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Race IntelligenceSir Bani Yas Island, United Arab Emirates

Challenge Sir Bani Yas

Know your day before you race it.

Enter four numbers you already train with. You get a likely finish range, target paces and watts, and how I would race this course.

Race day
30 January 2027
Swim
1.9 km
Bike
90 km
Run
21.1 km

Published route evidence. Final 2027 route pending. Checked 15 Sept 2026.

01 Race Card

Build my Race Card

Your first range uses conservative assumptions. Add optional evidence to make it more specific. It is calculated in your browser and saved only on this device.

Your numbers
Distance unit
Weight unit
You and this race
Sharpen your range with more detailOptional. Recent swim, bike and run results, equipment and transitions.

Add only the evidence you have. Every control changes a discipline range, its uncertainty, or an execution-risk explanation.

Swim evidence

Replaces the broad pool-to-open-water assumption.

Bike and equipment

These replace broad mass, aerodynamics, tyre, and power-to-speed assumptions.

Run evidence

A recent effort and honest durability/acclimation answers refine the post-bike run.

Race execution

Transition proficiency changes the T1/T2 range and how wet conditions are treated.

02 The course

What Sir Bani Yas actually gives you

You swim one sheltered loop off the southeast coast of Sir Bani Yas Island, ride a closed, traffic-free ring road around the entire island (with interior connecting roads that climb to 100 m above sea level), then run multiple flat loops through the heart of the race village. This is one of the most controlled courses in the Challenge Half queue. The only real variable is respecting the bike's interior climbs rather than treating the whole ring road as flat.

Show distances in

Swim

1.9 km

Sheltered Sea, Protected From Swells

Layout
1 loop
Setting
the southeast of Sir Bani Yas Island, Arabian Gulf

A sheltered swim loop protected from swells on the island's southeast side keeps the water genuinely calm.

Source: current course description

Bike

90 km

Flat Island Ring Road With Climbing Connector Roads

Setting
the ring road and interior connecting roads of Sir Bani Yas Island, closed to traffic

A traffic-free island ring road is mostly flat, but interior connecting roads climbing to 100 m mean it isn't uniformly so.

Source: current course description

Run

21.1 km

Flat Coastal, Multiple Loops

Setting
through the heart of the race village

Multiple flat loops through the race village put you close to fans and hydration on every pass.

Source: current course description
Where these course facts come from

These facts come from the organiser’s latest published material: swim, current course description; bike, current course description; run, current course description. They describe the character of the course. They do not confirm the final 2027 route.

03 Race plan

How I’d want you to race it

One job for each part of this course. The distance markers tell you when the job changes. The course tells you why.

Swim

Use the shelter

  1. 0–1900 m

    One loop off the southeast coast

    Let the shelter from swells work for you

    A course protected from swells on the island's southeast side gives you calm, controlled water. Settle into rhythm early.

    • Settle by 300 m
    • Sight off fixed island landmarks

Bike

Respect the interior climbs

  1. 0 km–45 km

    The ring road

    Take the flat sections at your planned effort

    The traffic-free ring road is mostly flat and fast. Ride it to your planned power rather than letting the smooth surface tempt you into overspeed.

    • Check effort before average speed
    • Start fuelling early on the flat stretches

  2. 45 km–90 km

    The interior connecting roads

    Respect the climb to 100 m

    The interior connecting roads climb up to 100 m above sea level. Hold your planned effort through these sections rather than assuming the whole course is flat.

    • Cap effort on the interior climbs
    • Finish your nutrition before T2

Run

Use the village loops

  1. 0 km–10.55 km

    Early village loops

    Use the frequent aid stations, not just the crowd

    Multiple flat loops through the race village put hydration and crowd support close at hand. Use the early loops to convert bike legs into running legs.

    • Shorten your stride out of T2
    • Take advantage of frequent aid stations

  2. 10.55 km–21.1 km

    Later village loops

    Let the atmosphere carry you, not set your pace

    The race village's fans and atmosphere are close throughout. Use the energy without letting it dictate your pace.

    • Compare each loop to the one before it honestly
    • Keep the finish decision yours

04 Race week

What I would keep an eye on

There is no useful 2027 forecast this far out. For now, past race dates give us a point of reference. Closer to the race, the forecast will tell us whether the plan needs changing.

Forecast statusToo early for a forecast

A race-day forecast is not meaningful yet; check back closer to the event.

Temperature
16.7–21.5°CDew point centred on 13.0°C
Wind and gusts
18.1 km/hGusts up to 43.2 km/hPrevailing direction NNW
Rain likelihood
Up to 35%Wet-surface uncertainty retained

Historical baseline, 2019–2025 · Open-Meteo historical archive · Updated 2026-09-15.Historical comparison only. This is not a forecast for 2027.

05 Method

What goes into your range

Your CSS, FTP, weight and run threshold create the first range. Open-water, bike, run and execution evidence can replace broad assumptions. Course data and the historical conditions baseline shape every simulation.

  1. Your numbersCSS · FTP · weight · run threshold
  2. This raceDistance · water type · elevation · exposure
  3. Your Race CardFinish and discipline ranges, with target paces and watts

Confidence is built from four inputs

Athlete evidence
Builds with recent open-water, bike and run efforts
Bike setup
Builds with equipment, mass, aero and tyre detail
Course evidence
Partial while the 2027 route is unconfirmed
Race-week conditions
Historical baseline until a forecast is useful
How the model works

It starts with the targets in your Race Card, then samples the parts of a 70.3 that vary: open-water pace, transitions, bike speed at the planned power, and the drop in run performance after the swim and bike. Repeating that calculation produces a likely range rather than a single heroic number.

The current time calculation uses this race’s published distances, or standard 70.3 distances where none are published, with the available course headings, elevation and exposure evidence. Weather scenarios vary temperature, dew point, wind, gusts, rain and water conditions together. Unknown route detail stays visible as uncertainty rather than false precision.

It is not predicting your exact finishing time, placing, or race-day weather. It answers a narrower question: given the plan and the information we have, what range of day is plausible, and where is the uncertainty coming from?

Confidence is not a permanent “low”. It is recalculated across four separate inputs:

  • Your evidence: consistent inputs and recent race-like swim, bike, and run results.
  • Bike setup: measured or specified aerodynamics rather than a broad prior.
  • The course: verified distance and route character, including elevation and technical sections.
  • The conditions: a current forecast is more useful than a historical comparison.

It starts low when those inputs are broad. It can become moderate or high as the evidence improves. A narrower range means better information, not a guarantee.

06 Next steps

If Sir Bani Yas is your race

Your range is built on today’s numbers. The months of training before race day decide what those numbers become.

The work from here.

Self-guided routeHalf-distance training plansTraining plans for the fitness and durability this course asks for.See the plans Personalised routeWork with me on the whole buildCoaching when you want the plan, feedback and race decisions joined up.See coaching

Further reading

ArticleHow to pace a 70.3 so you can still runThe longer version of the swim-bike-run pacing logic behind this Race Card.ArticleOpen water swimming tacticsUseful for settling into the sheltered island swim.

Evidence

Sources and verification

Course status: Partially verified. The organiser’s descriptions and latest published route profiles are in use. The final 2027 route is not yet confirmed. Last checked 2026-09-15.