About This Event
The Arctic Frog Run transforms a December day in Mayville, Wisconsin into a winter trail running celebration across multiple distances. This loop-based event takes runners through terrain with modest elevation changes, creating an accessible yet genuine challenge for the trail running community. The December timing adds a distinctive seasonal element that defines the character of this Wisconsin gathering.
Choose Your Distance

15K
The Arctic Frog Run utilizes a loop-based course that's approximately 70% asphalt and 30% crushed limestone trail. All distances share the same basic loop structure, with the 15K covering 2 loops of 4.65 miles each, while the longer distances use 6 or 10 loops of a 5.17-mile circuit. The course offers scenic panoramic views of Mayville and features rolling terrain with moderate elevation gains. The mixed surface provides variety underfoot, transitioning between paved sections and crushed limestone trail segments. The loop format allows runners and crews to plan strategically, with multiple opportunities for support and pacing adjustments. An interactive course map is available through the race website, showing the yellow-marked route direction.

25K
The Arctic Frog Run utilizes a loop-based course that's approximately 70% asphalt and 30% crushed limestone trail. All distances share the same basic loop structure, with the 15K covering 2 loops of 4.65 miles each, while the longer distances use 6 or 10 loops of a 5.17-mile circuit. The course offers scenic panoramic views of Mayville and features rolling terrain with moderate elevation gains. The mixed surface provides variety underfoot, transitioning between paved sections and crushed limestone trail segments. The loop format allows runners and crews to plan strategically, with multiple opportunities for support and pacing adjustments. An interactive course map is available through the race website, showing the yellow-marked route direction.

50K
The Arctic Frog Run utilizes a loop-based course that's approximately 70% asphalt and 30% crushed limestone trail. All distances share the same basic loop structure, with the 15K covering 2 loops of 4.65 miles each, while the longer distances use 6 or 10 loops of a 5.17-mile circuit. The course offers scenic panoramic views of Mayville and features rolling terrain with moderate elevation gains. The mixed surface provides variety underfoot, transitioning between paved sections and crushed limestone trail segments. The loop format allows runners and crews to plan strategically, with multiple opportunities for support and pacing adjustments. An interactive course map is available through the race website, showing the yellow-marked route direction.

50 Miles
The Arctic Frog Run utilizes a loop-based course that's approximately 70% asphalt and 30% crushed limestone trail. All distances share the same basic loop structure, with the 15K covering 2 loops of 4.65 miles each, while the longer distances use 6 or 10 loops of a 5.17-mile circuit. The course offers scenic panoramic views of Mayville and features rolling terrain with moderate elevation gains. The mixed surface provides variety underfoot, transitioning between paved sections and crushed limestone trail segments. The loop format allows runners and crews to plan strategically, with multiple opportunities for support and pacing adjustments. An interactive course map is available through the race website, showing the yellow-marked route direction.