RunRace USA › Florida › Key West › KEYS100 Ultramarathon

KEYS100 Ultramarathon

Key West, Florida · Saturday, May 15, 2027 · 100 Mile, 50 Mile, 50K

Official race page & registration ↗

KEYS100 Ultramarathon takes place on Saturday, May 15, 2027 in Key West, Florida. The race offers 3 distances: 100 Mile, 50 Mile, 50K.

It is one of 80 races on the Florida calendar that May.

Date
Saturday, May 15, 2027
Location
Key West, Florida
Distances
100 Mile, 50 Mile, 50K
Entry fee
from $240 across event options; may include kids or shorter events. Check distance-specific prices and fees.

Listing from the 2027 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.

Making a race weekend of it?

Stay near the start line in Key West: check in May 14, out May 16.

Hotels on Booking.com ↗ Hotels on Expedia ↗

Common questions

When is KEYS100 Ultramarathon?

KEYS100 Ultramarathon is scheduled for Saturday, May 15, 2027.

Where is KEYS100 Ultramarathon held?

KEYS100 Ultramarathon is held in Key West, Florida.

What distances does KEYS100 Ultramarathon offer?

The listed distances are 100 Mile, 50 Mile, 50K.

How much does KEYS100 Ultramarathon cost?

Listed event options start from $240. This minimum may be for a kids or shorter event. Check the official race page for your distance's current price and any additional fees.

How do I register for KEYS100 Ultramarathon?

Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.

More races nearby

Within about 60 miles, ordered by approximate straight-line distance between listed locations.

See every race on the Florida calendar, all Key West races, Florida Ultras, or use the Race Finder for maps and filters.