Endurance Grid lists 5 races in Waterloo, Iowa, from November 2026 to June 2027.
The Waterloo race calendar is busiest in April, May, and June. Every race here is a running event, so there's usually one near you. You'll see distances like 5K, 10K, 2 Mile / 3K, and 50K.
Weather on race day varies by time of year, so it lives where it’s accurate — each race page shows that race’s typical high, low, and rain chance from NOAA climate normals for its venue and date.
Population
66,947
as of 2023
City Elevation
862 ft
Nearest Airport
ALO
Waterloo Regional Airport
Time Zone
Central Time
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Explore and filter upcoming endurance races in Waterloo, Iowa on the map below — by sport, distance, price, or month.