Iowa · Marathon

Marathon Races in Iowa

Every upcoming Marathon in Iowa, all 12 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.

12 upcoming Marathon races · 2 with finish-time stats

5K 11710K 43Half Marathon 39Ultra 1
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By the numbers

The Biggest and Longest-Running

The Iowa races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.

Largest field276 finishersKewash Marathon, Half Marathon, 10K & 5Kin the 5K

Marathon Races by City

Des Moines 4Bettendorf 2Sioux City 1Shenandoah 1Washington 1Council Bluffs 1Cedar Rapids 1Riceville 1

Soonest Marathon Races in Iowa

12 total
Fri, Sep 11, 2026Mighty Mo Run Sioux City, IA10KHalf Marathon5KMarathonFrom $35Details Sat, Sep 12, 2026Wabash Trace Running Festival Shenandoah, IAMarathonHalf Marathon10K5KFrom $25Details Sat, Oct 10, 2026Haunted 5K, 10K, 13.1M & 26.2M at Des Moines, IA (41) Des Moines, IA5K10KHalf MarathonMarathonFrom $30Register Sat, Oct 17, 2026Haunted 5K, 10K, 13.1M & 26.2M at Bettendorf, IA (42) Bettendorf, IA5K10KHalf MarathonMarathonFrom $30Details Sun, Oct 18, 2026IMT Des Moines Marathon Des Moines, IAMarathonHalf Marathon5K1 MileFrom $37Details Sun, Oct 18, 2026IMT Des Moines Marathon - Early Bird Des Moines, IAMarathonHalf Marathon10K5KFrom $20Register Sat, Oct 31, 2026Medal Madness 5K, 10K, 13.1M & 26.2M Bettendorf, IA5K10KHalf MarathonMarathonFrom $30Register Sat, Nov 14, 2026Gobbler 5K, 10K, 13.1M & 26.2M at Des Moines, IA (46) Des Moines, IA5K10KHalf MarathonMarathonFrom $30Register Sat, Apr 24, 2027Kewash Marathon, Half Marathon, 10K & 5K Washington, IAMarathonHalf Marathon10K5KFrom $30Details Sat, Apr 24, 2027Lewis & Clark Marathon, 1/2 Marathon, 5k and 1-Mile Fun Run Council Bluffs, IAMarathonHalf Marathon5K1 MileFrom $29Details Sun, Apr 25, 2027Cedar Rapids Marathon Weekend - Early Bird Cedar Rapids, IAMarathonHalf Marathon10K5KFrom $25Details Sat, May 1, 2027IronHorse - USATF Certified & Sanctioned Riceville, IAMarathonHalf Marathon10K5KFrom $15Details

How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.

Common Questions About Running a Marathon in Iowa

Which Iowa cities have the most Marathon races?

Des Moines (4), Bettendorf (2), Sioux City (1), Shenandoah (1) lead the state for Marathon races. Those give you the most dates to choose from if your schedule is tight.

When are most Marathon races held in Iowa?

October is the busiest month for Marathon races in Iowa, with 5 of the 12, followed by April with 3. If you are flexible on the date, that is the quickest way to narrow things down.

How much do Iowa Marathon races cost?

Entry fees for Marathon races here run from $15 to about $37, depending on the event and how early you register.

How early should I register for a Marathon in Iowa?

6 of the 12 Marathon races in Iowa already have a price increase scheduled, so entry gets more expensive the longer you leave it. Race pricing almost always steps up as the date approaches, and signing up early is usually the cheapest option.

Are there trail Marathon races in Iowa?

Yes, one race around Iowa gets you off the pavement: 1 mixes road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.