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
Belfast City Marathon
Best for
Newer marathonersQualifying pathway
Race B
Irish Life Dublin Marathon
Best for
First marathons
Race A
Belfast City Marathon
Belfast, United Kingdom
Race B
Irish Life Dublin Marathon
Dublin, Ireland
Date
Expected May 2027
Oct 25, 2026
Month
May
Oct
Location
🇬🇧 Belfast, United Kingdom
🇮🇪 Dublin, Ireland
Terrain
Road
Road
Elevation gain
175 m
▲
130 m
PB potential
Beginner friendly
▲
World Major
No
No
Entry type
Open
Lottery
Entry status
Check official site
Ballot closed
Season
Spring · Europe
Autumn · Europe
Race-day temp.
8–17°C
9–14°C
Conditions
Northern Irish May — mild and often breezy, possible showers
Variable Irish weather — can be mild or rainy
Humidity
60–75%
75–85%
Wind
10–25 km/h
10–25 km/h, unpredictable
Qualifies for
Boston Marathon
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Want to know how these scores are calculated? See methodology →