Naperville Half Marathon
Race Date
Oct 18, 2026
Location
Naperville, IL
Course Info
USATF CertifiedCourse Type
Loop Course
Terrain
road
Difficulty
Ultra-Flat
Net Drop/km
+0.18 m
Separation
1.1%
Also Offers
USATF Certified Course
IL21011WR · Expires 2031
Relatively flat with minimal net elevation change. Loop course — start and finish are close together.
Historical Performance
Median Finish
2:06:07
9:38/mi
Winning Time
0:37:07
2:50/mi
Finishers (2025)
1,096
States Represented
19 / 50
Gender Split
Finish Time Distribution
FASTER 25%
1:50:59
MEDIAN
2:06:07
SLOWER 25%
2:22:46
Race Day Weather
5-year historical avgStart (Low)
44°
Afternoon (High)
61°
Pleasant conditions — light layers at start, comfortable by finish
0.1"
Precipitation
13 mph
Wind
66%
Humidity
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