Iowa has 7 active marathons this year. Races are most common in October, September, and May. Course terrain for these courses is most often rolling hills or hilly. Typical race day temperatures range from 41°F to 73°F.
Popular races include the Des Moines Marathon, Des Moines St. Paddys Marathon, and Kewash Marathon. There is 1 new marathon in Iowa this year — Cedar Rapids Marathon. 5 certified courses can be great Boston qualifier options. Races with the best Boston qualifying percentages include the Des Moines St. Paddys Marathon — 9.5% BQ and IronHorse Marathon — 9.1% BQ.
| Iowa Marathons |
Course
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PR Score
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|---|---|---|---|---|---|---|---|
Des Moines St. Paddys MarathonDes Moines, IA03/14/2026 |  Rolling Hills 201 Finishers |
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Kewash MarathonWashington, IA04/24/2027 | Rolling Hills96 Finishers |
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IronHorse MarathonRiceville, IA05/01/2027 | Rolling Hills22 Finishers |
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Cedar Rapids MarathonCedar Rapids, IA06/07/2026 | Rolling Hills
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Moorehead Park Trail MazathonIda Grove, IA08/01/2026 |  Hilly15 Finishers |
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Wabash Trace Nature Trail MarathonShenandoah, IA09/13/2025 | Rolling Hills45 Finishers |
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Des Moines MarathonDes Moines, IA10/18/2026 | Rolling Hills1,889 Finishers |
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