Chicago 13.1
Chicago's Bank of America 13.1 showcases the city's best on a fast, net-downhill course.
Race Date
Jun 7, 2026
Location
Chicago, IL
Quick facts
- Date
- Sunday, June 7, 2026
- Location
- Chicago, Illinois
- Distance
- Half marathon (13.1 mi)
- Course
- Point to Point
- Terrain
- Road
- USATF certified
- Yes
- Finishers on record
- 26,196
Highlights
Good For
Atmosphere
Course
The Experience
The Bank of America Chicago 13.1 is a rapidly growing half marathon that has quickly become a favorite for runners seeking a fast course and a taste of the Windy City. With four editions on record and a median field size of around 7,340 finishers, this race offers a significant event experience.
The course is USATF certified and designed for speed, featuring a net drop and minimal start-finish separation, making it a prime candidate for personal bests. Runners can expect a well-supported race, with a growing field size that recently saw over 9,000 participants, drawing athletes from across the country.
With a repeat-runner loyalty rate of approximately 34%, the Chicago 13.1 has established itself as a race that keeps runners coming back. The event's popularity and its reputation as a fast, well-organized race make it a compelling destination for half marathoners.
Race-provided description
The Bank of America Chicago 13.1 offers a unique half marathon experience that showcases the best Chicago has to offer.
Course Info
USATF CertifiedCourse Type
Point to Point
Terrain
road
Scenery
Urban
Surface
Paved
Difficulty
Ultra-Flat
Net Drop/km
-0.05 m
Separation
1.5%
USATF Certified Course
IL24019NM · Bank of America Chicago 13.1
Relatively flat with minimal net elevation change. Loop course — start and finish are close together.
Quality Score
Standout644 years running
~7,340 finishers a year
growing or steady
34% returning runners
USATF certified
runners from 1 state
winner 1:01:08
typical high 75°F
Race Day Weather
5-year historical avgStart (Low)
59°
Afternoon (High)
75°
Warm — hydration strategy is key, start conservatively
0.1"
Precipitation
14 mph
Wind
70%
Humidity
Historical Finish Times
How 26,196 finishers actually crossed the line across 4 years.
Most recent
2025
Total finishers
26,196
Median time
2:10:25
Latest turnout
9,034
States
1
Turnout by year
2022–2025
Hover the histogram to inspect specific finish times.
Race Photos
Frequently asked
When is the Chicago 13.1?
The Chicago 13.1 is held on Sunday, June 7, 2026.
Where does the Chicago 13.1 take place?
It takes place in Chicago, Illinois.
What distances does the Chicago 13.1 offer?
The half marathon (13.1 miles).
Is the Chicago 13.1 course flat and good for a PR?
The Chicago 13.1 is a ultra-flat, point to point course. The course is USATF-certified, so finish times can be used for qualifying.
How many people run the Chicago 13.1?
HalfRuns has finish records for 26,196 runners who have completed the Chicago 13.1.
HalfRuns editorial — independent, no paid placement.
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