Race Discovery
KEYS100 Ultramarathon
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2024 - KEYS100 Ultramarathon

Key West, Florida, United States View on map
May 18, 2024 (America/New_York local time)
Running

2024 distances

Running

100 Mile Individual Ultra

Point-to-point running race from the Divers Direct shopping center in Key Largo to Key West along the "Florida Keys Overseas Heritage Trail"--Overseas Highway (US #1). 100-milers have 32 hours from the time their wave crosses the start line to complete the race. Each runner MUST have a support crew, but may share a crew with up to two additional runners. There will be no traditional aid station support along the route. KEYS100 is sanctioned by USA Track & Field.

May 18, 2024 Ultra 5:30 AM
$350.00
Closed

50 Mile Individual Ultra

The 50-mile race is a point-to-point running race from the Marathon Garden Club in Marathon to Key West along the "Florida Keys Overseas Heritage Trail"--Overseas Highway (US #1). 50-milers have 20 hours to complete the race from the time their wave crosses the start line. Each runner MUST have a support crew, but may share a crew with up to two additional runners. There will be no traditional aid station support along the route. KEYS100 is sanctioned by USA Track & Field.

May 18, 2024 Ultra 9:00 AM
$295.00
Closed

50 Kilometer Individual Ultra

The 50-kilometer race is a point-to-point running race from the Lower Keys Chamber of Commerce property in Big Pine Key to Key West along the "Florida Keys Overseas Heritage Trail"--Overseas Highway (US #1). 50-K runners have 12 hours to complete the course from the time their wave crosses the start line. Each runner MUST have a support crew, but may share a crew with up to two additional runners. There will be no traditional aid station support along the route. KEYS100 is sanctioned by USA Track & Field.

May 18, 2024 Ultra 12:00 PM
$250.00
Closed

100 Mile Team Relay

Point-to-point running race from the Divers Direct shopping center in Key Largo to Key West along the "Florida Keys Overseas Heritage Trail"--Overseas Highway (US #1). 100-mile teams have 32 hours to complete the race from the time their first runner crosses the start line. Teams of up to six runners decide their own strategy: runners do not have to run the same number of miles or "legs", nor run in order. Teams are self-sufficient, carrying their own food, water, ice, etc. KEYS100 is sanctioned by USA Track & Field.

May 18, 2024 Ultra 5:30 AM
$990.00
Closed

50 Mile Team Relay

Point-to-point running race from the Marathon Garden Club in Marathon to Key West along the "Florida Keys Overseas Heritage Trail"--Overseas Highway (US #1). 50-mile teams have 20 hours to complete the race from the time their first runner crosses the start line. Teams of up to three runners decide their own strategy: runners do not have to run the same number of miles or "legs", nor run in order. Teams are self-sufficient, carrying their own food, water, ice, etc. KEYS100 is sanctioned by USA Track & Field.

May 18, 2024 Ultra 9:00 AM
$510.00
Closed

Race-day weather

Conditions on May 18, 2024 — historical Open-Meteo data.

Temp (°C)
Minimum temperature (recorded on race day) 27.5° / Maximum temperature (recorded on race day) 29.8°
Feels Like (°C)
Minimum feels like — heat index / wind chill (recorded on race day) 31.0° / Maximum feels like — heat index / wind chill (recorded on race day) 37.3°
Peak wind (km/h)
Strongest wind of the day (recorded on race day)
31.3
Precip (mm)
Precipitation over the day (recorded on race day)
0.0mm
Humidity
Mean relative humidity (recorded on race day)
81.0%
Sunrise
Sunrise at the start line on May 18, 2024 (EDT)
Sunset
Sunset at the start line on May 18, 2024 (EDT)
Daylight
Hours between sunrise and sunset on race day
13h 23m

The sun rises at 6:41 AM and sets at 8:05 PM local time (EDT) in Key West on May 18, 2024 — 13h 23m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

Reviews

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2024 results — KEYS100 Ultramarathon

232 finishers across 4 distances · leading places in the 100 Mile Individual Ultra

View all results
Leading finishers of the 2024 KEYS100 Ultramarathon
Place Name Time Pace
1 Rafael Cuza Villarreal 20:44:40 12:27 /mi
2 Matt Clapper 22:23:48 13:26 /mi
3 Odara Sousa Sa 22:33:38 13:32 /mi
4 Gregg Jerez 22:33:58 13:32 /mi
5 Stephanie Melkonian 23:12:39 13:56 /mi

Every finisher is on the results page, filterable by distance, gender and age group.

Other races near Key West

Different organizers, within 40 miles, in the next three months

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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 26 Key West events

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