Free tool
Compare marathons
Side-by-side comparison of elevation, PB potential, beginner friendliness, terrain, weather, and entry details. Pick two races and see how they stack up.
Race A
vs
Race B
Race A
Osaka Marathon
Best for
Strong PB attemptsFlat-course PBs
Race B
Dong-A Seoul Marathon
Best for
Strong PB attempts
Race A
Osaka Marathon
Osaka, Japan
Race B
Dong-A Seoul Marathon
Seoul, South Korea
Date
Expected February 2027
Expected March 2027
Month
Feb
Mar
Location
🇯🇵 Osaka, Japan
🇰🇷 Seoul, South Korea
Terrain
Road
Road
Elevation gain
▲
90 m
145 m
PB potential
Beginner friendly
World Major
No
No
Entry type
Lottery
Open
Entry status
Check official site
Check official site
Season
Winter · Asia
Spring · Asia
Race-day temp.
7–14°C
5–12°C
Conditions
Cool and partly cloudy — typical Japanese winter
Cool and often clear — ideal spring running
Humidity
55–65%
50–65%
Wind
10–20 km/h W
10–20 km/h NW
Qualifies for
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Want to know how these scores are calculated? See methodology →