Improve at triathlon, even with no race on the calendar

In the off-season, or simply to get faster: a well-built training block improves all three disciplines at once. No date needed: Trainetic sets up a block of several weeks, and ends it with a test in each discipline so you know where you stand.

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The five rules for improving at triathlon

They come from the French Triathlon Federation (FFTRI) and from research on endurance training.

Consistency first. The Federation sums it up like this: train regularly, alternate load and rest, and increase frequency before volume.

Lots of easy, a little hard. Most sessions are done at low intensity. The exact share of moderate effort is debated for recreational triathletes; the principle is not.

Measured benchmarks in each discipline. A 400 m time in the swim, a reference speed on the bike, your maximal aerobic speed (MAS) on the run: all your paces flow from them.

Your weakest discipline deserves one more session. That is where you have the most room to improve.

A block, then a test. Without measuring, you can't tell whether you are improving. The end-of-block test gives you the benchmarks for the next block.

The three end-of-block tests

The last session in each discipline becomes its test. Your results become the benchmarks for the next block.

Discipline	The test	What it measures
Swim	A timed 400 m, within a session of about 1,500 m	Your pace per 100 m, from which all your sets are derived
Bike	20 minutes all out, within a session of about 50 minutes	Your average speed and heart rate over the effort
Run	A self-paced effort over the length of your slot	Your current form, to reset your paces

The block lasts eight weeks by default. It follows the same phase calendar as a race preparation: base, build, race-specific.

How a block to improve works

You give your slots in each discipline and your weakest discipline. The plan does the rest.

Three progressions in parallel

Swim, bike and run each have their own phases and their own session catalog: technique and endurance first, then threshold, sweet spot, MAS.

Your weakest discipline, worked on first

You declare it when you create your plan: it gets one extra quality session in the week, as soon as your level allows. Your strongest discipline keeps at least one.

Safeguards between disciplines

Never two hard sessions on the same day, never two hard run sessions less than 48 hours apart, at most three hard sessions per week outside the brick.

What if I have a race coming up?

Then your plan lines up with its date and its format, from your first triathlon to a long distance plan. The same principles apply, with a taper at the end.

The five reasons people plateau in triathlon

Doing everything at the same intensity. Never truly easy, never truly hard: the zone that tires you out without making you better.

Only training your favorite discipline. The runner who runs more, the swimmer who swims more: it is comfortable, and it is where the margin is smallest.

Stacking hard sessions. With three disciplines, it is easy to end up with three fast sessions too many. Your body improves during recovery.

Neglecting swim technique. In the water, a more efficient stroke often gains you more than extra meters.

Never testing yourself. Paces that no longer match your level make you train too slowly, or too fast.

Where these figures come from

And what they really say.

Consistency, alternating load and rest, and frequency before volume are the French Triathlon Federation's advice for improving.

The “lots of easy” distribution comes from the work of Seiler (2010) on endurance athletes. In recreational triathletes racing a middle distance, time spent at moderate intensity has been associated with a faster finish time (Muñoz et al.): the exact share of moderate effort is debated.

The 400 m test gives a reference pace per 100 m, in the spirit of the critical swim speed (CSS) used by swim coaches.

The 20-minute bike test is the classic format popularized by Hunter Allen and Andrew Coggan; your plan keeps the speed and heart rate from it.

The questions people ask about improving

Why am I plateauing?

Most often, because all your sessions look alike, never truly easy and never truly hard, or because your weakest discipline is always the one you skip. A structured block fixes both.

More volume or more intensity?

Consistency first, then frequency, then volume. Intensity stays a small part of the week.

How do you improve your swimming when you come from running?

Through technique and frequency: three short sessions are worth more than one long one. Declare swimming as your weakest discipline, and your plan gives it one extra quality session.

Do you need a power meter on the bike?

No. Your plan relies on a reference speed and your heart rate, and the end-of-block test resets them.

How many sessions per discipline?

Two per discipline is a solid base. Your plan fills the slots you give it, within a limit of three hard sessions per week.

How long does a block last?

Eight weeks by default. At the end, the three tests give you your new benchmarks.

What if I have a race coming up?

Choose its format: sprint plan, Olympic distance plan, middle distance plan or long distance plan.

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.

Improve at triathlon, even with no race on the calendar

The five rules for improving at triathlon

The three end-of-block tests

How a block to improve works

Three progressions in parallel

Your weakest discipline, worked on first

Safeguards between disciplines

What if I have a race coming up?

The five reasons people plateau in triathlon

Where these figures come from

The questions people ask about improving

Your block to improve at triathlon, in moments.

Where are you coming from?

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