2026 operating status

Know what is final.

Confirmed for 2026

Race date

19 April 2027. Age for the standards is age on that day.

Source
Confirmed for 2026

Entry

Qualifier registration closed 18 September 2026 at 5:00 p.m. ET. Cutoff for acceptance was 5:17 under the standard. About 1,000 more places were a random draw for applicants who were not past that cutoff. The qualify page's table lists field size 30,000 and 8,019 qualifiers not accepted.

Source
Previous-edition reference

Course file

No GPX on the marathon page. The route towns, mile table, and MBTA chart are from the Race Course PDF in /wp-content/uploads/2026/03/. Not a 2027 edition label.

Source
Read the full edition note

Boston Marathon · April 2027

Weather & climate

No climate table was on the qualify page or the course PDF.

In this guide · 1 decisions
  1. 01Use the forecast that week

Use the forecast that week

The 5–14°C band and 30% rain figure already in this record were not re-read today. Pack for a start-line wait in April, then check a forecast.

Race-week weather

The seven-day window opens only when it matters

Checking the race-week forecast window…

Continue the plan

Apply the forecast to the start chainPlan layers, transport, start-village waiting, finish exit, and reunion.

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.