The Champion of Trees 10K

Embark on a two-day running adventure with the new Firefly Series at The Morton Arboretum. The new Firefly Race Series features both a 3K and a 10K course through rolling terrain along the Arboretum’s East Side.

Day one kicks off with the Firefly 3K run and walk at 7:30 p.m. on Friday, May 3, offering a unique after-hours experience at the Arboretum with stunning sunset views and a fun post-race party featuring glow lights and a DJ. Gear up for day two beginning at 8:00 a.m. on Saturday, May 4, with the invigorating Firefly 10K through the scenic landscapes of the Arboretum’s East Side, following the annual Champion of Trees 10K route.

Runners may participate in the race series virtually by running one or both race distances at a location of their choosing. Virtual participants will have access to the 3K and 10K courses at the Arboretum from Friday, April 26, to Friday, May 3. No matter when or where you run, you will be supporting the Arboretum's vision of a greener, healthier, more beautiful world where people and trees thrive together.

Participate in just one race, or register for both the Firefly 3K and 10K runs by Tuesday, April 23, to take on a combined challenge and receive a $15 registration discount for on-site races and a $10 registration discount for virtual races. Please note that the Firefly Challenge only applies to registration for both on-site races or both virtual races. Availability is limited, so register early to reserve your spot today.

Firefly Race Series
Firefly 3K: $50 member, $55 guest
Firefly 10K: $60 member, $65 guest
Firefly 3K and 10K Challenge: $100 member, $105 guest ($15 discount)

Virtual Participation
Firefly 3K: $40 member, $45 guest
Firefly 10K: $50 member, $55 guest
Firefly 3K and 10K Challenge: $85 member, $90 ($10 discount)