Olympic triathlon training plan, as one season

What the Olympic distance actually asks of you

The Olympic distance is where triathlon stops being three separate hobbies.

It is long enough that the bike genuinely affects the run. What you spend in the second leg is taken out of the third, and a ride that felt controlled can still leave you running on legs that will not turn over. It is also short enough that you cannot hide. There is no long stretch of easy effort to gather yourself in.

That sets the whole training problem. The distance demands real competence in all three sports and refuses to let you specialise in any of them. A strong runner who arrives at the run already emptied will not run to their ability. The race rewards the athlete with no obvious hole in them, which is harder to build than a single strength.

Three sensible plans do not make a sensible week

You can buy a good swim plan, a good bike plan and a good run plan, and end up with a bad week.

Each is defensible on its own terms. Each also assumes it has first claim on your Tuesday, on your long weekend day, and on the recovery that follows. Every plan protects its own quality sessions and its own long day, so on one calendar you inherit more of both than a body can absorb. None of them is wrong. Together they describe an athlete who does not exist.

The failure is rarely dramatic. It looks like a swim done at the right load with none of the intended quality, because it followed a hard ride. It looks like a run block that never progresses, because every run lands on spent legs. The load reads correctly on paper throughout, which is why the problem survives so long.

You have one body, one recovery capacity and one calendar, so the three sports have to be planned against each other from the start. The mechanics are covered in the post on guided triathlon plans.

Transfer is real, and it only goes so far

Once you accept the week is crowded, the temptation is to let the sports substitute for each other. Some of that works and some of it does not.

Central aerobic fitness transfers between endurance sports. Changes in the heart, lungs and blood do not much care which sport produced them, and the evidence is strong. Peripheral muscular fitness is the opposite. It is local to the muscles doing the work, it does not cross over, and that evidence is strong too.

So aerobic development any of the three can deliver is trained once rather than three times, usually in whichever sport carries it at the lowest cost. Cycling is often that sport, because it carries real aerobic load without the impact running carries.

The half usually skipped is that cycling sparing your legs does not mean cycling maintains your running. It maintains neither run-specific durability nor running economy, because both are local. Run-specific work therefore stays in the plan as run-specific work rather than being swapped for riding because the aerobic accounting matched. Transfer is carried as a direction and a confidence grade, never as a decimal, because no defensible exchange rate between the two exists.

What a fixed plan cannot know about you

It cannot know which of the three sports is your actual limiter, which is the only question worth answering before writing a season.

It cannot know your threshold in each of them, so its sets are built on someone else's numbers three times over. It cannot know whether your bike course is flat and exposed or rolling, or whether the swim is a lake or the sea. It cannot know that the pool is free only on certain evenings, or that your hours are better spent on the run than the bike.

How your season is built

History in, course in, available days in, one season out, laid out backwards from race day.

Each leg is scored against the course you entered rather than against the word "Olympic". Your own history is then scored against those demands, leg by leg, which names the gap that matters most and shows its measured size. Earlier phases tackle the least event-specific abilities, later ones the most event-specific work, including race-pace structures and the run off the bike. How the phases lay out is covered in the post on the season planner.

Foundation is what older plans call base, and Event shaping is what they call build. Recovery weeks are placed on a cycle rather than added once you are already flat. Hard-day spacing is enforced across sports, so quality sessions that each satisfy their own sport's rule and land on consecutive days get moved. The constraint belongs to you, not to the discipline.

The figures above are floors, and they are destinations rather than week one. How fast you grow into them is bounded by what you have recently been doing.

What changes when your goal changes

The setup asks what outcome you want, not only which race you entered. There are five levels, from finishing to an excellent result, and the minimums scale with the answer. Choosing excellent over finishing means roughly twice the weekly training time and two more sessions a week, over a longer minimum plan. Same race, same athlete, a genuinely different season.

When life interferes

Missed sessions are forgiven and never stacked. Nothing reappears crammed into next week.

Illness suspends the plan instead of pushing through it, and the rebuild returns you to the level you had actually reached rather than the target you were chasing before you got sick. Anything significant, changing your main focus, rebuilding a block, returning from injury, waits for your approval. Nymiva gives training guidance, not medical care. Pain and illness are escalated, never diagnosed or treated.

Questions people ask

How many swims, rides and runs do I get a week?

That depends on where your gap is, which is the point. The session floor above is a minimum across all three sports, not a per-sport quota, and the split moves as your limiter moves. A season that starts by fixing your swim does not look like one that starts by fixing your bike.

Do I need a power meter?

No. The planning works entirely without one, and perceived effort is a first-class input. What degrades is the precision of the diagnosis, not the plan.

Should I train the run off the bike?

Yes, and it is treated as its own demand rather than as a run. Running economy is measurably worse off the bike than fresh, and the size of that impairment relates to ability. It is a trainable gap, so it gets structures with a stated purpose and a stop rule rather than a jog tacked onto a ride.

Is this a step towards a 70.3?

It can be. The longer race changes the problem again, with fuelling and fatigue resistance becoming limiters in their own right. The 70.3 plan is built around those, and the Olympic distance is a reasonable place to prove your week works before the hours grow.