Fox Valley Marathon Races

USATF Certified

Sunday, September 20, 2026

Saint Charles, Illinois

USATFCourse

Course Information

USATF Certified Course

IL25040NM · Expires 2035

Certified Course Name

2025 Fox Valley Half Marathon

Net Drop

0.00

m/km

Separation

0.0%

start to finish

This course is relatively flat with minimal net elevation change. Loop course — start and finish are close together.

View USATF Course Map (PDF)

Race Details

Race Day

Sunday, September 20, 2026

Course

Loop

Also Offers

26.2M20M5K run

Registration

Race Website

Official race information

Historical Weather

☀

Avg High

77°F

☽

Avg Low

60°F

☂

Precip

0.18 in

🍃

Wind

10.5 mph

71% humidity·Based on 5-year historical data

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Course Information

USATF Certified Course

IL25040NM · Expires 2035

Certified Course Name

2025 Fox Valley Half Marathon

Net Drop

0.00

m/km

Separation

0.0%

start to finish

This course is relatively flat with minimal net elevation change. Loop course — start and finish are close together.

View USATF Course Map (PDF)

Race Details

Race Day

Sunday, September 20, 2026

Course

Loop

Also Offers

26.2M20M5K run

Registration

Race Website

Official race information