First Call Half Marathon

MAR
22
2026
Kick off the spring season in Waukesha with a series of races on the flat Glacial Drumlin and Fox River Trails. Choose from half marathon, 10K, and 5K distances including rucking and walking options.
Sun 22 Mar 2026
13 miles 6 miles 10 kilometers 5 kilometers 3 miles

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Event Overview

The First Call race series takes place in Waukesha, Wisconsin, serving as an event to mark the beginning of the spring running season. Participants gather at the Fox River Sanctuary, specifically at the E.B. Shurts Building located on West College Avenue. This event is part of the Chilly Willy Winter Run Series and offers a variety of distances and disciplines on paved trail systems.

Course Details

The routes utilize the Glacial Drumlin Trail and the Fox River Trail. These paths are described as flat and fast surfaces. The course layout accommodates multiple distances and formats, including running, walking, and rucking.

Distances and Categories

Participants can choose from the following event options:

  • 1/2 Marathon: A 13.1 mile race with a standard start and an early start option.
  • 10K: A 6.2 mile running race.
  • 10K Ruck: A 6.2 mile rucking event.
  • 5K: A 3.12 mile running race.
  • 5K Walk: A 3.1 mile event designated for walking only.
  • 5K Ruck: A 3.1 mile rucking event.
  • 1K Kiddo's Race: A 1 km distance specifically for children.

Individuals opting for the 1/2 Marathon early start are not eligible for overall or age group awards. Registration for the various distances opens in June 2025, with closing dates varying by the specific event selected. Visit the organization's website for the most recent information.

13 mi
1/2 Marathon
13 mi
1/2 Marathon - Early Start
6 mi
10k Ruck
10 km
10k
5 km
3 mi
5k Ruck
3 mi
5k Walk
1k Kiddo's Race