TheMarathon Clinic
Course pacing

How to pace the Tokyo Marathon

The Tokyo Marathon is a flat and fast marathon, with about 25 m of climbing and 61 m of descent (a net drop of 36 m). Pace it by even effort; on a course this flat, all but even splits will follow.

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Abbott World Marathon MajorCommunity route data
Next Tokyo Marathon

Sunday 7 March 2027

About 36 weeks away · 252 days · projected from the usual race weekend

Build a plan for this race

Elevation gain

25m

Elevation loss

61m

Net change

-36m

Terrain

Flat

Typical race-day conditions

March

At the gun

9°C

~9:10am start

By the finish

12°C

warms through the morning

Humidity

59%

morning average

Conditions

Ideal

cool, fast racing weather

Goal finish time
::
StrategyEven effort keeps your effort steady and lets pace drift with the terrain, slower up the climbs and faster down. Even pace holds one pace the whole way and ignores the hills.
Splits every
Units
Race conditionsPace for an ideal cool day, a typical race-day, or a warm-outlier year. Warmer conditions slow your realistic finish, and the splits below adjust to match.
AcclimatisedAcclimatised: you already train and race in conditions like these, so your body has adapted. You sweat sooner and more, hold a lower heart rate and core temperature, and barely lose time to the heat.Not yet: you mostly train in cooler weather, so a warm race hits harder, a higher heart rate, an earlier fade, and roughly twice the slowdown an adapted runner sees. It comes good after about two weeks of training in the heat.
Typical condition impactTypical March · +0.4%

A typical March morning sits around 9°C at the gun and 12°C by the finish. Adapted to conditions like these, the heat may still slow you about +0.4% against an ideal cool day. That moves your 3:30:00 goal to about 3:30:45, and the pace below already allows for it.

Your target pace

5:00/km

Your average across the whole course. The splits below shift it for every climb and descent, so your effort stays even the whole way.

Tokyo Marathon

Tokyo, Japan

Hover the map or the profile, the other follows.

0 km51015202530354010 m20 m30 m40 m
climb descenttarget pace

The coach's read

A flat, fast course with a gentle overall drop and only a few underpass dips and rises to break the rhythm. Pace it even, stay patient in the crowded opening kilometres, and let the slight downhill tendency work quietly for you late on.

WHY  Allowing for a typical March day, that's about 5:01/km of effort the whole way, the splits below shift with the gradient, not your pace.

Ease the climbs, let the descents run, and stay relaxed through the second half.
JHJason HuntFounder & Head Coach
Your race-day splits
MarkerTarget paceClock
1 km4:55/km4:55
2 km4:58/km9:53
3 km4:44/km14:37
4 km4:51/km19:28
5 km4:53/km24:20
6 km4:51/km29:11
7 km4:59/km34:10
8 km5:04/km39:15
9 km5:00/km44:14
10 km5:00/km49:14
11 km4:58/km54:12
12 km5:03/km59:15
13 km5:03/km1:04:18
14 km5:01/km1:09:19
15 km5:06/km1:14:25
16 km4:57/km1:19:22
17 km4:57/km1:24:19
18 km5:03/km1:29:22
19 km5:01/km1:34:24
20 km4:58/km1:39:22
21 km5:00/km1:44:21
22 km5:05/km1:49:26
23 km4:59/km1:54:26
24 km5:00/km1:59:26
25 km5:05/km2:04:31
26 km5:01/km2:09:32
27 km4:57/km2:14:29
28 km5:03/km2:19:32
29 km5:02/km2:24:34
30 km5:01/km2:29:35
31 km4:59/km2:34:34
32 km5:03/km2:39:36
33 km5:01/km2:44:37
34 km5:02/km2:49:39
35 km5:01/km2:54:41
36 km5:01/km2:59:42
37 km5:02/km3:04:43
38 km4:59/km3:09:42
39 km5:01/km3:14:43
40 km5:02/km3:19:45
41 km4:59/km3:24:44
42 km5:03/km3:29:47
Finish5:00/km3:30:45

Even-effort splits distribute your goal time by the energy cost of each gradient (the Minetti grade-cost model), not an even pace. Wind, heat, turns, and your own downhill tolerance still apply, so run the climbs by feel and stay relaxed on the descents.

Train for this course, not just the distance.

A coach builds the climbs and descents into your plan.

Get a coachAll courses
Take it furtherAdjust for the heatPlan your splits
·Race-day guide

Pacing the Tokyo Marathon

A coach's read on how the Tokyo Marathon runs, and how to spend your effort across it.

01The course

Kilometre by kilometre

  • There are no climbs to plan around: the profile stays within a narrow band the whole way, so the course runs as a flat, even-effort race.
  • Where you get it back: 2.4–5.6 km (-27 m down). Let these run without braking or hammering: relaxed, quick feet.
02The plan

How to pace the Tokyo Marathon

  1. Read the course before race day. Flat and fast, gentle net drop. A flat, fast course with a gentle overall drop and only a few underpass dips and rises to break the rhythm.
  2. Pace by effort, not just the watch. Set the effort you can hold for the whole marathon, then let the pace flex with the ground: a little slower up, a little faster down, the same effort throughout.
  3. Hold it steady and even. With no real hills to plan around, the win is discipline: settle on your goal pace early, hold it through the middle, and avoid the temptation to surge.
  4. Plan your finish. Pace it even, stay patient in the crowded opening kilometres, and let the slight downhill tendency work quietly for you late on.
03Questions

Tokyo Marathon, answered

Is the Tokyo Marathon hilly?
No, it's a flat course, with only about 25 m of total climbing over the 42.2 km. There's nothing in the terrain you need to pace around.
How should I pace the Tokyo Marathon?
The Tokyo Marathon is a flat and fast marathon, with about 25 m of climbing and 61 m of descent (a net drop of 36 m). Pace it by even effort; on a course this flat, all but even splits will follow.
Is the Tokyo Marathon a good course for a PB?
Yes. It's flat and fast, so on a calm day it's one of the better courses for a personal best. The limiter is your fitness and pacing discipline, not the terrain.
How much elevation gain does the Tokyo Marathon have?
About 25 m of total gain and 61 m of loss over the 42.2 km, modelled from a community route trace pending the official figures.

From the journal

2026-06-10 · 4 min

Why your marathon paces should come from a real run

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Train for Tokyo. Not just the distance.

A coach builds this course's climbs, descents and race-day pacing into a plan made for you.

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