September in Florida is a transition month. The summer heat is still very much a factor, meaning early morning starts and serious hydration plans are your best friends. But it also marks the unofficial kickoff to the fall racing season. If you are training for a late-fall or winter marathon, a September half is a perfect checkpoint. If this is your first 13.1, flat Florida courses are incredibly forgiving on the legs, letting you focus on your fueling and pacing rather than battling massive hills.
There are 41 half marathons across the state this month, ranging from multi-day endurance festivals to laid-back, margarita-fueled finish lines. Whether you want a quiet trail run under the canopy or a lively road race near the theme parks, Florida has a start line waiting for you. Let's look at some of the standout options to help you plan your next adventure.
Labor Day Triple
If you are looking for a unique way to spend the holiday weekend, the Labor Day Triple in Winter Park is a Solid Pick. Scheduled for September 5, 2026, this event is built around Cady Way Park and offers a flat, road-based course that is perfect for settling into a steady rhythm. What makes this event special is the sheer variety of distances—ranging from a 10K all the way up to a 50K.
For half marathoners, this means you will be sharing the course with runners tackling all sorts of different milestones. The flat terrain is a huge confidence booster, especially if you are testing your fitness for the first time or returning to the distance after a break. Cady Way Park provides a great backdrop for a late-summer race, and the community atmosphere of a multi-distance event always brings excellent energy to the start line. Just remember to respect the September weather and pace yourself early.
Margaritaville Run Orlando Half Marathon
Sometimes you sign up for a race to chase a specific time, and sometimes you sign up because there are margaritas at the finish line. The Margaritaville Run Orlando Half Marathon, 10K & 5K in Kissimmee delivers heavily on the latter, while still offering a USATF-certified road course for those who want an accurate, flat route.
Taking place on September 26, 2026, this race leans all the way into the island escape theme. It is a fantastic choice for a destination race with friends or a celebratory first half marathon. The flat roads mean you won't be fighting elevation, leaving you with more energy to enjoy the Parrothead atmosphere. Running 13.1 miles is a serious accomplishment, but this event reminds us that the journey should also be genuinely fun. Lace up, enjoy the tropical vibes, and get ready to celebrate your finish with a well-earned drink.
Medal Madness at Royal Palm Beach
For runners who prefer a low-stress, community-focused event without the massive crowds of a mega-race, the Medal Madness 5K, 10K, & 13.1M at Royal Palm Beach, FL (37) is a great option. Scheduled for September 12, 2026, this flat road race kicks off right at 8:00 AM.
The Medal Madness series is known for its straightforward logistics—you just need to remember that all registration happens online beforehand, as there is no on-site sign-up. This is the kind of race where you can simply show up, pick up your packet 30 minutes before the gun goes off, and focus entirely on your run. The flat course is incredibly welcoming for first-timers who want to avoid intimidating hills, and it serves as a great, predictable training run for experienced half marathoners logging miles for a bigger fall goal.
Medal Madness at Bradenton
Over on the Gulf Coast, the Medal Madness 5K, 10K, & 13.1M at Bradenton, FL (38) offers another accessible, flat road race on September 19, 2026. Like its sister races, this event prioritizes a simple, runner-friendly morning.
With an 8:00 AM start time, you will want to arrive early to park near the playground and grab your packet. The flat terrain makes it an excellent venue for locking into your goal pace and practicing your hydration strategy—a must for Florida running in September. Whether you are local to the Bradenton area or making a short weekend trip out of it, this race provides a supportive, low-pressure environment. It is a perfect setting to prove to yourself that your summer training has paid off, surrounded by a community of runners doing the exact same thing.
Medal Madness at Largo
If you are in the Tampa Bay area, the Medal Madness 5K, 10K, & 13.1M at Largo, FL (37) on September 12, 2026, is a solid addition to your racing calendar. This one features a slightly later start time of 8:30 AM, so you will definitely want to have your warm-weather running gear ready.
The course is flat and entirely on the road, making it a highly predictable and manageable route for runners of all experience levels. The race organizers provide course guidance to keep everyone on track, which is always a comforting detail when you are deep into the later miles of a half marathon. If you are using September to build momentum for the rest of the year, this Largo event is a fantastic, straightforward race that lets you get the work done and celebrate your progress with fellow runners.
Medal Madness at DeBary
Nature lovers will appreciate the setting of the Medal Madness 5K, 10K, & 13.1M at DeBary, FL (36). Taking place on September 5, 2026, this flat road race is based around the beautiful Gemini Springs Park.
Runners are instructed to enter the park from Dirksen Drive, setting the stage for a scenic and peaceful morning. Starting at 8:30 AM, you will have the chance to enjoy the natural Florida landscape while ticking off your 13.1 miles. The flat roads here are gentle on the joints, which is exactly what you want whether this is your first half marathon or you are a seasoned runner maintaining your mileage streak. The park setting also makes for a great post-race cool down, giving you a chance to stretch out and reflect on a great early-September finish.
Medal Madness at Hollywood
For those in South Florida, the Medal Madness 5K & 10K at Hollywood, FL (38) takes place on September 19, 2026. While the primary distances noted here are the 5K and 10K, it is part of a broader series that caters to runners looking for flat, fast road courses.
The park gates open at 8:00 AM for a 9:00 AM race start, giving you plenty of time to hydrate, warm up, and get into the right headspace. A 9:00 AM start in Florida means you will be running in the sunshine, so wearing a visor and bringing your own hydration is a smart move. The Hollywood location offers a great excuse to hit the beach after you cross the finish line, turning a standard race morning into a full day of celebrating your running journey.
Medal Madness at Tallahassee
If you want to trade the pavement for the dirt, the Medal Madness 5K, 10K, & 13.1M at Tallahassee, FL (36) is a standout option. Scheduled for September 5, 2026, this event offers a flat trail course, which is a wonderful change of pace from standard road races.
You will park at the Miccosukee Canopy, hinting at the beautiful, shaded environment you get to run through. Trail running engages different stabilizer muscles and forces you to stay present, making the miles fly by. An 8:00 AM start helps you beat the worst of the heat, and the flat terrain ensures that even if you are new to trail running, you won't be overwhelmed by technical climbs. It is a fantastic way to experience North Florida's natural beauty while earning your half marathon finisher medal.
How to Choose Your September Florida Race
With 41 half marathons happening across Florida this September, narrowing it down comes down to what kind of experience you want. If you are looking for a massive party and a destination vibe, the Margaritaville Run in Kissimmee is hard to beat. If you want a quiet, nature-filled morning, the trail course in Tallahassee offers beautiful canopy views. For runners who just want to test their fitness on a flat, straightforward road course, the various Medal Madness events provide accessible, low-stress environments all over the state.
Remember that September in Florida requires respect for the heat—prioritize races that fit your hydration strategy and start early enough for your comfort level. Whether you are lining up for your very first 13.1 or adding another state to your long-term journey, Florida has a start line ready to support your next adventure. Check out our full list of Florida half marathons to find the perfect fit.