Half marathonRoad🇯🇵 Osaka, Japan

Osaka Half Marathon

Sunday, 31 January 2027In 4 months · Start 12:00

Runs alongside the elite Osaka Women's Marathon, from Osaka Castle Park to Yanmar Stadium Nagai on a flat, fast route. The 2h05 limit makes it a race for experienced runners.

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Facts checked 10 Oct 2026 against runjapan.jp.

Elevation gain

30 m

Flat · ↓ 30 m

Start altitude

8 m

above sea level, from terrain data

Temp at start

8°C

Peaks around 9°C

Entry fee

≈ $75

Open entry

Finishers

—

typical year

Course

Point to point

2.083h cut-off

Getting thereFly into ITM (Osaka), about 13 km from the start

Course map

A detailed route is not available for this race yet. The marker shows the race location.

Elevation profile

Flat: about 30 m of climbing and 30 m of descent. A detailed profile isn’t available for this race yet.

Race-day weather

At start

8°C

Peak during race

9°C

Humidity

58%

Chance of rain

19%

Wind

16 km/h

Race day in past years

Historical averages for 31 January ±3 days, 2016–2025, from 12:00 for 5 hours (70 days sampled). Source: Open-Meteo / ERA5.

What time could you run here?Adjust your goal time for this course’s hills and typical race-day weather.Race time calculator →

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<a href="https://irun42.com/race/osaka-half" title="Osaka Half Marathon on iRun42"><img src="https://irun42.com/badge/osaka-half.svg" width="300" height="120" alt="Osaka Half Marathon: course, elevation and race-day weather on iRun42" /></a>