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

There are 8 running races in Oak Ridge, Tennessee in 2026. The next is the Atomic Kids Summer Splash Triathlons on May 30. Distances include 5K races, half marathons, trail runs.

Atomic Kids Summer Splash Triathlons

Sat, May 30 · Oak Ridge, TN Oak Ridge

Triathlon Triathlon Long SprintTriathlon Mid SprintTadpole Triathlon

From $20 Open

Secret City Sprint Triathlon

Sat, Jun 27 · Oak Ridge, TN Oak Ridge

Triathlon Sprint Triathlon ClydesdaleSprint Triathlon AthenaSprint Triathlon +2

From $70 Open

Haw Ridge Trail Race

Sat, Jul 11 · Oak Ridge, TN Oak Ridge

Trail Kids Trail MileKids Trail Mile (Bundle)8 Mile (Student 14 and under) +2

From $9 Open

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 Triathlon Long SprintTadpole TriathlonTriathlon Mid Sprint

From $25 Open

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 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 +1

From $40 Closed 49 spots left

Running Races in Oak Ridge, Tennessee — 2026

All Tennessee Races