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Firefly Race Series

Friday, May 3 & Saturday, May 4 Lisle, IL 60532 US

Virtual Participation

Runners can participate in the Firefly Race Series virtually by completing the race distances at locations and on dates of their choosing. Both the 3K and 10K courses at the Arboretum are open to virtual participants from Friday, April 26 through Friday, May 3. Virtual runners will receive free admission to the Arboretum during this period to complete their distances. Virtual participants will record their times via the Arboretum’s RunSignUp platform. Virtual participants will not be eligible for awards.

Registration for virtual races ends Tuesday, April 23, at 11:59 p.m. All virtual participants will receive their race packets and apparel via mail, free of charge.

Firefly 3K and 10K Challenge

Register for just one event, or bundle the virtual Firefly 3K and 10K to save on registration—and compete in our first-ever endurance series!
Take on the Firefly Challenge to enjoy the following benefits:

  • $10 registration discount
  • Series finisher sticker

Please note that the Firefly Challenge only applies to registration for both on-site races or both virtual races. This discount is only available through Tuesday, April 23.

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