KEYS100 Ultramarathon
KEYS100 Ultramarathon is listed for May 15, 2027 in Key West, Florida, United States. Listed distances: 50 Miler, Relay. Check registration status, official links, and the runner planning notes below, then confirm final details with the organizer.
About this race
Source-verified marathon-family event. Official or registration source: http://keys100.com. MarathonGuide discovery page: https://www.marathonguide.com/races/run/keys100-ultramarathon-4/details/. Verified evidence: discovery evidence: May 15, 2027 Saturday | 50 Mile Individual Ultra 50 mile 50 mile Adults Point to point Run/Walk May 15, 2027 Saturday | 50 Kilometer Individual Ultra Ultra Ultra Adults Point to point Run/Walk May 15, 2027 Saturday | 100 Mile Team Relay Ultra Ultra Adu...
Is this race a fit?
These notes are generated from listed Sunday Marathon race facts. They are meant for shortlisting and planning, not as a replacement for official organizer instructions.
- Date And Schedule
KEYS100 Ultramarathon is currently listed for May 15, 2027, which makes the May planning window important for training and travel. Recheck official timing before race week.
- Location Base
Plan around Key West, Florida, United States, then verify the exact start area, finish area, packet pickup, and post-race exit route before booking non-refundable travel.
- Course Fit
Listed course signals include road surface. Use them to compare effort, pacing risk, and training fit before relying on the race for a specific goal.
- Entry Readiness
A registration path is listed; review entry rules, refund terms, and transfer policies before paying.
Key facts
- Date
- May 15, 2027
- Location
- Key West, Florida, United States
- Start area
- Key West, FL, United States — confirm the exact start with the organizer
- Events
- 50 Miler, Relay
- Surface
- Road
- Official source
- Registration page & official site
- Listing status
- Verified · updated May 24, 2026
Before you register
- 1Confirm the race-day schedule
Verify the May 15, 2027 start times, packet pickup (collecting your race bib) and corral (your assigned start group) instructions on the official source before booking travel.
- 2Pin the exact start area
Use Florida as the planning region, then confirm the precise start, finish, parking and transport with the organizer.
- 3Pick your distance
Listed options are 50 Miler, Relay. Check the source for current per-distance availability and limits.
- 4Review entry terms
Read entry rules, refund terms, participant limits and transfer rules before you pay.
Previous editions
Earlier runnings of KEYS100 Ultramarathon — kept for results and reference.
Runner reviews
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