The Race Radar

KEYS100 Ultramarathon

Key West, Florida
Saturday, May 16, 2026
100 Miles

Organizer's Description

Registration is open for the 18th Annual race across the islands of the Florida Keys--May 16-17, 2026.  This chain of unique and inter-connected islands--some inhabited, some not--end in the City of Key West, just 90 miles from Cuba. This is a pavement race, with approximately 75% run on paved bike paths or sidewalks and the balance on the road shoulder facing traffic.  The Florida Keys, known locally as "The Conch Republic", is a spectacular and laid-back sub-tropical paradise, surrounded by the turquoise waters of the Atlantic Ocean and Florida Bay/Gulf of Mexico. The Keys feature great fishing, kayaking, snorkeling and diving, hotels, resorts, B&B's and cuisine and cocktails to fit every budget. There is entertainment to fit every taste, important history and a unique culture, sunsets that will keep you spellbound, special events going on throughout the year including KEYS100, of course, and you don't need a passport to visit here! So, what are you waiting for? We've saved a space for you!

Race Events

100 Mile Team Relay

Distance: 100 Miles
Start Time: 5:00:00 AM

100 Mile Individual Ultra

Distance: 100 Miles
Start Time: 5:30:00 AM

50 Mile Individual Ultra

Distance: 50 Miles
Start Time: 9:00:00 AM

50 Mile Team Relay

Distance: 50 Miles
Start Time: 9:00:00 AM

50 Kilometer Individual Ultra

Distance: 50K
Start Time: 12:00:00 PM

Race Information

KEYS100 Ultramarathon logo

Date

Saturday, May 16, 2026

End Date

May 17, 2026

Location

Key West, Florida

Higgs Beach

33340

Location Map

📍 KEYS100 Ultramarathon - Key West, Florida

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