On Wednesday, September 19 at 5:00 p.m. ET, week two of registration for the 2019 Boston Marathon closes. If space remains after the first two weeks, registration will re-open to all qualifiers on Monday, September 24 at 10:00 a.m. ET on a first-come, first-served basis until the maximum field size for qualified athletes is reached.
September 19, 2018, 5:00 pm EST