Race Discovery
First Call 5K, 10K, & 1/2 Marathon
First Call 5K, 10K, & 1/2 Marathon logo

First Call 5K, 10K, & 1/2 Marathon

Waukesha, Wisconsin, United States View on map
Mar 21, 2027 (America/Chicago local time)
Running

About this race

Spring is here, and it's the perfect time to dust off your running shoes! Shake off the winter hibernation and join us for the First Call 5K, 10K, and Half Marathon. This is your chance to set the tone for an incredible 2026 race season. This year’s race takes place on the lightning-fast Glacial Drumlin and Fox River Trails—so fast, it’s faster than flat! Don’t miss out—The First Call is part of the exciting Chilly Willy Winter Run Series.

Pick your distance

Running

5K

Mar 21, 2027 5K 9:00 AM
$32.50
Open

10K

Mar 21, 2027 10K 9:00 AM
$32.50
Open

1/2 Marathon

Mar 21, 2027 Half-Marathon 9:00 AM
$50.00
Open

1/2 Marathon - Early Start

Early start runners are not eligible for overall or age group awards.

Mar 21, 2027 Half-Marathon 8:00 AM
$55.00
Open

1K Kiddo's Race

Mar 21, 2027 1K 8:45 AM
Free
Open

5K Ruck

Mar 21, 2027 5K 9:00 AM
$32.50
Open

10K Ruck

Mar 21, 2027 10K 9:00 AM
$32.50
Open

Walking

5K Walk

Mar 21, 2027 5K 9:00 AM
$32.50
Open

Typical race-day weather

Based on 9 years of historical conditions on this event's race dates in Waukesha.

Temp (°C)
Minimum temperature (race-day average) -1.8° / Maximum temperature (race-day average) 9.2°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-day average) -8.0° / Maximum feels like — heat index / wind chill (race-day average) 6.1°
Wind (km/h)
Average wind speed (race-day average)
22.7
Precip (mm)
Average precipitation (race-day average)
1.9mm
Humidity
Average relative humidity (race-day average)
66.0%

Course

Route map and elevation profile

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

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Other races near Waukesha

Different organizers, within 40 miles, in the next three months

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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 10 Waukesha events

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