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
Oslo Marathon
Best for
Well-rounded marathon experience
Race B
Helsinki City Marathon
Best for
Newer marathoners
Race A
Oslo Marathon
Oslo, Norway
Race B
Helsinki City Marathon
Helsinki, Finland
Date
Expected September 2027
May 8, 2027
Month
Sep
May
Location
🇳🇴 Oslo, Norway
🇫🇮 Helsinki, Finland
Terrain
Road
Road
Elevation gain
195 m
▲
135 m
PB potential
Beginner friendly
▲
World Major
No
No
Entry type
Open
Open
Entry status
Check official site
Registration open
Season
Autumn · Europe
Spring · Europe
Race-day temp.
7–15°C
6–15°C
Conditions
Nordic September — fresh and often clear, crisp morning air
Nordic spring — cool and bright, long daylight
Humidity
60–75%
60–75%
Wind
10–20 km/h fjord breeze
10–20 km/h Baltic sea breeze
Qualifies for
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Want to know how these scores are calculated? See methodology →