Register before the April 1 price increase to take advantage of the current $90 registration fee for the event’s 36th running from Two Harbors to Duluth. Beginning April 1, the marathon entry fee increases to $100 where it will remain until registration closes June 1. Race day is Saturday, June 16 with a 7:45 a.m. start time. More than 6,000 marathoners already have registered. Visit www.GrandmasMarathon.com to register or for more information.