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
Bank of America Chicago Marathon
Best for
Elite PB chasingNewer marathonersWorld Major bucket-list
Race A
Grandma's Marathon
Duluth, USA
Race B
Bank of America Chicago Marathon
Chicago, USA
Date
Expected June 2027
Expected October 2027
Month
Jun
Oct
Location
🇺🇸 Duluth, USA
🇺🇸 Chicago, USA
Terrain
Road
Road
Elevation gain
165 m
▲
30 m
PB potential
▲
Beginner friendly
▲
World Major
No
✓ Yes
Entry type
Open
Lottery
Entry status
Check official site
Check official site
Season
Summer · Americas
Autumn · Americas
Race-day temp.
10–22°C
10–18°C
Conditions
Variable — can be ideal or uncomfortably warm
Clear to partly cloudy, cool mornings
Humidity
60–75%
50–65%
Wind
10–25 km/h off the lake
10–20 km/h variable
Qualifies for
—
Boston Marathon
Want to know how these scores are calculated? See methodology →