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
Helsinki City Marathon
Best for
Newer marathoners
Race B
Copenhagen Marathon
Best for
Strong PB attemptsFirst marathonsFlat-course PBs
Race A
Helsinki City Marathon
Helsinki, Finland
Race B
Copenhagen Marathon
Copenhagen, Denmark
Date
May 8, 2027
Expected May 2027
Month
May
May
Location
🇫🇮 Helsinki, Finland
🇩🇰 Copenhagen, Denmark
Terrain
Road
Road
Elevation gain
135 m
▲
10 m
PB potential
▲
Beginner friendly
▲
World Major
No
No
Entry type
Open
Open
Entry status
Registration open
Check official site
Season
Spring · Europe
Spring · Europe
Race-day temp.
6–15°C
12–18°C
Conditions
Nordic spring — cool and bright, long daylight
Mild and partly cloudy, comfortable for all paces
Humidity
60–75%
55–70%
Wind
10–20 km/h Baltic sea breeze
10–20 km/h variable
Qualifies for
—
Boston Marathon
Want to know how these scores are calculated? See methodology →