The original letter written by Fred Elsethagen recommended nine events: skiing,
mountaineering, canoeing, kayaking,
horseback riding,
water skiing, running,
fishing boat and sailboat. In 2015, low snowpack forced the replacement of the ski legs with new alpine running and mountain biking legs, for a total of two running and three cycling legs. The new running leg was added at the beginning of the race, before the established road running leg, and the new mountain bike leg was added at the end, after the kayak leg. The standard format was resumed the following year.
Cross country skiing Cross country skiing, added in 1979, kicks off the Race. This leg consists of two figure-eight loops, beginning and ending at the upper Mount Baker Ski area. It has been extended from one mile in the first three years to four miles at present.
Downhill skiing/snowboarding Downhill skiing is one of the original components of the race. Skiers hike uphill for approximately 1.5 miles, ascending nearly a thousand feet of elevation, and then ski back to near their starting point.
Running Added in 1975, the third stage of the race is an foot race down the
Mount Baker Highway, from the upper Mount Baker ski area to the Shuksan Department of Transportation station. The runners drop over two thousand feet in elevation. To further the difficulties, the racers are running on hard asphalt. The running leg has been the most unchanged of the events. The first two years' running leg was long. The third year running was . The fourth year, in 1979, the running leg was extended to and has remained unchanged since that time.
Road biking Bicycling, the longest leg of the race by distance, was one of the original components of the 1973 event. The road bicycle leg passes through the towns of
Glacier and
Maple Falls, and leaves the Mount Baker Highway for Silver Lake Road. The road bicycle leg finishes on the banks of the
Nooksack River in the town of
Everson. The leg has changed distance on eight different occasions. It debuted at , and would later grow to a maximum distance of . Starting in 1987, the bicycling leg was long. Since 2010, the distance has again been roughly as the bikes go north from Maple Falls on Silver Lake Road, though some small changes in the race course have occurred.
Canoeing Canoeing was one of the original events from the 1973 race. The canoe leg is the second longest by distance, covering , but typically is the longest leg by duration. When first introduced in 1973, this leg allowed both two-man canoes and one-man kayaks. After sea kayaks were made the only mode of transportation for the final leg of the race, they were eliminated as an option for the Nooksack River leg of the race. This leg of the race is the only leg with two racers, and starts in Everson and ends at
Hovander Park in Ferndale. The canoe leg was canceled in 2008 (and almost canceled in 1997) because of the unsafe level of the Nooksack River. This is possibly the most dangerous part of the race. Lorri Rasmussen of Bellingham was killed in 2002 while training for the race. Her canoe tipped and she was swept up in a log jam.
Cyclocross biking Added in 1990, the Cyclocross bike leg stretches from the banks of the Nooksack River in Hovander Park to Squalicum Harbor on Bellingham Bay. The course is often updated, most recently in 2023, when the course was updated to be approximately long.
Kayaking The Bellingham Bay leg was added in 1980, and it was made exclusively a kayaking event in 1992. The final leg of the event that stretched across Bellingham Bay was added to tie in the Ski to Sea name and to add a more exciting finish to the race. Originally this leg used
Hobie cats, though sailboats were allowed in 1981. In 1990 the choice of sailboats or sea kayaks was added for this leg of the Ski to Sea Race. Two years later, the leg was restricted to kayaks, because wind to move sailboats is unreliable on Bellingham Bay. Today, kayakers paddle across Bellingham Bay from Squalicum Harbor on the north side of Bellingham to Marine Park in Fairhaven on the south side of Bellingham, then beach their kayaks and run across land to ring a bell at the finish line. == The baton ==