Tokyo Marathon
Tokyo, Japan
The Tokyo Marathon is one of the six World Marathon Majors, famous for its exceptional organisation, enthusiastic crowds, and a fast, flat course that draws elite runners and ballot entrants from around the world.
Race profile
Date
First Sunday in March
Course type
Loop
Elevation
Flat
Established
2007
Typical race-day weather
Cool, often overcast — ideal racing conditions
How to enter
Ballot entry
Entry by public ballot or charity place
Pace planning for Tokyo Marathon
Tools to help you race smart
Race Time Predictor
Estimate your marathon finish time
Pace Calculator
Convert pace, speed, distance and time
Pace Band Generator
Print a split-by-split pace band
Negative Split Calculator
Plan a faster second half
GAP Calculator
Adjust effort for hills
Heat Adjusted Pace
Correct target pace for warm conditions
Tokyo Marathon — common questions
Is the Tokyo Marathon a fast course?
The Tokyo Marathon is flat — it is a loop course. Typical race-day temperatures range from 5°C to 15°C. Cool, often overcast — ideal racing conditions.
When is the Tokyo Marathon?
The Tokyo Marathon is typically held in March. The usual date is the First Sunday in March.
How do I enter the Tokyo Marathon?
Entry by public ballot or charity place
How do I pace myself at the Tokyo Marathon?
Use the RunReps Race Time Predictor to estimate your finish time based on a recent race result, then the Pace Band Generator to create split-by-kilometre targets. The flat course makes consistent pacing straightforward — a slight negative split (faster second half) is the optimal strategy.