Boston Marathon takes place on Mon, Apr 19, 2027 in Hopkinton, United States. The main route is 42.2 km.
- Date
- Mon, Apr 19, 2027
- Start
- Hopkinton 🇺🇸
- Distance
- 42.2 km
- Climbing
- 248 m
- Level
- Open to all
The Boston Marathon is the world's oldest annual marathon, featuring a point-to-point net-downhill course from Hopkinton to Boston that includes the challenging Newton Hills.
Official event pageWhat would it take you?
Pick the level closest to yours for an estimate of finish time on this course and the training a solid preparation needs.
Estimated finish
3:55–4:45
Peak-week training
5–7 h/week
A model estimate from distance, climbing and level, not a promise. Conditions, drafting and pacing move it.
IntervalCoach turns those weekly hours into a concrete plan built around your actual fitness. Start with this race as your goal
Your road to race day
Race day at Boston Marathon is 35 weeks away. This is how a coach divides that time. The first phase starts now.
01Base23 weeks · Aug 18, 2026 – Jan 25, 2027
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · Jan 26, 2027 – Mar 8, 2027
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
03Peak3 weeks · Mar 9, 2027 – Mar 29, 2027
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
04Taper2 weeks · Mar 30, 2027 – Apr 12, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · Apr 13, 2027 – Apr 19, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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