Coaching

Training Plans

All plansSprintOlympic DistanceHalf Distance / 70.3Full DistanceHalf AquabikeFull AquabikeOff-SeasonPregnancy

Articles

All articlesTraining PhilosophyAthlete Life & LongevityRace Strategy & ExecutionMental PerformanceThe Technical Lab
Race CalendarAboutContact

Race IntelligenceTours, France

IRONMAN Tours Metropole - Loire Valley

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
14 June 2026
Swim
3.8 km
Bike
180 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 Tours Metropole - Loire Valley actually gives you

You swim one calm rectangular loop of the Cher River, ride a genuinely flat and fast 180 km through Loire Valley vineyards and past the Château d'Ussé, then run three flat 14 km loops along the river, each one passing through a festive indoor finish-line arena before you commit to the next. Nothing about the terrain will slow you down. Whether you stay disciplined on a course built for speed is what decides the day.

Show distances in

Swim

3.8 km

River

Layout
1 loop, rectangular
Setting
Cher River

A calm, rectangular one-loop river swim gives a controllable, low-stress opening to a long day.

Source: 2026 current route

Bike

180 km

Flat Riverside Countryside

Layout
1 loop
Setting
the Loire Valley's vineyards and landmarks including the Château d'Ussé

A genuinely flat, fast 180 km through vineyards and historic landmarks removes climbing entirely, so pacing discipline is the whole bike variable.

Source: 2026 current route

Run

42.2 km

Flat Riverside Paths

Layout
3 loops of 14 km
Setting
the Cher River, finishing inside the festive indoor arena

Three flat 14 km loops along the Cher, each passing through the finish-line arena, give constant, honest feedback on how the day is really going.

Source: 2026 current route
Where these course facts come from

These facts come from the organiser’s latest published material: swim, 2026 current route; bike, 2026 current route; run, 2026 current route. 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

Settle in the Cher

  1. 0–3800 m

    One rectangular loop

    Start the long day calm

    A single rectangular loop in the calm Cher River gives a controlled opening. Settle into a pace you can hold for the full 3.8 km, not one you're chasing from the gun.

    • Settle by 400 m
    • Breathe on a fixed pattern

Bike

Don't spend the free speed

  1. 0 km–60 km

    Into the vineyards

    Ride the fast roads to a number, not to their potential

    The course opens onto genuinely flat, fast roads past the Loire Valley's vineyards and landmarks. This is exactly where it's easiest to overspend on a course that lets you.

    • Cap power in the opening kilometres
    • Fuel early, while it's easy

  2. 60 km–130 km

    Past the Château d'Ussé

    Protect the plan through the scenery

    The middle of the ride passes the Château d'Ussé and more of the Touraine countryside. Hold your planned effort regardless of how easy the flat roads make it feel to go faster.

    • Ride to power, not to how good it feels
    • Stay on your fuelling schedule

  3. 130 km–180 km

    Back towards the indoor transition

    Arrive at T2 with a marathon still ahead

    As the flat course closes back towards Tours, shift focus to the three-loop run ahead. Finish planned nutrition and let cadence rise before the indoor transition.

    • Finish the planned bottle
    • Let cadence rise before T2

Run

Use three honest laps

  1. 0 km–14 km

    Loop one

    Run off a fast bike, not race it

    The run leaves the indoor transition for the first of three 14 km loops along the Cher. Use this loop to convert bike legs into running legs, especially if the bike felt easier than planned.

    • Shorten stride out of T2
    • Check effort against your opening cap

  2. 14 km–28 km

    Loop two

    Compare, don't guess

    Passing back through the finish-line arena without stopping is the hardest moment of this run. Use it as an honest checkpoint on loop one's effort before committing to loop three.

    • Compare loop two's pace to loop one's
    • Resist the arena's pull to finish early

  3. 28 km–42.2 km

    Loop three and the finish

    Only race what the first two loops earned you

    The final loop is where a disciplined bike and two honest run loops pay off. If the day has gone to plan, decide deliberately whether to push. If it hasn't, protect the finish.

    • Make the push decision after loop two, not mid-loop
    • Save something for the indoor finish

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
14.1–27.9°CDew point centred on 12.4°C
Wind and gusts
10.5 km/hGusts up to 37.8 km/hPrevailing direction NW
Rain likelihood
Up to 85%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 Tours Metropole - Loire Valley 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 for the pacing discipline this course rewards.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, flat course like this demands.ArticleFix the first ten minutes off the bikeUseful before a three-loop run that starts right after a fast, flat 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.