Fri, October 9 – Mon, October 12
12:00 PM – 2:00 PM · 74h
PUMA's NITRO Lab takes over Tribune Tower on Michigan Avenue for marathon weekend. The centerpiece is the daily 1K Energy Race on a treadmill, where a kilometer under four minutes unlocks rewards, a place on the live leaderboard and a chance to win a pair of Fast-R NITRO Elite 3. Visitors can make custom posters and tees, grab something from the candy bar, get a custom tattoo and fuel up with Nitro Cold Brew from Metric Coffee. Naperville Running Company runs a retail pop-up inside, and the Lab hosts athlete appearances, a live DJ and giveaways across the weekend.
Opening hours:
Type
Marathon
Chicago Marathon 2026Duration
74 hours