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Miami Backyard Ultra
Key Biscayne, Florida · Saturday, December 19, 2026 · Timed
Official race page & registration ↗Miami Backyard Ultra takes place on Saturday, December 19, 2026 in Key Biscayne, Florida. The race is run over Timed. For anyone travelling in, Miami is about 6 miles away.
It is one of 221 races on the Florida calendar that December. At $249, entry sits above the $35 median for a Florida ultra.
- Date
- Saturday, December 19, 2026
- Location
- Key Biscayne, Florida
- Distances
- Timed
- Entry fee
- from $249
Listing from the 2026 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 Biscayne: check in Dec 18, out Dec 20.
Common questions
When is Miami Backyard Ultra?
Miami Backyard Ultra is scheduled for Saturday, December 19, 2026.
Where is Miami Backyard Ultra held?
Miami Backyard Ultra is held in Key Biscayne, Florida. It is about 6 miles from Miami.
What distances does Miami Backyard Ultra offer?
The listed distances are Timed.
How much does Miami Backyard Ultra cost?
Entry is listed from $249. Check the official race page for the current price, which usually rises closer to race day.
How do I register for Miami Backyard Ultra?
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
- Dec 19Jingle Bell Jog Key BiscayneKey Biscayne, FL
- Dec 194th Annual Ugly Sweater 5KDavie, FL
- Dec 19AdventHealth Santa's Twilight 5K - Downtown ClermontClermont, FL
- Dec 19Ancient Oaks 100-Mile Endurance RunTitusville, FL
- Dec 19Aspirations Christmas Wine Run 5kClearwater, FL
See every race on the Florida calendar, all Key Biscayne races, Florida Ultras, or use the Race Finder for maps and filters.