Read the full edition note

Boston Marathon · April 2027

Registration

Qualifier registration is closed. A standard was not a bib.

In this guide · 2 decisions
  1. 01Closed
  2. 02Downhill index

Closed

Open 14 September 2026 at 10:00 a.m. ET through 18 September at 5:00 p.m. ET, in Athletes' Village. Not first come. The 9/29/2026 update says the cutoff was 5 minutes 17 seconds.

The same page's historical table lists 2027 as field size 30,000, cutoff 5:17, and 8,019 qualifiers not accepted. About 1,000 additional places were a random selection for applicants who missed that cutoff.

Downhill index

For 2027 registration, a net downhill of 1,500 feet (457.2 m) or more adds time. 1,500–2,999 feet adds 5:00. 3,000–5,999 feet adds 10:00. 6,000 feet (1,828.6 m) or more is not accepted. Net downhill means start elevation minus finish elevation.

The qualifying window began 13 September 2025. Age is age on 19 April 2027. We did not re-copy the age-group table into this page.

Official race site ↗

Continue the plan

Entry confirmed? Build the travel chainMove from dashboard status to arrival, expo, assigned transport, and departure.

Edition status

The qualify page, opened 4 November 2026, dates the race 19 April 2027 and says qualifier registration closed on 18 September 2026. The cutoff for acceptance was 5:17 under the age-group standard. The course description is the B.A.A. Race Course PDF uploaded March 2026. That file is not labeled 2027, and it has no GPX. Wave clocks in the PDF are not copied here.