F3 Naperville 5K Run & Walk
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F3 Naperville 5K Run & Walk
The F3 Naperville 5K Run & Walk is scheduled for Sunday, September 27, 2026, at St. James Farm in Warrenville, Illinois. The main event uses a USATF certified 5K course on undulating crushed limestone trails that loop through prairie and woods and include views of horse barns.
Distances:
- 5K
- 0.4 mile kids course for ages 9 and under
One hundred percent of event proceeds will benefit a nonprofit charity to be announced. Registrations are tax-deductible and there is an option to make additional donations; sponsorship opportunities are listed for multiple levels. Registrations completed before August 22 are guaranteed a limited edition F3 5K t-shirt available in Men, Women, and Kid sizes. Kids race registrants receive a child-sized shirt and exchanges for adult sizes are not available. Children age 10 and older are expected to register for the 5K rather than the kids course.
Parking for the event is free at the special use entrance to St. James Farm, with the parking area adjacent to the start and finish. A Kona Ice truck will be on site and will provide a free crushed ice cup for each child. Shirts and bibs can be picked up before the event or the morning of the race; an early pickup is scheduled at the Naperville Running Store (south location) on September 20 from 10 am to 2 pm. Visit the organization's website for the most recent information.
