Mark your calendars for the 13th annual Yankee Springs Winter Challenge on January 6, 2024!  Race distances are 10k, 25k, 50k, and 50 mile.

Start/finish location

Long Lake Outdoor Center
10370 Gun Lake Road
Middleville, MI 49333

Google map to the Outdoor Center >

Outdoor Center map >

Race Schedule

  • Check-in time for cabins
    Friday 5:00 pm
  • Packet Pickup
    Friday 5:00 pm-7:00 pm
    Saturday 5:00 am-10:00 am
  • 50 mile start
    6:00 am
  • 50k start
    8:00 am
  • 25k start
    9:00 am
  • 10k start
    10:00 am
  • Cut-off time for last lap of 50 miler
    3:30 pm
  • Cut-off time for all races
    8:00 pm
  • Check-out time for cabins
    Sunday 11:00 am

The Course

The courses for the Winter Challenge consist of a 10k loop and a 25k loop of mostly single track trail. The 10k course has 978' of elevation gain, and the 25k course has 1,388' of elevation gain. 50k runners do the 25k loop twice. 50 mile runners start by running a 5k loop and then do the 25k loop three times. Click here for a course map.

Aid Stations

The aid stations will be between 2 and 4 miles apart. There will be one aid station on the 10k course and three on the 25k course. You will pass the first one on the 25k course twice. There will also be an aid station at the start/finish. There will be a place for drop bags at the start/finish aid station.


Also continuing with Winter Challenge tradition, the finishers’ award is a snow globe. There will also be awards for top 3 overall male and female, awards for male and female masters, and age group awards.


We recommend staying in one of the rustic cabins or bunk houses at the start/finish area. The cabins and bunk houses are rustic but well-maintained and heated. (The bath house is not open during the winter, but there are vault toilets.) We take care of renting out the cabins, so sign up for lodging on the online registration. Individual bunk for $30, cabin for 4 for $80, cabin for 5 for $100. All lodging prices include 2 nights, both Friday and Saturday.


will be at the Long Lake Outdoor Center in the main lot and in the event field. Auxiliary parking will be available just East of the Outdoor Center at the Winter Sports Parking Area. As always we recommend carpooling to make the best use of limited parking.

Entry Fees

Hoodies are included in the race fee if you register by December 11.  After that date they will be available while supplies last.

This race typically fills up, so don't wait too long to sign up!

10k $50 $65
25k $70 $85
50k $85 $100
50mi $95 $110

If you’ve already registered but you want to add lodging, click here >