Boston Marathon 2027
- Date
- April 19, 2027
- Location
- Boston, USA
- Distance
- 42.2 km
- Difficulty
- Easy
- Field
- 28,487 finishers
The 2027 Boston Marathon takes place on Monday, April 19, 2027 in Boston, USA. A point-to-point course from Hopkinton to downtown Boston, Massachusetts, passing through Ashland, Framingham, Natick, Wellesley, Newton and Brookline before finishing on Boylston Street near Copley Square. Race-week weather is typically 5°C to 14°C.
Training for the Boston Marathon?
Coach Icarus builds your plan around your fitness and your schedule.
The course
A point-to-point course from Hopkinton to downtown Boston, Massachusetts, passing through Ashland, Framingham, Natick, Wellesley, Newton and Brookline before finishing on Boylston Street near Copley Square. The opening miles descend, followed by rolling terrain; from mile 16 the route hits the four Newton Hills, culminating in Heartbreak Hill just after mile 20. The final miles descend through Brookline and Kenmore Square, ending with the right onto Hereford Street and left onto Boylston; the course has a net elevation drop of about 140 metres.
Course summary source: runabc.co.uk
Course map & elevation
Distance
42.4 km
Elevation gain
80 m
Elevation loss
226 m
High / low
134 / 8 m
🛰️ Community-sourced GPX with DEM-corrected elevation — not an organizer-verified course.
Race-week weather
Typical high
14°C
Typical low
5°C
Year-to-year swing
±2.4°C
Rain
2.8 mm/day
Based on 2020-2025 of race-week history, with peak gusts around 23 km/h.
Difficulty
Entry difficulty: BQ time required — separate from how hard the course itself is.
Race facts
- Official race site
- baa.org ↗
- Start time
- 10:00
- Field size
- 28,487 finishers (2025)
- Boston qualifier
- Yes
Distances: 42.2 km
When is the Boston Marathon 2027?
The 2027 Boston Marathon takes place on Monday, April 19, 2027.
Training for the Boston Marathon?
Coach Icarus builds your plan around your fitness and your schedule.
Predict your finish time
Enter one recent race result and get predicted finish times across 5K, 10K, half marathon, and marathon.
Predicted Finish Time
52:07
Pace / km
5:13
Pace / mile
8:23
| Distance | Predicted Time |
|---|---|
| 5K | 25:00 |
| 10K | 52:07 |
| Half Marathon | 1:55:00 |
| Marathon | 3:59:47 |
Predictions assume similar fitness, course, and conditions — they are a starting point for goal setting, not a guarantee.
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