Proceeds from this race benefit the St. Croix Valley Ski Club youth skiing program at Wm. O'Brien State Park.

Online registration through 1/25/2017.
- Reduced rate for registering by Dec 1.
- First 100 adults to register online in advance for the 25km and 12.5km races receive a  free Marine O'Brien Ski Race hat. 

Start Times
Wood Ski Tour (8 km): 10:10 AM 
Adult Race Classical (12.5 & 25 km): 10:30 AM
Adult Race Skate (12.5 & 25 km): 11:00 AM
Children's Race: 1:45 PM 
(lined up according to age group mass start)

Day-of registration and packet pickup opens at 9:00 AM and closes 30 min prior to race start 

Location and Course
William O'Brien State Park Trail Center (located on west side of Hwy 95 approx. 2 miles north of Marine on St. Croix)

Children's Races
3 and under: 100M "Dash"
4 & 5 : 1/2 KM "Sprint"
6-9         2 KM "Thriller"
10-13   6 KM "Mad Dash"

Races are kicked off in the morning with an 8 km Wood Ski Tour over mostly flat and moderately hilly terrain.  Adult Races are 12.5 & 25 km (single and double loop), circling William O’Brien State Park on both flat and hilly terrain.


Top three places in the 12.5 & 25 km skate and classical races, male and female, will receive an artisan crafted mug and a custom "woodal" commemorating their victory.  Adult awards ceremony will occur immediately following the race.

All children will receive awards at ceremony immediately following the race. 

In addition, all adult racers have a chance to win prizes donated by local businesses (totaling over $3,000 value) via raffle. No awards will be mailed. 

Results will be posted on and


Children: 3 & under, 4-5, 6-7, 8-9, 10-11, 12-13 

(separate girls & boys classes)

Adults: 14-15, 16-17, 18-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70-79, 80 plus 
(separate male & female classes for both classical & skating)

Hammer Nutrition