- Sponsors | Events & Activities | Updated Musher List | Entry Forms & Rules | Become a Member | The Legend | Past Champions 2003 Race Date set for March 2! The 2003 race week will run Friday, February 28 thru March 6. Plan on a 350-mile Marathon race course from Duluth to Trail Center and back for a Duluth finish; the Mid-distance race course will run from Duluth with a finish in theTofte area.beargrease.com