MajorMarathon
Pace your Tokyo Marathon
Tokyo Marathon Pace Calculator — build marathon splits from your goal time and the real course elevation.
Sun, Mar 7, 2027
Your race plan
Awaiting your goalSet a goal time to build your splits
- Splits shaped by the course's climbs and descents
- Even, negative, or positive split strategies
- Send the plan straight to your watch
Course facts
Tokyo Marathon records & finishers
| Men's course record | 2:02:16 — Benson Kipruto (2024) |
|---|---|
| Finishers | 36,175 (2025) |
Pace targets
What pace do you need for a goal-time Tokyo Marathon?
Average pace per kilometer and mile for common finish-time goals at the Tokyo Marathon, based on its 42.2 km distance.
| Goal finish | Pace per km | Pace per mile |
|---|---|---|
| 3:00:00 | 4:16/km | 6:52/mi |
| 3:30:00 | 4:59/km | 8:01/mi |
| 4:00:00 | 5:41/km | 9:09/mi |
| 4:30:00 | 6:24/km | 10:18/mi |
| 5:00:00 | 7:07/km | 11:27/mi |
Course notes
How to pace the Tokyo Marathon
Tokyo is fast and mostly flat, with a gentle net drop over the first 5 km out of Shinjuku and a few highway overpasses and turnaround points that break rhythm rather than cost real time.
The out-and-back sections mean you will run stretches into a headwind and then with it; do not read too much into a single slow or fast kilometre through those.
The course is flattest in the second half through Ginza and out toward the finish near Tokyo Station. A controlled first 10 km sets up a strong, even close.
Set a goal finish time above and the calculator builds a split plan for this course, grade-adjusted from its elevation profile. New to pacing? Read the pacing strategy guide.
FAQ
Tokyo Marathon pacing FAQ
Is the Tokyo Marathon course flat?
Tokyo is flat and fast, with a slight net downhill. The only disruptions to pace are a handful of overpasses and out-and-back turnarounds, none of which involve significant climbing.
How does wind affect Tokyo Marathon pacing?
The out-and-back layout means you will face a headwind on some segments and a tailwind on others. Pace by effort through those sections rather than chasing an even lap split.
How do I calculate marathon splits?
Choose a marathon course or distance, enter your goal finish time, select kilometers or miles, and generate a split-by-split pacing plan.
Should marathon pace change on hills?
A hill-adjusted plan usually slows the target pace on climbs and allows faster splits on descents so the effort stays more even across the course.
What is an elevation-adjusted pace plan?
An elevation-adjusted pace plan uses the course profile to distribute effort by split instead of assuming the same pace for every kilometer or mile. The goal is to slow slightly on climbs, recover time on descents, and still hit your target finish time.
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