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Running Calendar near Delafield 2025-2026

Monthly updates for Delafield

Get new running races (and updates) in your inbox every month.

Explore the top running races near Delafield for 2025-2026! We've gathered 72 exciting races in the area. Check out our detailed list below to find your next local race.

Half Marathons Marathons Trail Runs Triathlons
December 2025
Dec
31
We

Run Into the New Year

5 km 10 km
Dec
31
We

Noon Year's Eve

2 mi 5 km
January 2026
Jan
17-18
Sa - Su

Whitewalker Ultra

Trail Run 100 km
Jan
18
Su

The Big Chill

5 km 10 km
Jan
24
Sa

Frosty 5K - Waukesha

2 mi 5 km
Jan
24
Sa

Chilly Willy Winter Run Series

5 km 10 km Half Marathon
February 2026
Feb
14
Sa

Flannel 10K

2 mi 5 km 10 km
Feb
14
Sa

Steve Cullen Healthy Heart Club Run

2 mi 8 km
Feb
14
Sa

Chilly Willy Winter Run Series

5 km 10 km Half Marathon
Feb
15
Su

Cupid Shuffle - Wauwatosa

5 km 10 km
Feb
15
Su

Tri Faster Indoor Triathlon

Triathlon
Feb-Mar
28-1
Sa - Su

ARKTOS

Backyard Ultra 6 hr 12 hr 20 hr
March 2026
Mar
7
Sa

Lucky Leprechaun 7K

7 km
Mar
7
Sa

Pettit Indoor Marathon

Half Marathon Marathon
Mar
14
Sa

Grafton Lucky 5K

5 km
Mar
14
Sa

Shake Your Shamrocks

2 mi 5 km 10 km
Mar
14
Sa

Watertown Jig Jog 5K

5 km
Mar
14
Sa

Chilly Willy Winter Run Series

5 km 10 km Half Marathon
Mar
15
Su

Luck of the Irish

5 km 10 km
Mar
22
Su

First Call Half Marathon

5 km 10 km Half Marathon