The long distance triathlon training plan: 226 km, prepared week after week

3.8 km swim, 180 km bike, 42.2 km run: the long distance is a full day of effort. You don't prepare for it by forcing, but by stacking consistent weeks, learning to eat while riding and arriving fresh. You give your race date and your slots: Trainetic tells you from the start whether they are enough, and builds your preparation.

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The five rules of long distance preparation

They come from the French Triathlon Federation (FFTRI) and long-distance coaches. Your plan applies them.

A long preparation, on an existing base. Published plans span five to eight months. A middle distance already completed is the best starting point.

The bike makes the race. It is the longest part of the day, and the one that decides the marathon that follows. The long ride grows up to five hours and more.

You don't run a marathon in training. Every source caps the long run well below that: around three hours at most.

Fueling is a discipline in its own right. Over more than ten hours of effort, eating and drinking are planned and trained.

The taper is longer. Three weeks, where shorter formats take two.

What your plan sets for a long distance

The settings of the Trainetic engine for this format. Everything else — durations, paces, volume — is calculated from your level and the slots you give it.

Benchmark	In your plan
Minimum slots	Two swim sessions, two bike sessions, three run sessions per week
Long ride	It builds up to five hours
Long run	It builds up to three hours
Run off the bike (brick)	Up to one hour, at race pace by the end of the plan
Taper	Three weeks, with volume coming down and intensity maintained

On a long distance, only one hard run session per week: the marathon is prepared at easy pace.

The sessions that make a long distance

Little intensity, a lot of duration, and a brick every week during the build and race-specific phases.

The long ride

It builds up to five hours, with long blocks at race pace during the race-specific phase. This is the session where you dial in your position and your fueling.

The brick

Ideally placed after the long ride, the run is added for up to one hour, with a timed transition.

The long run

Up to three hours, always at easy pace, and never on the same day as the long ride.

Are your slots enough?

A long distance takes time in every discipline, and at least three run sessions per week. When you create your plan, Trainetic compares what you do today with what the format requires. If something is short, it tells you which discipline is holding you back, and offers you a longer plan or a shorter format.

The five mistakes of the long distance

Riding too hard. 180 km at a pace “that feels easy” at kilometer 30 gets paid for at kilometer 20 of the marathon.

Eating too little, or too late. By the time hunger and thirst show up, it is already late. Fuel at regular intervals, from the very start of the bike.

Running long distances too often. Running is the discipline that takes the biggest toll on the body. Beyond three hours, it costs more than it gives back.

Trying to make up for a missed week. A long distance preparation plays out over months: let a lost week go.

Cutting the taper short. The last three weeks are there to get you to the start line fresh: that is when your form comes through.

Where these figures come from

Every benchmark on this page comes from a public source.

The French Triathlon Federation's volumes for the long distance: around ten hours per week, a long ride of up to six hours, a long run of 1 h 45 to 2 h 15. TrainingPeaks goes higher (14 to 16 hours, runs up to 3 hours): volumes are open to debate, but capping the run below the marathon is a consensus.

Carbohydrates during the race: up to 90 g per hour beyond two and a half hours of effort, mixing sources (Jeukendrup, Sports Medicine, 2014). The Federation advises at least half a liter of water per hour and alternating sweet and savory.

The taper: volume reduced by 41 to 60 % with intensity maintained (Bosquet, 2007; PLOS One, 2023).

The questions people ask before a long distance

How long does it take to prepare for a long distance triathlon?

Five to eight months for most triathletes, on a long-distance base. Your plan starts from your race date and from what you do today.

How many hours per week?

Published benchmarks range from around ten hours to more than fifteen hours per week, depending on the coach. Your plan does not set hours: it fills your slots, and tells you if one of the disciplines is short on volume.

What is the longest ride?

In your plan, it builds up to five hours. Some coaches go up to six or seven hours: beyond five hours, the endurance gain is debatable, the fatigue much less so.

Should you run a marathon beforehand?

No. No source recommends it during the preparation. The long run caps out at around three hours.

How many carbohydrates and how much water per hour?

Up to 90 g of carbohydrates per hour for triathletes trained to digest them, and at least half a liter of water. Your stomach trains on your long sessions, gradually.

Do you need to have done a middle distance first?

It is strongly recommended. A middle distance plan teaches you to manage effort and fueling over an already long duration.

Is a wetsuit mandatory?

It depends on the water temperature, measured on race day: the French Triathlon Federation's rules make it mandatory below 16 °C and ban it in warm water, above roughly 24.5 °C. The exact thresholds are in the current rulebook and are announced by the organizer: check them before you sign up.

Is it free?

Yes, for the essentials: creating your triathlon plan, taking it with you as a PDF and tracking your sessions. A subscription exists for advanced features, such as a written analysis of each session. The plan itself does not need it.