70.3 · 24 October 2027 · Santa Catarina, Brasile
Ironman 70.3 Florianópolis 2027
Ironman 70.3 Florianópolis takes place on October 24, 2027 on the island of Santa Catarina, based at Ingleses beach. One-lap ocean swim, a 90 km bike with 546 m of climbing on fast roads, and a virtually flat 3-lap run along the coast. Mild spring weather (highs 23-25 °C, water 20-22 °C). The wind and heat ratings are judgments based on available data; the split times below are rough estimates, not official figures.
Course
Three legs, three different races
Indicative profile · Scheda automatica da fonti pubbliche (2026-11): da rivedere. The organiser publishes the final course in spring: this page updates.
Swim1.9 km
- 1.9 km in the ocean, a single lap, rolling start from Ingleses beach.
- Average water temp 20-22 °C: wetsuit almost certainly legal (age-group limit 24.6 °C, measured 1h30 before the start).
- Race-issued swim cap is mandatory; turn buoys must be rounded correctly.
- Swim cutoff: 1h10.
Bike90 km · 546 m D+
- 90.1 km on one lap, rolling course on the SC-403 and SC-401 highways.
- 546 m of climbing: roughly 7 km of false flat uphill (1-3%), 6 km above 3%, 13 km of descent and the rest flat (PJAMM profile).
- 12 m draft zone for age-groupers; penalties served in the penalty tents.
- Intermediate cutoff at km 80.6 at 11:08; swim+T1+bike within 5h of your swim start.
- Trash only in the aid station drop zones.
Run21.1 km
- 21.1 km on 3 laps along the beaches; effectively flat profile (about 26 m of gain per PJAMM).
- Headphones/earbuds are banned.
- Shoes: 40 mm max stack height and a single rigid plate.
- Final cutoff: 8h30 from the start.
Which athlete it takes
| Goal | Swim | Bike | Run | Total |
|---|---|---|---|---|
| Comfortable finisher | 0:50 | 3:20 | 2:30 | 6:55 |
| Mid-pack goal | 0:40 | 2:55 | 2:05 | 5:55 |
| Fast goal | 0:34 | 2:35 | 1:45 | 5:05 |
| Top age-group | 0:29 | 2:22 | 1:28 | 4:28 |
Indicative splits from recent editions' results, transitions included. The personal forecast, below, compares them with your data.
What the course asks
Stories from the race
The best of the race
A selection of the most watched videos and the most popular photos. The full galleries are at the bottom of the page.
Reviews
Who raced it, what they say
At launch, pages start from syntheses of public race reports, declared as such. Verified reviews come from athletes who receive the invite within 7 days of the race, with the activity recorded on their device.
Structured fields: finish and leg times from your device, wetsuit yes/no, gear, perceived temperature, what you'd do again and what not, «I'd race it again». Free text is the race report. The linked activity makes it verified without exposing personal data.
The form appears here after the race, for those who connected a device or appear in the official results.
Can I wear a wetsuit? For age-groupers yes, up to and including 24.6 °C. With average water temps of 20-22 °C it's very likely legal, but the official measurement is taken 1h30 before the start: bring a non-wetsuit swimskin too. What are the cutoff times? Swim 1h10; swim+T1+bike within 5h of your start; intermediate bike cutoff at km 80.6 at 11:08; finish within 8h30 of the start. What's the bike course like? A single 90.1 km lap on SC-403 and SC-401 with 546 m of climbing: roughly 7 km of 1-3% false flat, 6 km above 3%, 13 km of descent and the rest flat per the PJAMM profile. Is the run really flat? Effectively yes: 3 laps along the beaches with about 26 m of total gain per PJAMM. What's the weather like in late October? Mild spring per the official pages: highs 23-25 °C, lows 18-20 °C, sea water at 20-22 °C. Can I run with headphones or earbuds? No, they're banned during the race. Get used to training without music in the weeks beforehand. Are there restrictions on running shoes? Yes: 40 mm max stack height and a single integrated rigid plate. Check your model before flying to Brazil. How does bike check-in work? Your bike must be racked in transition before the race; pickup requires your bib and chip. Any GPS mounted on the bike must be stowed in your transition bag. Lost chip: R$350 fee. Where do I find packet pickup and briefing times? In the athlete guide, published about a month before the race on the official website. Current sources don't list these times. What's the swim start like? Rolling start from Ingleses beach, a single 1.9 km ocean lap. Race-issued cap is mandatory and turn buoys must be rounded correctly.
The Q&A is fed by reviews and the rulebook: every answer says where it comes from.
Preparation tips
What to do from today to race day
The water is usually 20-22 °C, but the official measurement happens 1h30 before the start: bring both a wetsuit and a non-wetsuit-legal swimskin or tri suit.
The opening climb is a 1-3% false flat: in training, simulate long stretches at steady intensity in the aero position.
40 mm max stack and a single plate: confirm your model is compliant before flying to Brazil.
They're banned on the run: get used to training without music in the weeks beforehand.
Mandatory bike check-in
Your bike must be racked in transition before the race; pickup requires your bib and chip. Lost chip: R$350 fee.
GPS in transition bag
Any GPS unit mounted on the bike must be stowed in your transition bag per the rules.
Athlete guide
Published about a month before the race, with penalty tent locations and operational details.
Race base at Ingleses
Swim start and race venue in the Ingleses beach area, in the north of the island.
Guides and deep dives
Everything you need before you register
One article per topic, written from the sources listed at the bottom of the page and updated every edition. AI syntheses are declared as such.
Race Day at 70.3 Florianópolis: Timeline, Cut-Offs, and the Mistakes to Avoid Before the Start
From race week to the finish line within 8:30: the sequence of decisions, the time limits to know by heart, and a plan B for every scenario.
Logistics · 3 min · AI synthesisFlorianópolis 70.3 Logistics: Base Yourself in Ingleses, Bike Check-In, and What to Know Before Flying to Brazil
Where the race takes place, how bike drop-off and pick-up work, and which details only arrive with the athlete guide a month out.
Run · 3 min · AI synthesisThe Florianópolis 70.3 Half Marathon: Three Flat Laps Where Every Pacing Mistake Costs You
21.1 km along the coast with roughly 26 m of elevation gain and mild weather: an honest course that rewards those who have a plan and stick to it from the first kilometer.
Bike · 3 min · AI synthesisThe Florianópolis 70.3 Bike Course: 90 Rolling Kilometers to Ride by Watts, Not by Feel
A single loop on the SC-403 and SC-401 highways with 546 m of climbing: here's how to break it into segments and where you actually gain time.
Gear
What age groupers ride and what this course asks for
At Kona, age group average
Latest Kona bike count (2026): about ≈2,260 age-group bikes, pros excluded. Shares of bikes counted.
World Championship athletes are qualified and more performance-oriented than the average field here. Source: Slowtwitch, compiled with volunteers and IRONMAN access. Slowtwitch
Wheels for this course
A rule of thumb from this course: 6.1 m of climbing per km and low wind exposure. It is guidance, not a count. (rolling)
Front wheel
50-65 mm deep
Rear wheel
Disc, or a deep wheel (60-80 mm) if you prefer
Tyres
28-30 mm, tubeless if possible. Choose pressure by weight and road surface, not by habit.
Check the weather and the wind forecast on race week: on windy days, drop a depth step on the front wheel.
Race kit
Fuel and pack, nothing forgotten
Work out carbs, fluid and sodium for this course, split into bottles, gels and bars, then tick off everything to pack from passport to Vaseline.
Start at 60 g/h if you have not trained your gut, 80-90 if you have. Never try new products on race day.
Before the race
Carb load
560-700 g carbs per day for the last 1 day(s)
Breakfast, 3 h before
70-140 g carbs, low fibre, familiar food
On the bike 2:55
Every 20 min · 23 g carbs and about 200 ml
On the run 2:05
Every 20 min · 17 g carbs and about 167 ml
Whole race
After the finish
70-84 g carbs and about 21 g protein within the first hour
General guidance for healthy adults, not medical advice. Adjust with your coach or dietitian and rehearse it in long sessions.
Sources
Where what you read comes from
Race reports, blogs, videos and threads that tell Florianópolis. Linked, never copied: they feed the syntheses, the FAQ and the Q&A.
Your plan for Ironman 70.3 Florianópolis
Connect what you have, the course does the rest
First today's form and the forecast for the three legs, then a preview of the week built on the Florianópolis segments and your routes. The account comes after, if it convinces you. Until 31 December 2026 everything is free: we're in alpha.