Running Races in Oak Ridge, Tennessee 2026 | Browse All Races

There are 6 running races in Oak Ridge, Tennessee in 2026. The next is the Secret City Sprint Triathlon on July 25. Distances include marathons, 5K races, half marathons.

Secret City Sprint Triathlon

Sat, Jul 25 · Oak Ridge, TN Oak Ridge

Triathlon Sprint TriathlonSprint Triathlon AquabikeSprint Triathlon Mixed Relay +2

From $70 Open Closing Soon

Oak Ridge Fall Classic 5k

Sat, Aug 29 · Oak Ridge, TN Oak Ridge

Virtual Oak Ridge Fall Classic 5KOak Ridge Fall Classic Sleep-In VIRTUAL 5k

From $25 Open

Bootleg Marathon

Sun, Sep 6 · Oak Ridge, TN Oak Ridge

Road Half MarathonMarathon

From $45 Open

Atomic Kids Fall Triathlons

Sat, Sep 26 · Oak Ridge, TN Oak Ridge

Triathlon Tadpole TriathlonTriathlon Mid SprintTriathlon Long Sprint

From $25 Open Closing Soon

Secret City Half Marathon and 5K

Sat, Nov 14 · Oak Ridge, TN Oak Ridge

Virtual Virtual Secret City 5kSecret City 5KVirtual Secret City Half Marathon +1

From $25 Open Closing Soon 14 spots left

Oak Ridge to Kingston Express Marathon & Half Marathon

Sun, Feb 28 · Oak Ridge, TN Oak Ridge

Road O2K Half MarathonO2K Half Marathon- MARCHO2K Marathon - MARCH +1

From $40 Closed 49 spots left

Running Races in Oak Ridge, Tennessee — 2026