Eastern States 20 Miler & Half Marathon

The Eastern States 20 Miler & Half Marathon is run in Kittery, Maine, on March 21, 2027, and offers two long-course options: the 20 Miler (32.2 kilometers) and the half marathon (13.1 miles). Both are long road efforts that reward runners already carrying a winter of mileage in their legs.

A 20-mile race in late March is a classic spring marathon rehearsal. Run it at your projected marathon effort rather than racing it, and you get a full dress rehearsal for fueling, pacing and gear about six weeks out from a May goal race. The half marathon is the better pick if you want a hard, honest time trial or a season opener. Either way, a 12 to 16 week build with a progressive weekly long run and some sustained work at goal pace is the preparation that pays off here.