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KEYS100 Ultramarathon race photo

KEYS100 Ultramarathon

The city you want to run becomes your next trip.

KEYS100 Ultramarathon race photo
KEYS100 Ultramarathon race photo
KEYS100 Ultramarathon race photo
KEYS100 Ultramarathon race photo
KEYS100 Ultramarathon race photo
Key West
US
Radomianin · CC BY-SA 4.0Radomianin · CC BY-SA 4.0Averette · CC BY 3.0Florida Keys--Public Libraries from Key West, Fla., USA · CC BY 2.0Bubba73 · CC BY-SA 3.0Planet Labs, Inc. · CC BY-SA 4.0
Race date in 217 days
May 15, 2027 Sat
City · Distance
Key West · 100M · 50M · 50km
Entry fee
$355Varies by event and entry period
Status
SoonTBD ~ Sat, May 15, 2027See how to enter ↗
Official website ↗D-day as of Oct 10, 2026
KEYS100 Ultramarathon race photo
Radomianin · CC BY-SA 4.0
KEYS100 Ultramarathon race photo
Radomianin · CC BY-SA 4.0
KEYS100 Ultramarathon race photo
Averette · CC BY 3.0
KEYS100 Ultramarathon race photo
Florida Keys--Public Libraries from Key West, Fla., USA · CC BY 2.0
KEYS100 Ultramarathon race photo
Bubba73 · CC BY-SA 3.0
KEYS100 Ultramarathon race photo
Planet Labs, Inc. · CC BY-SA 4.0
About the raceRunner storiesHow to enterCourseRace PrepTravel
Why you dream of this race

THE DREAM

About KEYS100 Ultramarathon — what makes it special

ABOUT THE RACE

A day you'll remember,
long past the finish line.

Now in its 19th edition, the race runs across the Florida Keys on May 15 and 16, 2027.

The road to your own record

Picture the course in advance
and find the pace that fits you.

When the city cheers

Streets lined with cheers, runners all around.
You'll be part of that scene.

The trip that follows the run

Take it slow with the finish still in you,
and meet the city all over again.

KEYS100 Ultramarathon runner reviews and race reports

Stories from runners who've been there.

From the joy of finishing to the tough moments — read what runners wrote themselves.

Race reports: 2
Laura WattsRan in 2022 · Finish time 29 hours 38 minutes
“I crossed the finish line 29 hours and 38 minutes after I set off from Key Largo Saturday morning!”

The writer endured the heat, humidity, blisters, and nausea, took a short break at mile 83, and reached the 100-mile finish in Key West.

Read the original on Run Ultra
Ian Thomas
“I could and should have done much better but I think I’ll be back to do it justice.”

Ian Thomas entered the Keys 100 at short notice and endured a tough race in the Florida Keys' heat and humidity. Grateful for his wife's and crew's support, he celebrated an age-group course record and hoped to return for a better run.

Read the original on UltraIan

We translated a short line from each public race report and summarized the experience. Finish times are as stated by the author, and past editions may differ from this year's weather and operations.

See it on video,
feel it through their stories.

Preview the course and read what runners who went before you wrote.

Keys100 ultramarathon

The Barbers

View on YouTube

This may be from a past edition. Check the organizer for this year's course and operations.

The way in that fits you

YOUR ENTRY

How to enter KEYS100 Ultramarathon — registration routes

How to reach the start line —
start with what fits you.

Here are the ways to enter and what each requires.
Check the organizer's page for whether entries are open.

100 Mile Individual Ultra

Entry cost $355

until Jan 9, 2027 · subject to change — verify officially

Organizer's page

50 Mile Individual Ultra

Entry cost $305

until Jan 9, 2027 · subject to change — verify officially

Organizer's page

50 Kilometer Individual Ultra

Entry cost $240

until Jan 9, 2027 · subject to change — verify officially

Organizer's page

100 Mile Team Relay

Entry cost $1,050

until Jan 9, 2027 · subject to change — verify officially

Organizer's page
About 50 Mile Team Relay

50 Mile Team Relay

Entry cost $540

until Jan 9, 2027 · subject to change — verify officially

Organizer's page
Official race websiteEntry options
From the start line to the finish

RACE WEEK

KEYS100 Ultramarathon course map and elevation

Your 100M

Know the course and time limit, and race day comes into focus.

Runners start · local timeFrom 05:30
not the start line

We have not confirmed the start line coordinates yet.

START

The 100-mile race starts at Key Largo Community Park

the finish is at Higgs Beach in Key West

Start · Google Maps
FINISH

Higgs Beach, Key West, FL

Finish · Google Maps
Show more

The race categories are 100 Mile Individual Ultra, 50 Mile Individual Ultra, 50 Kilometer Individual Ultra, 100 Mile Team Relay, and 50 Mile Team Relay.

The race starts at Higgs Beach, Key West, FL, at 5:30 a.m. local time.

Course is a point-to-point race with a different start and finish.

Typical race-season temperature: around 27°C (80°F)
Hot race — plan fluids and electrolytes
Format
Key Largo → Key West 100-mile point-to-point

Participant benefits

Not yet confirmed in the official race guide

Where and when to collect your KEYS100 Ultramarathon race bib

To the start line,
step by step.

Pick up your bib, check your wave.
So on race morning, you can just run.

Pick up your bib at the expo

Holiday Inn Key Largo on the Friday before the race; Garden Club parking lot on race morning
Holiday Inn Key Largo on the Friday before the race; Garden Club parking lot on race morning

Stations & transport near the venue

  • Getting to the startNo train or scheduled bus station near Key Largo Community Park, the 100-mile start.
  • Getting to the finishNo train · bus station directly at Higgs Beach, Key West. Key West International Airport (EYW) is about 3 miles away; the Key West Historic Seaport

Source · checked Aug 23, 2026

More details

Getting to the start

No train or scheduled bus station near Key Largo Community Park, the 100-mile start. The Florida Keys have no passenger rail; nearest airports are Miami/Fort Lauderdale (roughly 1-1.5 hours by car).

This is a point-to-point 100-mile race (with 50-mile start at Marathon Garden Club and 50K start at Big Pine Key) along the Overseas Highway (US-1); every runner is required to have their own support crew vehicle, as there's no public transit or organizer runner-transport along the route.

Map

Getting to the finish

No train/bus station directly at Higgs Beach, Key West. Key West International Airport (EYW) is about 3 miles away; the Key West Historic Seaport/Old Town area (served by Greyhound/regional bus lines) is a few miles from Higgs Beach.

Higgs Beach is walkable from central/Old Town Key West lodging.

Map
Source · checked Aug 23, 2026
READY TO RUN

From race morning to after the finish.

Your start time, fuel and bag drop.
Know them ahead and the run feels easier.

Keys100 is a point-to-point, 100-mile ultramarathon starting in Key Largo and finishing at Higgs Beach in Key West.

Its defining feature is that there are no official aid or support stations along the course.

Every individual participant must therefore have their own support crew.

A crew may include pacers and drivers and is limited to four people.

Throughout the race, the crew moves between designated locations to provide runners with hydration and nutrition, clothing changes and first aid.

Bib and race-material pickup takes place at the Friday check-in event at the Holiday Inn in Key Largo.

The event also includes an orientation and an expert panel discussion.

Recently, separate race-morning material pickup has also been made available at the Garden Club parking lot.

Based on the previous year's policy,

full refunds were available through mid-November and 50% refunds through mid-March of the following year, with no refunds after that.

Times are local to Key West. Check the latest official information before the race.

A trip built around the race

STAY A LITTLE

MAKE IT A RUNTRIP

The race is one day,
the trip can be longer.

From a hotel that makes race morning easy,
to the meals and views you'll enjoy with the medal on.

Key West car rental (EconomyBookings)

Compare rates from various rental car companies, self-drive (price confirmed at time of reservation) · Make reservation after checking price

View on EconomyBookings

Key West Airport–City Centre Private Taxi

Fixed-rate advance booking, door-to-door pickup · Check price and book

View on Kiwitaxi

Key West Car Rental (Qeeq)

Compare budget-friendly rental cars with a free-cancellation option (check the price when booking) · Check price and book

View on Qeeq

Hotels near the KEYS100 Ultramarathon start line in Key West

Hotels that make race morning easy

View all →

Distances are straight-line from the start/finish area.
Check real travel times and booking terms with each hotel.

The start and finish are in the same place
We picked stays around that one spot.

Swipe sideways to see more hotels.

Trip.comClosest to the start lineView on Trip.com

Time for you, before and after the finish

View all →

Rest a little, wander a little.
Pick what suits you and whoever you're with.

Key West car rental (EconomyBookings)

Compare rates from various rental car companies, self-drive (price confirmed at time of reservation) · Make reservation after checking price

View on EconomyBookings

Key West Airport–City Centre Private Taxi

Fixed-rate advance booking, door-to-door pickup · Check price and book

View on Kiwitaxi

Key West Car Rental (Qeeq)

Compare budget-friendly rental cars with a free-cancellation option (check the price when booking) · Check price and book

View on Qeeq
Eating well is part of the tripA meal before the race, a dinner to celebrate the finish.View on mapSeeing Key West with the medal onThe city you ran — this time, a little slower.View on map

Hotel distances are straight-line from the start. Experiences, food and sights are travel products in Key West.

Total cost and budget for KEYS100 Ultramarathon

TRAVEL ESSENTIALS

Trip prep too,
light and in one place.

ChecklistLocal eSIM · Trip.comFlight delay or cancellation compensation · AirHelpPace calculator

Once saved, you can open this page without an internet connection

Runner stories and questions about KEYS100 Ultramarathon

RUN TOGETHER

With runners who dream of
the same start line.

Be the first runner
Leave this room's first post

Key West runners' room

Frequently asked questions about KEYS100 Ultramarathon

FAQ
When does KEYS100 Ultramarathon 2027 take place?

It takes place on Sat, May 15, 2027 in Key West, FL, United States.

How much is the KEYS100 Ultramarathon 2027 entry fee?

The main event costs $355.

What distances does KEYS100 Ultramarathon 2027 offer?

Ultra.

What time does KEYS100 Ultramarathon 2027 start?

The race starts at 05:30.

Where does KEYS100 Ultramarathon 2027 start?

The 100-mile race starts at Key Largo Community Park.

Where does KEYS100 Ultramarathon 2027 finish?

Higgs Beach, Key West, FL.

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