Need to Know Info...

Packet Pickup: Friday, May 25, 2018 - 5:00pm to 6:30pm at the race site (Sombrero Beach).  Please come to packet pickup to avoid race day delays!  You don't want to be the one holding up the race start...


Race Start: Saturday, May 26, 2018 - 7:00am (we recommend arriving well before 6:00am to setup your area in transition, etc).  There will be a pre-race briefing at 6:45am, all racers must listen in as there may be critical race changes or updates the morning of the race.

We encourage all participants to come to Packet Pickup to avoid any delays the morning of the race, to see the race site, and to ask any questions about the race.  If you have any questions now though, please Contact Us.

Don't forget your goggles and helmet!  Download our Triathlon Checklist to make sure you don't forget anything on race day.  This is our basic list, but feel free to adjust it to your needs (like bringing your lucky socks or post-race volleyball).

Distances and Categories

MaraTri has two race distances: "Mini" and "Sprint."  The Sprint distance consists of two laps of each Mini distance leg.  You also have the option of racing as a Relay team (two or three people).

Mini Triathlon
400 meter swim, 6.8 mile bike, 1.55 mile run

Sprint Triathlon
800 meter swim, 13.6 mile bike, 3.1 mile run

How it All Started

The Florida Keys is a fantastic location for triathletes and outdoor-lovers alike, as the water is the warmest in the U.S. year-round.  Our Florida Keys Overseas Heritage Trail, that extends the length of the Keys (over 100 miles), is a cyclist's paradise.  And running across islands under palm trees is certainly a beautiful thing...  MaraTri (short for Marathon Triathlon) was founded by two Marathon locals with a passion for family-fun events and endurance sports.  Our first race was simply an intro to triathlon for the local community on the sports of triathlon, but it was a huge success!  Our event continues to grow, each year being bigger and better than the last  Every participant came and left with huge smiles every race.  And we're right there with you cheering you on to be the best you can be!  We are dedicated to making MaraTri one of the best run races anywhere.  Come race through paradise with us!  See you at the starting line!



MaraTri is dedicated to supporting youth athletics and athletes with disabilities.  All race proceeds will benefit athletic programs and the Special Olympics.  Please show your support by registering to race, or contact us to volunteer!


We believe that a race is only as strong as its volunteers.  We're looking for energetic, dedicated volunteers to help keep our course safe and fun for all our racers.  Please fill out our volunteer form to be added to our list (there is a mandatory meeting before the race).  Community service hours can be given for your time volunteering.  Let's make this race awesome together!

Amenities & Attractions

Marathon is located in the heart of the Florida Keys.  It's a beautiful location with fresh local seafood restaurants, amazing coral reefs and fishing just off shore, and low-key atmosphere that is a perfect cool down after a fun race at the beach.  Please visit our Marathon Visitors Center website for more info:

Learn More...

Here are some more videos to walk you through the race.  And some videos just for fun!