Boston Marathon Registration 2027
The Boston Marathon does not use a lottery—entry is based on qualifying times. Registration typically lasts only a few days in September, making timing critical.
When does Boston Marathon registration open?
Boston Marathon registration for 2027 is expected during a short window in September 2026 (exact days are announced after the prior year’s race). If you are looking for Boston Marathon registration dates for 2026 or 2027, plan for roughly five days in September—Boston Marathon registration can close before the weekend is over.
How does entry work?
You need a valid Boston qualifying time from an eligible marathon. Charity and invitational entries follow separate rules. There is no general lottery for time-qualified runners—you either meet the standard and register in time, or you pursue charity or other programs.
Key dates
- Registration opens: Sep 2026 (typically ~5 days; exact dates TBA)
- Registration closes: Same week as opening (short window)
- Race day: Apr 19, 2027
Don’t miss registration
RaceDrop emails you once—24 hours before the published signup window—for the Abbott World Marathon Majors you select on the home page. Get notified before Boston Marathon registration opens.
FAQ
When does Boston Marathon registration open?
Usually in September for the following April’s race. Boston Marathon registration dates are published by the B.A.A. each year.
How hard is it to qualify for Boston?
You must run an eligible marathon faster than the published qualifying time for your age and gender. Standards tighten periodically.
How fast does Boston registration fill?
The window is only a few days. If you qualify, you should be ready to register as soon as your wave opens.