In 8 days · Sat, Oct 3, 2026
Don't let race day sneak up
One email during race week. That's it.
Saturday, October 3rd, 2026
343 Old McHenry Rd., Long Grove IL
Half · 10K · 5K
54–69°F · some rain risk
See last 10 years
On this date: rain 4 of the last 10 years
2025
61–86°F
dry
2024
53–74°F
dry
2023
61–82°F
dry
2022
45–66°F
dry
2021
65–74°F
rain
2020
42–55°F
rain
2019
52–64°F
rain
2018
58–83°F
dry
2017
66–75°F
rain
2016
58–66°F
dry
Best months to race in Illinois →
Race-day forecast · Saturday, Oct 3
Rain likely · 62–81°F
Saturday, Oct 3starts near 62°F · 28% chance of rain · wind up to 9 mph
About this race
Event Overview
Prairie State Half Marathon, 10K & Oktoberfest 5K - 10/3/2026
Long Grove, IL
Social Media
- Oktoberfest 5K: #Oktoberfest5K
- Oktoberfest 10K: #Oktoberfest10K
- Oktoberfest Half Marathon: #OktoberfestHalfMarathon
Event Details
- New Name: The Prairie State Half Marathon & 10K has been upgraded to Long Grove’s Oktoberfest Half Marathon, 10K & 5K!
- Date: 10/3/2026
- Location: 343 Old McHenry Rd., Long Grove, IL
- Event Information: Event times, dates, location, and all other details are subject to change prior to the event.
Official Website
All official information is on the event's website: AllCommunityEvents.com.
Race Sign-Up
For more details and registration: Sign Up Here.
Course map
Hotels for race weekend
Live prices near the start line, Oct 2 – 4, 2026.
Train with a club
Run clubs near Long Grove to train with before race day.
Suggested Races
Organize this race?
Claim it free to manage your listing — and get it featured for free, while spots last.