London Marathon 2027
London, United Kingdom
The course
Point-to-point 26.2-mile course starting from three color-coded starts in Blackheath and Greenwich, merging before mile 3 in Woolwich. It passes the Cutty Sark in Greenwich, crosses Tower Bridge just before halfway, loops through Canary Wharf and the Isle of Dogs, then returns along the Embankment past Big Ben and Parliament to finish on The Mall in front of Buckingham Palace. Mostly flat with gentle undulations; closed roads.
Course summary source: sportstravelmagazine.com
Course map & elevation
No GPS track for this course yet.
We haven't mapped the London Marathon route yet. Elevation data will appear here once a licensed or organizer-verified course map is available.
Training for the London Marathon?
Coach Icarus builds your plan around your fitness, your schedule, and this course's elevation.
Race-week weather
Typical high
15°C
Typical low
6°C
Year-to-year swing
±2.2°C
Rain
1.5 mm/day
Based on 2020-2025 of race-week history, with peak gusts around 19 km/h.
Difficulty
Entry difficulty: Lottery / ballot — separate from how hard the course itself is.
Race facts
- Official race site
- tcslondonmarathon.com ↗
- Start time
- 09:35
- Field size
- 59,830 finishers (2026)
- Boston qualifier
- Yes
Distances: 42.2 km
Training for the London Marathon?
Coach Icarus builds your plan around your fitness, your schedule, and this course's elevation.
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