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Race IntelligenceCalella, Spain

IRONMAN Calella-Barcelona

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
4 October 2026
Swim
3.8 km
Bike
180.2 km
Run
42.2 km

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

Official course routeThe real GPS route for each discipline with official GPX data available, drawn in one shared coordinate space.

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 Calella-Barcelona actually gives you

You swim a single semicircular loop off Calella beach in the warm Mediterranean, then ride two flat-rolling loops along the coast to Badalona, with a published 750 m of elevation gain. From the same transition, you run three loops alternating beach and urban sectors between Calella and Pineda de Mar, finishing at a famously lively finish line. This course is considered one of the fastest in Europe, with times under 8 hours for the sport's best, which makes disciplined pacing the real skill it rewards.

Show distances in

Swim

3.8 km

Open Sea, Single Semicircular Loop

Layout
1 loop
Setting
Calella beach, Mediterranean Sea

A single semicircular loop off Calella beach in the warm Mediterranean is calm and fast by open-water standards.

Source: 2025-dated file, current course

Bike

180.2 km

Flat-rolling Coastal, Two Loops

Layout
2 loops
Setting
the Mediterranean coastline between Calella and Badalona
Elevation
750 m published profile difference

A flat-rolling two-loop route along the coast to Badalona, with a published 750 m of gain, is fast terrain that still asks for real pacing discipline over two identical loops.

Source: 2025-dated file, current course

Run

42.2 km

Beach and Urban, Three Loops

Layout
3 loops
Setting
Calella and Pineda de Mar

A three-loop course alternating beach and urban sectors between Calella and Pineda de Mar, on a course with a reputation for sub-8-hour finishes, tests whatever the bike left unspent.

Source: 2025-dated file, current course
Where these course facts come from

These facts come from the organiser’s latest published material: swim, 2025-dated file, current course; bike, 2025-dated file, current course; run, 2025-dated file, current course. They describe the character of the course. They do not confirm the final 2026 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

One calm semicircular loop

  1. 0–3800 m

    One semicircular loop off Calella beach

    Settle into a warm, calm swim

    A single loop that swims away from shore before curving back is calm and warm by open-water standards. Settle early and save the pace-chasing for the bike.

    • Settle by 400 m
    • Sight off the shoreline

Bike

Two coastal loops, 750 m of real gain

  1. 0 km–90 km

    Loop one along the coast to Badalona

    Respect the published 750 m of gain

    The flat-rolling coastal route carries a real 750 m of elevation gain across two loops, easy to underestimate on a course famous for speed. Hold a power ceiling rather than a speed target.

    • Cap power, ignore speed
    • Fuel through the flatter stretches

  2. 90 km–180.2 km

    Loop two, same ceiling

    Match lap two to lap one exactly

    The second loop repeats the same coastal terrain and gain. Hold the ceiling you set on lap one rather than banking time because the course still feels fast.

    • Compare effort to lap one
    • Finish planned nutrition before T2

Run

Three loops between two towns

  1. 0 km–14.07 km

    Loop one between Calella and Pineda de Mar

    Start conservatively on a fast course

    The three-loop run alternates beach and urban sectors between the two towns. Let the first loop feel genuinely easy, since this course's reputation for speed invites an overpaced start.

    • Shorten stride out of T2
    • Hold opening pace regardless of the crowd

  2. 14.07 km–28.13 km

    Loop two

    Use the repeat as an honest check

    Passing the same beach and urban sectors a second time gives a clear read on how the opening pace is holding after 750 m of real bike climbing.

    • Compare loop two to loop one
    • Keep taking aid on schedule

  3. 28.13 km–42.2 km

    Loop three to the finish

    Spend what disciplined pacing left you

    The final loop finishes at one of the sport's most lively finish lines. If both bike loops and the first two run loops were paced evenly, this is where it pays off.

    • Decide the finish honestly
    • Save something for the finish-line crowd

04 Race week

What I would keep an eye on

There is no useful 2026 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
15.5–24.2°CDew point centred on 15.0°C
Wind and gusts
9.4 km/hGusts up to 40.3 km/hPrevailing direction WSW
Rain likelihood
Up to 65%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 2026.

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 2026 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 full distance 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 full distance 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 Calella-Barcelona 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 routeFull-distance training plansTraining plans built for pacing discipline as much as durability.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

ArticleFull-distance race strategy: calm execution beats chaosThe pacing discipline a fast, well-known course still demands.ArticleFix the first ten minutes off the bikeUseful before a three-loop run that starts right after a two-loop coastal bike.

Evidence

Sources and verification

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