Great Western Half Marathon and 10K

USATF Certified

Sunday, May 3, 2026

Saint Charles, Illinois

USATFCourse

Course Information

USATF Certified Course

IL23005WR · Expires 2033

Certified Course Name

Great Western HM

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, May 3, 2026

Course

Loop

Also Offers

10K run

Registration

Race Website

Official race information

Historical Weather

☀

Avg High

64°F

☽

Avg Low

45°F

☂

Precip

0.14 in

🍃

Wind

13.4 mph

70% humidity·Based on 5-year historical data

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Course Information

USATF Certified Course

IL23005WR · Expires 2033

Certified Course Name

Great Western HM

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, May 3, 2026

Course

Loop

Also Offers

10K run

Registration

Race Website

Official race information