Registration for the 2020 Boston Marathon Opens Monday, September 9
Registration for the 2020 Boston Marathon opens on Monday, September 9, 2019 at 10:00 a.m. ET. The B.A.A. will use the same process to register qualified participants as in recent years, allowing the fastest qualifiers to register first. Registration will be held entirely online at www.baa.org and qualifying performances achieved on or after September 15, 2018 may be submitted for entry. The 124th annual race will mark the 35th consecutive year that John Hancock will serve as principal sponsor.