Half marathons in Japan
14 half marathons in Japan.
The next one is the Hadano Tanzawa Minase Marathon (Half) on 6 December 2026.
The flattest is the Tokyo New Year Half Marathon (20 m of climbing); the hilliest is the Hiroshima by UTMB 25K (880 m).
For cool racing conditions, the Osaka Half Marathon usually starts around 8°C.
Hadano Tanzawa Minase Marathon (Half)
Hadano, Japan
6 Dec 2026In 42 days
Gain
300 m
Start temp
8°C
Entry
$45
Top 10, men 40–49: No data
Half marathonOpen entryhillysmall field
Tokyo New Year Half Marathon
Tokyo, Japan
10 Jan 2027In 3 months
Gain
20 m
Start temp
4°C
Entry
$55
Top 10, men 40–49: No data
Half marathonOpen entryfast
Ishigaki Island Marathon (Half)
Ishigaki, Japan
17 Jan 2027In 3 months
Gain
150 m
Start temp
20°C
Entry
$45
Top 10, men 40–49: No data
21.6 kmOpen entrycoastalscenic
Fuji Marathon Festa (Half)
Oyama, Japan
31 Jan 2027In 3 months
Gain
180 m
Start temp
5°C
Entry
$40
Top 10, men 40–49: No data
Half marathonOpen entryscenichilly
Osaka Half Marathon
Osaka, Japan
31 Jan 2027In 3 months
Gain
30 m
Start temp
8°C
Entry
$75
Top 10, men 40–49: No data
Half marathonOpen entryfastbig city
Kanagawa Marathon (Half)
Yokohama, Japan
7 Feb 2027In 3 months
Gain
20 m
Start temp
7°C
Entry
$45
Top 10, men 40–49: No data
Half marathonOpen entryfast
Kagawa Marugame International Half Marathon
Marugame, Japan
7 Feb 2027In 3 months
Gain
20 m
Start temp
6°C
Entry
$65
Top 10, men 40–49: No data
Half marathonOpen entryfast
KIX Senshu International Marathon (Half)
Kishiwada, Japan
14 Feb 2027In 4 months
Gain
30 m
Start temp
8°C
Entry
$60
Top 10, men 40–49: No data
Half marathonOpen entrycoastalfast
Inuyama Half Marathon
Inuyama, Japan
28 Feb 2027In 4 months
Gain
40 m
Start temp
7°C
Entry
$60
Top 10, men 40–49: No data
Half marathonOpen entryfastscenic
Soja Kibiji Marathon (Half)
Soja, Japan
28 Feb 2027In 4 months
Gain
60 m
Start temp
7°C
Entry
$50
Top 10, men 40–49: No data
Half marathonOpen entryhistoric
Miura International Marathon (Half)
Miura, Japan
7 Mar 2027In 4 months
Gain
150 m
Start temp
10°C
Entry
$60
Top 10, men 40–49: No data
Half marathonOpen entrycoastalscenic
UTMB
Hiroshima by UTMB 25K
Hiroshima, Japan
11 Apr 2027In 6 months
Gain
880 m
Start temp
12°C
Entry
$125
Top 10, men 40–49: No data
25 kmTrailOpen entryhilly
Tohoku Food Marathon (Half)
Tome, Japan
18 Apr 2027In 6 months
Gain
80 m
Start temp
13°C
Entry
$60
Top 10, men 40–49: No data
Half marathonOpen entryscenic
Gifu Seiryu Half Marathon
Gifu, Japan
25 Apr 2027In 6 months
Gain
40 m
Start temp
17°C
Entry
$50
Top 10, men 40–49: No data
Half marathonOpen entryfastscenic