scenic Maston Trail Network in Tumalo, Oregon, this race offers sweeping views of the Deschutes River and Central Oregon mountains. It’s the perfect tune-up race for the year—challenging enough to test your fitness without punishing your legs too early in the season.
This year's event took place on
Saturday, May 31, 2025
Registration
Opens
TBD
Closes
TBD
Registration Fee
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