Boston Half Marathon

Boston Half Marathon is the Boston Athletic Association's half marathon, held in Boston, Massachusetts, on November 8, 2026. There is one distance, the half marathon (13.1 miles), starting at 8:00 a.m. The B.A.A. is the organization behind the Boston Marathon, which tells you what to expect on the operational side: accurate timing, a properly measured course and a well-drilled start.

Carrying the Boston name means the field skews experienced, so seed yourself honestly and resist the pull of the runners around you in the first two miles. As a goal race it sits well at the end of a fall block: ten to twelve weeks of preparation, a long run built to 12 miles, one weekly session at goal half pace and a second at threshold. It also works as a hard supported effort inside a longer buildup if your real target is a spring marathon.