Half Marathons in Iowa

As of October 6, 2026, Crewable lists 13 upcoming half marathons in Iowa from October 2026 to December 2026. The next is Haunted 5K, 10K, 13.1M & 26.2M at Des Moines, IA (41) on October 10 in Des Moines. Registration is open for 12.

Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites

Race calendar

October 2026

8 races

November 2026

4 races

December 2026

1 race

Quick answers

What is the next half marathon in Iowa?

Haunted 5K, 10K, 13.1M & 26.2M at Des Moines, IA (41), on Saturday, October 10, 2026, in Des Moines. Distances: Marathon, Half Marathon, 10K.

How many half marathons in Iowa have open registration?

12 of the 13 list registration as open as of October 6, 2026, including Haunted 5K, 10K, 13.1M & 26.2M at Des Moines, IA (41), Hot Cider Hustle - Cedar Rapids Half Marathon, 10K & 5K and Spooky Sprint- Des Moines.

What is the busiest month for half marathons in Iowa?

October 2026, with 8 of the 13. November 2026 follows with 4.

Race planning

Plan your Iowa race

Aid stations, cutoffs and pacing in one free plan. Crew invites and race-day updates come with a Race Pass.

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