Road running

Firefly Race Series

📅 June 18, 2027 (estimated date)📍 Lisle · United States

⚠️ 2027 edition: provisional information

The date is estimated from the 2026 edition (June 19, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.

Available distances

1.9 mi

About

The Firefly Race Series features the Firefly 3K Fun Run (1.9 miles) at the Morton Arboretum in Lisle on June 18, 2027, at 8:00 p.m. The scenic course winds through the Arboretum's collections of trees and plants.

The route is accessible to runners, walkers and wheelchair users of every experience level. Participants can run at the Arboretum or complete the distance virtually elsewhere, logging their results online.

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Races nearby

Other upcoming races around Lisle.