Lago Paranoá, provisional swim site
Establish rhythm before the first turn
The calm lake swim rewards an honest, controlled opening.
Seed honestly. Settle into rhythm.
Race Finder IRONMAN 70.3 Brasilia.
Race Intelligence · Brasília, Brazil
IRONMAN 70.3 Brasilia.
Your best day in Brasília.
Brasília looks made for speed: a lake start, broad city roads and open space near Pontão do Lago Sul. But a course described as flat is not a reason to turn the bike into a 90 km personal-best attempt.
Brasília, Lake Paranoá at sunset.
- Race day
- 18 Apr 2027
- Course
- Swim 1.9 km · Bike 90 km · Run 21.1 km
- Historical air
- 19–27°C
Your day in Brasília
What could you race?
I’m Tom, the coach behind Sense Endurance Coaching. Tell me where you are now and I’ll show you what a strong day in Brasília could look like.
The course behind your race
A fast-looking city asks for a slower first decision.
Lago Paranoá and Pontão do Lago Sul make Brasília a strong setting for a fast-looking half. The broad roads can make speed feel effortless until the run begins. Keep your effort measured, especially on any repeated stretches. The 2027 route remains unconfirmed.
Brasília bike, earlier stage
Take a sensible number onto fast roads
With no hills to force pacing discipline, it's easy to override on this flat, landmark-lined route. Hold your number regardless of how easy it feels.
Cap opening effort. Fuel early.
Brasília bike, later stage
Protect the run despite tempting average speed
Repeat the first lap's effort and finish planned nutrition before the three-lap park run.
Stay patient. Finish planned nutrition.
Brasília run, first section
Let your legs recover from the aero position
Let the first tree-lined lap feel easy, not fast.
Easy first aid station. Check posture.
Brasília run, middle section
Keep the work steady without chasing runners
Repeat the first lap's effort rather than letting it drift.
Stay tall. Keep fuelling.
Brasília run, final section
Choose the finish pace with evidence from the day
Only progress on the final lap once the first two have held together.
Choose the last move late.
What to check in race week
Confirm the 2027 date, Lago Paranoá swim start, bike road closures and half-marathon course before setting lap targets. Earlier maps provide background, not this edition's turns. Check transitions, aid and the actual race-day conditions.
Forecast statusToo early for a forecast
A race-day forecast is not meaningful yet; check back closer to the event.
- Temperature
- 18.7–26.9°CDew point centred on 17.5°C
- Wind and gusts
- 8.1 km/hGusts up to 30.6 km/hPrevailing direction E
- Rain likelihood
- Up to 100%Wet-surface uncertainty retained
Historical baseline, 2019–2025 · Open-Meteo historical archive · Updated 2026-09-14.Historical comparison only. This is not a forecast for 2027.
Make your finish prediction and I can send this plan to you in race week.
Your plan, in race week
Prepare for Brasília
Build the legs.
Practise the decisions.
A finish range gives you something to work towards. The preparation is specific to this race: steady power on seemingly easy urban roads and an unhurried half-marathon start are habits rather than last-minute promises.
I’m Tom. With Sense Endurance Coaching, I’ll build that preparation around your life, follow how you respond and adjust the work as you get closer to Brasília.
Explore coachingTrisutto certified80/20 Endurance certifiedBrett Sutton’s Coach the Coach programme
Training on your own? See half distance plans
Method
