4imprint Oshkosh Half Marathon, Relay & Loop the Lake

Event Overview

The 4imprint Oshkosh Half Marathon, Half Marathon Relay, & Loop the Lake is the perfect New Years resolution spring race to train for. There is a distance available for everyone! Each course will take participants along the Wiouwash Trail and Riverwalk for scenic & serene views. Participants will enjoy post-race food & beverage including Fox River Brewing Co. beer to those 21 & older.

New for 2025

The Half Marathon course will be run in the opposite direction of 2024, heading over the 21 bridge and taking a right through Rainbow park, running North on Heritage Trail. The Loop the Lake is a new addition for 2025, replacing the out-and-back 5K event. It is a 4 Nautical Mile loop around the lake (~4.7 mi) that follows the half marathon course through the Heritage Trail and then continues back to Fox River Brewing Co. via the Wiouwash trail.