World Marathon Major

Boston Marathon 2027

28 weeks to go.

How to prepare: 16-week plan

To be ready on the start line, begin specific training by Monday, 28 December 2026. The dates below are counted back from race day.

28 December 2026 → 7 February 2027 · 16 to 11 weeks out
Aerobic base
Three or four runs a week, mostly in zone 2, with a long run growing 1-2 km a week up to 18-20 km.
8 February 2027 → 14 March 2027 · 10 to 6 weeks out
Build
Add race-pace work (tempo runs, progressions) and push the long run up to 28-32 km. This is where the marathon is decided.
15 March 2027 → 4 April 2027 · 5 to 3 weeks out
Sharpening
Peak volume, last 30-32 km long run about three weeks out. Test race-day shoes, gels and breakfast.
5 April 2027 → 19 April 2027 · last 2 weeks
Taper
Cut volume by 30-50% while keeping short race-pace segments. Sleep, carb-load in the last 2-3 days, nothing new.

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Information from public sources (September 2026). Times, courses and fees are set by the organizer: always check the official website.