2023 Registration dates announced

Registration for the 2023 Ice Age Trail 50 will open on Sunday, December 18 — at noon CT for the 50-miler; 3:00 p.m. for the 50k and 6:00 for the Half Marathon.

A special early registration event will also be held on Saturday, December 10 for the following groups:

1. 2022 Ice Age Trail 50 volunteers.

2. 10x finishers of any Ice Age race(s).

3. Top ten finishers (male and female) in all three 2022 IAT races.

4. Top three age division winners in all three 2022 races.

5. 2022 deferrals.

6. 50k Mash-Up participants.

If you qualify for pre-registration, please watch your inbox for instructions in the coming weeks.

We hope you can join us for our 41st annual race on Saturday, May 13, 2023!


Wait list update

The 2024 IAT 50k and Half Marathon wait lists are full. The 50-mile wait list remains open until ...

2024 ice Age trail races are sold out

We have reached capacity for all three Ice Age Trail races, but are keeping a wait list on ...

Registration update

Our service provider is resetting registration for the 50-mile race and we are planning to reopen at 1:00 ...