- Weather
- 46°Ftypical start
- Field size
- ~400 runners
- Course
- Flat
- Elevation
- 200 ft gain · 0 ft net
Event: Athens Marathon
PR9.2Weather9.2Experience6.0
All marathons
Early October · Midwest · Loop
Chicago Marathon
Chicago, IL
World Marathon Major; world-record fast
- Best for PR
- Boston Qualifier
- First Marathon
- Bucket List
- Big Race Experience
Opens the race organizer's website
- Typical start temp
- 47°F(estimated)
- Field size
- ~45,000-50,000 runners(estimated)
- Course
- Flat
- Elevation
- 250 ft gain(estimated)
Why runners choose this race
A loop course around Chicago, IL, with very little meaningful elevation change.
Good fit if
- · PR attempts
- · Boston qualification
- · First-time marathoners
- · Big-race atmosphere
Think twice if
- · You dislike crowded starts and corrals
Course and logistics
- Course type
- Loop
- Surface
- Road
- Total gain
- 250 ft(estimated)
- Field size
- ~45,000-50,000 runners(estimated)
- Crowd support
- Wall-to-wall crowds
- Entry
- Data coming soon
- Start / finish
- Start and finish in the same area
Race details
- Typical timing
- Early October
- Region
- Midwest
- Editorial tier
- Featured
- Data last reviewed
- 2026-08-26
World Marathon Major; world-record fast
Good to know
- Best for PR
- Boston Qualifier
- First Marathon
- Bucket List
- Big Race Experience
- World Marathon Major
- Loop course
- Flat course
- Destination race
Race-day weather
Modelled from location, month and coastal proximity — not verified race history.
ExcellentGoodWarmHeat risk
Typical start sits at 47°F — excellent marathon conditions.
Similar races
- Weather
- 44°Ftypical start
- Field size
- ~1,800 runners
- Course
- Flat
- Elevation
- 180 ft gain · 0 ft net
Event: Carmel Marathon
PR9.4Weather9.0Experience7.3
- Weather
- 52°Ftypical start
- Field size
- ~300 runners
- Course
- Flat
- Elevation
- 150 ft gain · 0 ft net
Event listed as: Marathon
PR9.0Weather8.6Experience6.0