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
Grandma's Marathon
Best for
Well-rounded marathon experience
Race B
Boston Marathon
Best for
World Major bucket-list
Race A
Grandma's Marathon
Duluth, USA
Race B
Boston Marathon
Boston, USA
Date
Expected June 2027
Expected April 2027
Month
Jun
Apr
Location
🇺🇸 Duluth, USA
🇺🇸 Boston, USA
Terrain
Road
Road
Elevation gain
▲
165 m
247 m
PB potential
Beginner friendly
▲
World Major
No
✓ Yes
Entry type
Open
Qualifier
Entry status
Check official site
Check official site
Season
Summer · Americas
Spring · Americas
Race-day temp.
10–22°C
8–16°C
Conditions
Variable — can be ideal or uncomfortably warm
Variable — can be ideal or brutal
Humidity
60–75%
50–70%
Wind
10–25 km/h off the lake
Variable 10–25 km/h
Qualifies for
—
—
Want to know how these scores are calculated? See methodology →