Welcome to the F3 Naperville Foundation 5K Race & Walk to benefit Little Friends! Join F3 Naperville on Sunday, September 27th, 2026, for our 8th annual 5K, once again being held on the beautiful trails of St. James Park in Warrenville, IL.
- Course: F3 Naperville 5K Run & Walk for Little Friends, Distance: 5000 meters
- Course: F3 Naperville 5K Kids Race (0.4 mile course for ages 9 and below), Distance: 640 meters
The course is an undulating crushed limestone path weaving through prairie and woods. Join us for a fun, family-friendly atmosphere, including a Kona Ice truck for kids!