The Best Endurance Races in Miami (2026 Guide)

Miami is one of the most electrifying cities in America for endurance sports. With year-round warm weather, a stunning coastline, and a race calendar that peaks when the rest of the country is buried in snow, the Magic City has become a winter racing destination for athletes nationwide. Whether you are chasing a fast marathon PR on a flat coastal course, testing yourself in the open waters of Biscayne Bay, or grinding through a fitness race, Miami delivers a race experience unlike anywhere else in the US.

This guide covers the best endurance races in Miami for 2026 and beyond, organized by discipline, with dates, course details, and links to register. If it is worth racing in Miami, it is on this list.

Best Marathons and Half Marathons in Miami

Life Time Miami Marathon and Half

Date: January 31, 2027 | Distance: 26.2 / 13.1 miles

The Life Time Miami Marathon is South Florida's flagship distance running event, attracting 15,000+ runners from around the world each January. The course runs along the stunning Miami coastline from the American Airlines Arena through Coconut Grove, past the Biltmore Hotel in Coral Gables, and along the turquoise waters of Biscayne Bay. The flat terrain makes it a legitimate Boston qualifier course, and the January timing means you are racing in 65-75 degree weather while your friends up north are shoveling snow. The half marathon shares the first half of the course and is one of the most popular 13.1s in the Southeast.

Community Road Races

Miami's road running scene extends well beyond the marathon. The Go Run Anniversary 5K and Go Run 4th of July 5K are popular community races through Miami's neighborhoods. The Great Sports Foundation 5K and CLEO Institute Earth Day 5K combine racing with charitable causes. For something more unique, the Move for Hope series offers monthly themed virtual and in-person races at the 5K, 10K, and half marathon distances.

Best Open Water Swimming Events in Miami

Swim Miami 2026

Date: April 12, 2026 | Distances: 800M, Mile, 5K, 10K, K9 Krawl

Swim Miami is South Florida's premier open water swimming event, held at the historic Miami Marine Stadium on Virginia Key. Athletes of all levels compete in protected open water with safety kayaks on course, making it accessible for first-timers while still challenging for experienced swimmers. The 10K distance draws serious marathon swimmers, while the 800M Corporate Swim is perfect for beginners. The K9 Krawl Championships, where you swim with your dog, might be the most Miami thing imaginable.

Mermaid Open Water Swim at Oleta

Date: May 31, 2026 | Location: North Miami Beach

An intimate open water swim at Oleta River State Park, perfect for swimmers looking for a community-driven event in a beautiful mangrove setting.

Best Fitness and Obstacle Course Races in Miami

Miami's fitness racing scene is growing fast. Check all OCR events on RACE for the latest Miami-area obstacle and fitness races.

Best 5Ks and Fun Runs in Miami

Miami's 5K scene is vibrant and diverse, reflecting the city's multicultural character:

14th Annual 5K Run and Walk for Kids Growth - May 16. A charity 5K supporting pediatric health.
Pelican Run 5K - May 2, Miami Beach. A beachside 5K with ocean views.
Sofia's Hope Reason to Run 5K - October 31. A Halloween-themed charity race.
Kennedy Kids Foundation 5K - September 13, Miami Shores.
Average Joe Run 5K Miami - October 4. An inclusive 5K celebrating everyday runners.

Best Cycling Events in Miami

Miami's flat terrain and scenic causeways make it ideal for cycling. While the city does not yet host a major gran fondo, South Florida offers road rides along the Keys, through the Everglades, and along A1A. Browse cycling events on RACE for the latest.

When to Race in Miami

Miami's race season is the inverse of most US cities. The peak months are November through March, when temperatures drop to a comfortable 65-80 degrees and humidity is at its lowest. This is when the Life Time Miami Marathon, most charity 5Ks, and major fitness events are scheduled. Summer (June-September) is extremely hot and humid, with temperatures regularly hitting 90+ degrees. Most race directors avoid this window. April and May offer a sweet spot, which is when Swim Miami and several community races take place. If you are traveling to Miami specifically to race, January and February are your best bet.

Training and Local Running Culture

The Rickenbacker Causeway is the go-to long run route, offering a bridge crossing to Key Biscayne with stunning bay views. Bayfront Park and the Miami Beach Boardwalk are popular for shorter runs, while Crandon Park on Key Biscayne offers shaded trails. Local running clubs include the Miami Runners Club and November Project Miami. Open water swimmers train year-round in Biscayne Bay with warm water requiring no wetsuit.

Find Your Next Race in Miami

Browse all endurance races in Florida on RACE