There’s a small adjustment to tomorrow’s Souadabscook Canoe Race in hampden. Because of lower water, the race is a mile shorter this year and you “do” need to wear a helmet. We spoke with race director Rick O’Donald this afternoon at the Emerson Mill Bridge.A change also for the Marsh Stream Race on Sunday in Frankfort. It’ll start three miles up stream and finish three miles early. The sprint races are still on as well.