Distance
Start Time
Cutoff
Terrain
OUTLAST Chicago is a six hour trail endurance challenge held in Palatine, Illinois. Runners set off on a 5 km loop at the top of every hour and must be back before the next one begins, with the leftover minutes used to rest and refuel. Miss a lap and the day is over; complete all six rounds and the runner OUTLASTs. The event runs across a Saturday and a Sunday edition, with the Sunday challenge starting at 08:00 and capped at 500 runners.
Six 5K laps, each starting on the hour
Rest and refuel between rounds
Elimination format that rewards consistency
Start / Finish
Not published beyond the town of Palatine, Illinois
Same loop venue as the start; lap finish each hour
Terrain
Route
Race Day
What to bring
Trail shoes
Hydration system (cupless event — bring your own bottle or hydration system)
Layers (weather dependent)
Fuel between laps
What you get
On the day
Other questions
Everyone starts a 5 km lap at the top of the hour. You must be back before the next hour begins to stay in the event. Finish early and the remaining minutes are yours to rest, eat and recover. Miss a lap and you are out. Complete all six rounds and you have OUTLASTed the challenge.
It is a solo challenge. ITRA lists the participation type for this race as solo, so each runner takes on their own six laps.
You are eliminated from the event. The format is built on the hour, and a late lap means the runner does not continue to the next round.
OUTLAST Chicago runs a Saturday challenge and a Sunday challenge as separate races. Whether you can move your entry between them is down to the organiser, so ask through the RunSignup contact page as early as possible.
Yes. Because the course is a short loop that repeats every hour, spectators can settle in one spot and see their runner start and finish each round without moving around.
Entry fee
Registration isn't open yet. We'll show pricing when the organiser confirms.Palatine, USA
Expected October 2027
Provisional date, around Oct 23Are you the organiser of OUTLAST CHICAGO 2027 - 6 Hour Challenge (Sunday) - 6 Hour Challenge (six 5K laps)?
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