2027 Crystal Lake Half Marathon & 12K
Typically 60–76°F · some rain risk
See last 10 years
On this date: rain 1 of the last 10 years
2026
68–80°F
dry
2025
52–63°F
dry
2024
63–85°F
dry
2023
74–89°F
dry
2022
63–72°F
dry
2021
60–79°F
dry
2020
62–78°F
dry
2019
55–72°F
dry
2018
68–85°F
rain
2017
53–65°F
dry
Best months to race in Illinois →
About this race
WELCOME!
We are excited to present the 7th Annual Crystal Lake Half Marathon & 12K on Sunday, September 5, 2027.
Event Details
- Date: September 5, 2027
- Location: 300 Lakeshore Drive, Crystal Lake, IL
- Start Times: 7:30 a.m. - Half Marathon, 8:00 a.m. - 12K (7.44 miles)
- Course Highlights: Iconic Crystal Lake Main Beach, Lippold Park, Dole Mansion, Prairie Path, and downtown Crystal Lake
Race Experience
- Transportation: Buses will transport runners to the START, just a 5-minute ride
- Facilities: Indoor and beach-side warm-up areas are available
- Hydration: Water stations every 1.5 miles and fueled aid at select locations
- Post-Race: Enjoy a beverage ticket and food ticket at the Smith Running Academy After Party
Other Important Information
- Restrooms: Located at the start, Mile 5, Mile 11, and Finish Line
- First Aid: Available throughout the course
- Course Safety: Marked with turn arrows and course marshals
- Awards: Age group awards for top finishers at the After Party
Packet Pick-Up Information
All days/times are race week only (9/3-9/5).
Race Day Schedule
The Half Marathon Course is USATF Certified!
After Party Information
- Opening Time: Depot Park opens at 8:30 a.m. for spectators
- First Finishers: Expected around 9:00 a.m.
- Awards Ceremony: Approximately at 10:30 a.m.
- Food and Drink: Provided tickets attached to bibs for racers
Kids Run This Town
Do you have an elementary aged kiddo who loves to run? Here's their chance to run their own Half Marathon! This 4-week program challenges kids to run 12 miles over 4 weeks with a running buddy. On race day, they run their 13th mile and earn their Half Marathon finisher medal.
Sponsorship Opportunities
Interested in sponsoring the Crystal Lake Half Marathon? Contact Melissa at [email protected] or click HERE for more info.
Race URL
For more information, visit here.
Course map
Train with a club
Run clubs near Crystal Lake to train with before race day.
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