Gentle hills with wildflower meadow trail

Arctic Frog Run

15K / 25K / 50K / 50 Miles·Mayville, Wisconsin·December 20, 2025
4 distances

Photo by Lukasz Szmigiel on Unsplash

About This Event

The Arctic Frog Run presents itself as a beginner-friendly ultramarathon, but organizers are quick to caution runners not to underestimate this December challenge in Mayville, Wisconsin. What makes this race distinctive is its potential transformation into a winter wonderland, offering runners a unique cold-weather running experience in the rolling terrain of southeastern Wisconsin. The course provides panoramic views of Mayville while testing runners across multiple distance options from 15K to 50 miles. The loop-based format allows for strategic pacing and crew support, while the mixed surface of asphalt and crushed limestone provides varied footing throughout the race. With eleven years of results history, this event has established itself as a reliable winter option for runners seeking to extend their season or tackle their first ultra in more forgiving terrain. The race's emphasis on being accessible to newcomers, combined with the challenge of potential winter conditions, creates an interesting balance for the trail running community.

Choose Your Distance

Gentle hills with wildflower meadow trail

15K

417 ft gain

The Arctic Frog Run presents itself as a beginner-friendly ultramarathon, but organizers are quick to caution runners not to underestimate this December challenge in Mayville, Wisconsin. What makes this race distinctive is its potential transformation into a winter wonderland, offering runners a unique cold-weather running experience in the rolling terrain of southeastern Wisconsin. The course provides panoramic views of Mayville while testing runners across multiple distance options from 15K to 50 miles. The loop-based format allows for strategic pacing and crew support, while the mixed surface of asphalt and crushed limestone provides varied footing throughout the race. With eleven years of results history, this event has established itself as a reliable winter option for runners seeking to extend their season or tackle their first ultra in more forgiving terrain. The race's emphasis on being accessible to newcomers, combined with the challenge of potential winter conditions, creates an interesting balance for the trail running community.

Misty green hillside at dawn

25K

417 ft gain

The Arctic Frog Run presents itself as a beginner-friendly ultramarathon, but organizers are quick to caution runners not to underestimate this December challenge in Mayville, Wisconsin. What makes this race distinctive is its potential transformation into a winter wonderland, offering runners a unique cold-weather running experience in the rolling terrain of southeastern Wisconsin. The course provides panoramic views of Mayville while testing runners across multiple distance options from 15K to 50 miles. The loop-based format allows for strategic pacing and crew support, while the mixed surface of asphalt and crushed limestone provides varied footing throughout the race. With eleven years of results history, this event has established itself as a reliable winter option for runners seeking to extend their season or tackle their first ultra in more forgiving terrain. The race's emphasis on being accessible to newcomers, combined with the challenge of potential winter conditions, creates an interesting balance for the trail running community.

Aerial view of lush green rolling landscape

50K

417 ft gain

The Arctic Frog Run presents itself as a beginner-friendly ultramarathon, but organizers are quick to caution runners not to underestimate this December challenge in Mayville, Wisconsin. What makes this race distinctive is its potential transformation into a winter wonderland, offering runners a unique cold-weather running experience in the rolling terrain of southeastern Wisconsin. The course provides panoramic views of Mayville while testing runners across multiple distance options from 15K to 50 miles. The loop-based format allows for strategic pacing and crew support, while the mixed surface of asphalt and crushed limestone provides varied footing throughout the race. With eleven years of results history, this event has established itself as a reliable winter option for runners seeking to extend their season or tackle their first ultra in more forgiving terrain. The race's emphasis on being accessible to newcomers, combined with the challenge of potential winter conditions, creates an interesting balance for the trail running community.

Gentle hills with wildflower meadow trail

50 Miles

417 ft gain

The Arctic Frog Run presents itself as a beginner-friendly ultramarathon, but organizers are quick to caution runners not to underestimate this December challenge in Mayville, Wisconsin. What makes this race distinctive is its potential transformation into a winter wonderland, offering runners a unique cold-weather running experience in the rolling terrain of southeastern Wisconsin. The course provides panoramic views of Mayville while testing runners across multiple distance options from 15K to 50 miles. The loop-based format allows for strategic pacing and crew support, while the mixed surface of asphalt and crushed limestone provides varied footing throughout the race. With eleven years of results history, this event has established itself as a reliable winter option for runners seeking to extend their season or tackle their first ultra in more forgiving terrain. The race's emphasis on being accessible to newcomers, combined with the challenge of potential winter conditions, creates an interesting balance for the trail running community.