Naperville Half Marathon

USATF Certified

Sunday, October 18, 2026

Naperville, Illinois

USATFCourse

Course Information

USATF Certified Course

IL21011WR · Expires 2031

Net Drop

+0.18

m/km

Separation

1.1%

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, October 18, 2026

Course

Loop

Also Offers

10K5K run

Registration

Race Website

Official race information

Historical Weather

☀

Avg High

61°F

☽

Avg Low

44°F

☂

Precip

0.05 in

🍃

Wind

12.5 mph

66% humidity·Based on 5-year historical data

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Course Information

USATF Certified Course

IL21011WR · Expires 2031

Net Drop

+0.18

m/km

Separation

1.1%

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, October 18, 2026

Course

Loop

Also Offers

10K5K run

Registration

Race Website

Official race information