Half Marathons in Oklahoma
As of October 6, 2026, Crewable lists 11 upcoming half marathons in Oklahoma from October 2026 to November 2026. The next is Haunted 5K, 10K, & 13.1M at Sapulpa, OK (41) on October 10 in Sapulpa. Registration is open for all 11.
Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites
Race calendar
October 2026
8 racesHaunted 5K, 10K, & 13.1M at Oklahoma City, OK (43)
Oklahoma City, OKHalf Marathon10K+1Open until Oct 24from $30Day of the Dead Half Marathon - Oklahoma City
Oklahoma City, OKHalf Marathon6.55 mi+2Open until Oct 26from $15
November 2026
3 racesGobbler 5K, 10K, & 13.1M at Stillwater, OK (45)
Stillwater, OKHalf Marathon10K+1Open until Nov 7from $30Salute to Veterans 5K/10K/Half Marathon - Oklahoma City
Oklahoma City, OKHalf Marathon10K+1Open until Nov 8from $15
Quick answers
What is the next half marathon in Oklahoma?
Haunted 5K, 10K, & 13.1M at Sapulpa, OK (41), on Saturday, October 10, 2026, in Sapulpa. Distances: Half Marathon, 10K, 5K.
How many half marathons in Oklahoma have open registration?
All 11 list registration as open as of October 6, 2026.
What is the busiest month for half marathons in Oklahoma?
October 2026, with 8 of the 11. November 2026 follows with 3.
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