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Half Marathons in Stillwater, OK

Stillwater, OK has 7 upcoming Half Marathons. Half marathons are the fastest-growing race distance, offering a true endurance challenge with a more accessible training window than the full marathon.

7 upcoming races listed

Fun racesScenic racesCompetitive racesQuirky racesFestive racesFor a Cause racesBeginner-friendly
Luau 5K, 10K & 13.1M at Stillwater, OK (18)

Embrace the luau spirit at Boomer Lake Park with a themed run, costume contest, and a chance to earn awards and series points.

  • Fun
  • Competitive
  • Quirky
  • Festive
Sat, May 2, 2026, 8:00 AM CDT13.1 MilesStillwater, OK
Steady EffortRUN

Course · Rolling · Timed race

Medal Madness 5K, 10K, & 13.1M at Stillwater, OK (23)

Run an out-and-back course at Boomer Lake Park, earn a finisher medal, and show off your best costume.

  • Fun
  • Competitive
  • Quirky
Sat, Jun 6, 2026, 8:00 AM CDT13.1 MilesStillwater, OK
Steady EffortRUN

Course · Rolling · Timed race

Eagle 5K, 10K, & 13.1M at Stillwater, OK (27)

Run an out-and-back course at Boomer Lake Park, earn series points, and show off your best costume for a chance at awards and a finisher medal.

  • Fun
  • Competitive
  • Quirky
Sat, Jul 4, 2026, 8:00 AM CDT13.1 MilesStillwater, OK
Steady EffortRUN

Course · Rolling · Timed race

Ninja 5K, 10K, & 13.1M at Stillwater, OK (31)

Embrace your inner ninja on this multi-distance out-and-back course, complete with finisher medals and a chance to win for best costume.

  • Fun
  • Competitive
  • Quirky
Sat, Aug 1, 2026, 8:00 AM CDT13.1 MilesStillwater, OK
Steady EffortRUN

Course · Rolling · Timed race

Medal Madness 5K, 10K, & 13.1M at Stillwater, OK (36)

Run an out-and-back course at Boomer Lake Park, earn a finisher medal, and show off your best costume.

  • Fun
  • Competitive
  • Quirky
Sat, Sep 5, 2026, 8:00 AM CDT13.1 MilesStillwater, OK
Steady EffortRUN

Course · Rolling · Timed race

Gobbler 5K, 10K, & 13.1M at Stillwater, OK (45)

A festive 'Gobbler' themed run at Boomer Lake Park featuring 5K, 10K, and Half Marathon distances on an out-and-back course.

  • Fun
  • Competitive
  • Quirky
  • Festive
Sat, Nov 7, 2026, 8:00 AM CST13.1 MilesStillwater, OK
Steady EffortRUN

Course · Rolling · Timed race

Holiday 5K, 10K, & 13.1M at Stillwater, OK (49)

A festive December run at Boomer Lake Park in Stillwater, offering 5K, 10K, and Half Marathon distances with a fun costume contest.

  • Fun
  • Competitive
  • Quirky
  • Festive
Sat, Dec 5, 2026, 8:00 AM CST13.1 MilesStillwater, OK
Steady EffortRUN

Course · Rolling · Timed race

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Other distances in Stillwater, OK

5Ks in Stillwater, OK10Ks in Stillwater, OKMarathons in Stillwater, OK