TheMarathon Clinic
Course pacing

How to pace the Osaka Marathon

The Osaka Marathon is a largely flat but gently rolling marathon, with about 107 m of climbing and 122 m of descent (a near-level net change). Pace it by even effort: ease back on the few rises and let the descents run, rather than forcing an identical pace on every kilometre.

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Next Osaka Marathon

Sunday 28 February 2027

About 35 weeks away · 245 days · projected from the usual race weekend

Build a plan for this race

Elevation gain

107m

Elevation loss

122m

Net change

-14m

Terrain

Rolling

Typical race-day conditions

February

At the gun

5°C

~9:00am start

By the finish

9°C

warms through the morning

Humidity

62%

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.

Your target pace

4:59/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.

Osaka Marathon

Osaka, Japan

Hover the map or the profile, the other follows.

This one is won on the back half.

0 km5101520253035400 m5 m10 m15 m20 m25 m30 m
km 31–32 climbs 24 m, right where most runners fade.
climb descenttarget pace

The coach's read

Flat and fast through the heart of the city, with cool late-February air to match. The crowds are dense down Midosuji early, so hold back and run even effort, then let the flat run-in to the bay reward your patience.

WHY  At 3:30:00, that's about 4:59/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

Hardest stretch

The km to 32 km: 5:28/km at +1.7%.

Free speed

The km to 12 km: 4:36/km at -1.6%.

Key climbs & descents
Your race-day splits
MarkerTarget paceClock
1 km4:38/km4:38
2 km4:55/km9:33
3 km5:12/km14:45
4 km4:51/km19:36
5 km5:08/km24:44
6 km4:59/km29:43
7 km5:02/km34:45
8 km4:50/km39:35
9 km5:12/km44:47
10 km4:58/km49:44
11 km5:14/km54:58
12 km4:36/km59:34
13 km4:52/km1:04:27
14 km4:50/km1:09:17
15 km5:05/km1:14:21
16 km4:59/km1:19:21
17 km4:58/km1:24:18
18 km4:59/km1:29:17
19 km4:58/km1:34:15
20 km4:57/km1:39:12
21 km5:07/km1:44:19
22 km4:52/km1:49:11
23 km4:58/km1:54:09
24 km4:59/km1:59:09
25 km5:00/km2:04:08
26 km4:59/km2:09:07
27 km4:59/km2:14:06
28 km4:59/km2:19:05
29 km5:06/km2:24:11
30 km5:02/km2:29:12
31 km4:58/km2:34:10
32 km5:28/km2:39:38
33 km5:01/km2:44:39
34 km4:38/km2:49:17
35 km4:46/km2:54:04
36 km4:59/km2:59:02
37 km5:01/km3:04:03
38 km4:54/km3:08:58
39 km4:59/km3:13:57
40 km4:55/km3:18:52
41 km5:14/km3:24:06
42 km4:56/km3:29:02
Finish4:59/km3:30:00

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.

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·Race-day guide

Pacing the Osaka Marathon

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

01The course

Kilometre by kilometre

  • The climbing that matters: 30.9–32.3 km (+24 m at 1.6%), 40.0–41.3 km (+12 m at 1.0%), 8.0–9.7 km (+11 m at 0.7%). Run these by effort; your pace will and should slow.
  • Where you get it back: 32.4–34.7 km (-26 m down), 11.1–11.9 km (-17 m down), 0.2–1.0 km (-16 m down). Let these run without braking or hammering: relaxed, quick feet.
02The plan

How to pace the Osaka Marathon

  1. Read the course before race day. Flat, fast tour of the city. Flat and fast through the heart of the city, with cool late-February air to match.
  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. Give the climbs effort, not pace. Let your pace slow on the climbs while holding effort steady; chasing your flat pace uphill is the classic way to blow up. The biggest is around 31–32 km (+24 m).
  4. Protect your quads on the descents. Stay relaxed and let the descents come to you. Hammering downhill banks a few seconds now and wrecks your legs for the closing kilometres; the model deliberately caps the downhill benefit for this reason.
  5. Plan your finish. The crowds are dense down Midosuji early, so hold back and run even effort, then let the flat run-in to the bay reward your patience.
03Questions

Osaka Marathon, answered

Is the Osaka Marathon hilly?
It's largely flat but gently rolling, with around 107 m of total climbing over the 42.2 km and a biggest single climb of about 24 m. None of it is severe, but the rises add up.
How should I pace the Osaka Marathon?
The Osaka Marathon is a largely flat but gently rolling marathon, with about 107 m of climbing and 122 m of descent (a near-level net change). Pace it by even effort: ease back on the few rises and let the descents run, rather than forcing an identical pace on every kilometre.
What is the hardest part of the Osaka Marathon?
The toughest climb runs roughly 31–32 km, gaining about 24 m at an average 1.6%. Flat and fast through the heart of the city, with cool late-February air to match.
Is the Osaka Marathon a good course for a PB?
It can be. It's fast enough for a personal best if you pace by effort and don't fight the rolling sections; just don't expect a dead-flat racetrack.
How much elevation gain does the Osaka Marathon have?
About 107 m of total gain and 122 m of loss over the 42.2 km, modelled from the official route and the SRTM elevation model.

From the journal

2026-06-10 · 4 min

Why your marathon paces should come from a real run

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Train for Osaka. 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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