Thin Mint Sprint 2026

About the Event

Join us for the 22nd Annual Thin Mint Sprint!!

Get ready to lace up your running shoes because the Fox River Grove Memorial Library Running Club is back with an exhilarating in-person race! This year, we're bringing back the timed 5K fun run/walk along the stunning Fox River, as well as a 1-mile walk/run option. Mark your calendars for Saturday, September 12, and head to Lions Park for an epic day of racing and community celebration. And don't forget about the post-race party – it's going to be a blast! This is an event you won't want to miss, so join us for an unforgettable day of fitness, fun, and togetherness!

Join us in supporting GSNI's financial assistance programs. We're on a mission to ensure that every girl has the opportunity to experience the amazing world of Girl Scouts, no matter what challenges they face. From membership fees to uniforms, books, and even international adventures, we're dedicated to making the Girl Scout journey accessible to all.

Registration Details

Your registration fee covers everything you need for the Thin Mint Sprint: a T-shirt, a high-tech chipped timing bib, a shiny medal, a trendy patch, a whole box of official Girl Scout Thin Mint Cookies, and even more awesome race swag items. Get ready to run and enjoy all these fantastic goodies!

$40 Early-Bird Registration ~ March 31 - August 15, 2025, at 11:59 p.m.

$45 Regular Registration ~ August 16 – September 11, 2025, at 11:59 p.m.
$50 Race Day ~ September 12, 2024

14.1° / 23.2°

light_mode Avg sunshine hours

9h 52m

water_drop Avg rainfall

2.3 mm

ac_unit Avg snowfall

—

air Avg wind speed

10.1 km/h (Light breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Moderate (5.0)

humidity_mid Humidity

71.2%

wb_twilight Sunrise

06:33

nightlight Sunset

19:00

About Fox River Grove

Learn more about the host city, Fox River Grove.

Fox River Grove (FRG) is a village in Algonquin Township, McHenry County and Cuba Township, Lake County, Illinois, United States. As per 2020 census, the population was 4,702. In 1919, the village of Fox River Grove was officially incorporated, becoming the ninth village in McHenry County. The Grove is situated along the southern shore of the Fox River.