Running races in Iowa in May 2027

16 races in date order

Doc Dash 5k
Sat 1 May 2027 · Iowa City, IA · Doc Dash 5k

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Cornbelt Running Club 24 Hour Run
May 2027 · Davenport, IA · 24 Hour Run
Now in its 45th year on Brady Street Stadium's track

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Run Like A Mother 5K
May 2027 · Cedar Falls, IA · 5K
Held on the shore of Big Woods Lake

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Des Moines Women's Half Marathon
Sun 2 May 2027 · Des Moines, IA · 26.1 km · Half Marathon · Team Relay · Double: 5K + 10K · 10K · 5K
Starts and finishes at Jasper Winery in Des Moines

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42nd Annual Red Shoe Run & Walk 5K
May 2027 · Iowa City, IA · 5K

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KLOMPEN CLASSIC® 5K
May 2027 · Pella, IA · 5K
Named for the wooden clogs of Dutch Pella

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17th Annual Furry 5K
May 2027 · Cedar Falls, IA · 5K
Dogs welcome at this Humane Society fundraiser 5K

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Market to Market® Relay Iowa
Sat 8 May 2027 · Des Moines, IA · 120.7 km
18-stage relay from Jefferson to Des Moines

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Pizza Pie Looza 5k & 10k
May 2027 · Nevada, IA · 10K · 5K

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Orange City Tulip Festival
May 2027 · Orange City, IA · 5K Run/Walk · 1 Mile Walk
Part of Orange City's Dutch tulip festival

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Stars Stripes Spirit 5K
Sat 15 May 2027 · Des Moines, IA · 5K
5K honoring veterans on Armed Forces Day, Des Moines

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Luau 5K, 10K, & 13.1M at Bettendorf, IA (20)
Sat 15 May 2027 · Bettendorf, IA · Half Marathon · 10K · 5K
Luau-themed out-and-back race at Middle Park

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Marion Arts Festival
May 2027 · Marion, IA · Half Marathon · 5K
Runs through Marion's Uptown fine-arts festival

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Race for Hope DSM
May 2027 · Des Moines, IA · 10.1K Run · 5K Run/Walk · 2K Walk · Kids Fun Run
Loops Water Works Park where two rivers meet

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Outrun the Rays 5K Walk/Run
May 2027 · Peosta, IA · 5K Walk/Run · Kid's Fun Run

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CRFD Memorial 5K Run/Walk
May 2027 · Cedar Rapids, IA · 5K · Half Mile
Honors fallen Cedar Rapids firefighter Chief Sterenchuk

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← Iowa Oct Nov Dec Jan 2027 Feb 2027 Mar 2027 Apr 2027 Jun 2027 Jul 2027 Aug 2027 Sep 2027 Oct 2027

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Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.