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Iowa Ultramarathon Calendar 2026-2027

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Explore the best ultramarathons in Iowa for 2026-2027! Our updated list features 14 exciting races across the region. Find your next race in Iowa below and join the running community at these great events!

November 2026
Nov
13
Fr

Bear River Backyard Ultra

Backyard Ultra 4 mi
Nov
21-22
Sa - Su

Stuffed Turkey Endurance Race

Trail Run 10 mi 50 km 50 mi 100 mi
December 2026
Dec
5-6
Sa - Su

Hitchcock Experience Endurance Runs

Trail Run 13 mi 50 mi 101 km 100 mi
January 2027
Jan
16
Sa

Triple D Winter Race

Trail Run 5 km Half Marathon Marathon 50 km
May 2027
May
8
Sa

Market to Market Relay Iowa

75 mi
Monthly updates for Iowa

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June 2027
Jun
3-7
Th - Mo

The Hawkeye 200

Trail Run 200 mi
Jun
5
Sa

Crater Trail Run

Trail Run 5 km 10 km 25 km 50 km
Jun
11-13
Fr - Su

Relay Iowa

339 mi
August 2027
Aug
28
Sa

Victory Lane Backyard 12

Backyard Ultra 4 mi
September 2027
Sep
11
Sa

Pleasant Creek Trail Run

Trail Run 15 km 30 km 45 km
Sep
18
Sa

Broken Anvil Backyard Ultra

Backyard Ultra 4 mi
October 2027
Oct
2
Sa

Harvest Moon Backyard Ultra

Trail Run Backyard Ultra 4 mi
Oct
2
Sa

Swiss Valley Trail Races

Trail Run 5 mi 25 km 50 km
Oct
15-16
Fr - Sa

Mines of Spain 100

Trail Run 100 km 100 mi
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