Ultramarathons in Iowa

5 upcoming ultramarathons in Iowa, with dates and field depth before you enter.

All races 5K races 154 10K races 81 Half marathons 59 Marathons 14 Ultramarathons 5 Races near me

By city

Des Moines (31)Bettendorf (22)Iowa City (18)Cedar Rapids (8)Waterloo (7)

Which of these could you place in? raceIQ ranks them by where your pace would finish, in your age group and gender.

Find your races

November 2026

Sat, Nov 21Stuffed Turkey Endurance RacesGrangerUltra

December 2026

Sat, Dec 5Hitchcock ExperienceHoney CreekUltra

January 2027

Sat, Jan 16Triple D Winter RaceDubuque5KUltra

May 2027

Tue, May 112027 Prairie Series - Day 5 (IA)Sioux City5K10KHalf marathonMarathonUltra

July 2027

Wed, Jul 142027 Heartland Series - Day 5 (IA)Clinton5K10KHalf marathonMarathonUltra