Hidden Gem Half Marathon

Race Date

Sep 12, 2026

Location

Flossmoor, IL

Logistics

Race Day

Saturday, September 12, 2026

Start Time

TBA

Start Location

Flossmoor, IL

Directions

Course Info

USATF Certified

Course Type

Loop Course

Terrain

road

Difficulty

Ultra-Flat

Net Drop/km

-0.09 m

Separation

2.7%

USATF Certified Course

IL25024NM · Expires 2035 · The Hidden Gem Half Marathon

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

View USATF Course Map (PDF)

Historical Performance

Median Finish

1:55:53

8:51/mi

Winning Time

0:24:17

1:51/mi

Finishers (2025)

1,068

States Represented

24 / 50

Gender Split

51% Female49% Male

Finish Time Distribution

0:203:50

FASTER 25%

1:33:29

MEDIAN

1:55:53

SLOWER 25%

2:21:23

Average runner age: 44

See Full Results

Race Day Weather

5-year historical avg

Start (Low)

59°

Afternoon (High)

78°

Warm — hydration strategy is key, start conservatively

0.1"

Precipitation

10 mph

Wind

68%

Humidity

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