September 17, 2018, 10:00 am EST
If space remains after week one of registration for the 2019 Boston Marathon, on Monday, September 17 at 10:00 a.m. ET, registration will re-open for any athlete who has a qualifying time. During week two of registration, we will continue to take the fastest athletes among all submissions. The 122nd running of the Boston Marathon will be held on Monday, April 16.