I'm Kevin Andreosky. I've finished three Ironman races and a few ultramarathons, but I got into triathlon to support a friend at their first race. SoftStart Tri is the site I wish they'd had.
Most people pick their first race backwards. They hear about a big race, sign up, and then find out it has an ocean swim in October chop. Pick the race that removes the most fear, not the most famous one.
A sprint triathlon is the standard first race. USA Triathlon lists the sprint as roughly a 750 m swim, 20 km bike, and 5 km run, but Florida races vary a lot. Many local sprints use a 0.25 mile swim (about 400 m). Super-sprint and try-a-tri formats are even shorter. Read the exact distances on the race page, not the label.
The swim is where most first-timers get nervous. In order from easiest to hardest for most beginners:
On the race page look for: a first-timer or novice category, a beginner clinic, a relay, Athena/Clydesdale divisions, a recreational wave, and a flat course. These are the exact signals the SoftStart Score counts.
If you can already run 20 to 30 minutes without stopping, 12 weeks is a realistic runway for a sprint. Here is a 12-week beginner plan outline.
Florida summer races are hot and humid, and water temperature affects whether wetsuits are allowed under USA Triathlon rules (rule 3.4, Multisport Competition Rules). Cooler months (fall through spring) are more comfortable for a first race.
Browse all beginner triathlons in Florida sorted by date, or filter the race finder by swim type and beginner flag. Also look at local guides for Orlando, Tampa, and Miami, and find a Florida tri club to train with.
A sprint or shorter (super-sprint or try-a-tri). Check the exact swim, bike, and run distances on the race page because Florida sprints vary.
Pick a pool-swim race or a duathlon for your first event. See the SoftStart pool swim guide.
Many beginners use about 12 weeks if they can already run 20 to 30 minutes. Start from your current fitness.