Marathons in Iowa, United States
36 upcoming races are listed in Iowa, including 10 marathons, 30 half marathons and 11 ultras. The next is River’s Edge Trail Half Marathon on September 26, 2026.
October has the most races. Race pages link the official source where we have one. Confirm dates and prices with the organizer before you register.
36
Races listed
10
Marathons
October
Busiest month
24 Jul
Last updated
Go a level deeper
Links go down the map, not sideways. Each region and city has its own page of races.
Cities
Common questions
When is the next race in Iowa?
River’s Edge Trail Half Marathon on September 26, 2026. The table above lists every upcoming race in date order.
Which months are busiest in Iowa?
October (17), November (7), May (5), counting every upcoming race listed in Iowa.
Which distances can I run in Iowa?
The listed races include 10 marathons, 30 half marathons, 11 ultras, 22 10Ks and 21 5Ks. Many events offer more than one distance on the same day.
How do I confirm a race’s details?
Open the race page and check its provenance ledger, which shows where each fact came from. Then confirm the date, price and entry rules with the organizer before you register or book travel.
Spotted something wrong on this page?
Dates and prices move · tell us and we check the organizer’s source