TriPeak

Reverse periodisation training

Sharpen in the winter, build the distance into the spring.

How the week is distributed

A reverse periodisation week puts roughly 65% of training time easy, 20% moderate and 15% hard. The percentages are of time, not of sessions — which is why a week with two hard sessions in it can still be 65% easy.

Easy

65% of weekly training time

Moderate

20%

Hard

15%

How it plans

• Do the short, sharp work when the weather and the daylight are against long sessions.
• Grow session duration as the race approaches, converting speed into endurance rather than the other way round.
• Keep race-specific intensity in the plan year-round rather than saving it for a peak.
• Let the indoor trainer and the pool carry the winter; take the volume outdoors in spring.
• Plan the last long block to finish at race duration and race intensity, not beyond it.

Why it is meant to work

Traditional periodisation builds volume first and adds intensity as the race approaches. Reverse periodisation does the opposite, and the argument for it is mostly practical: in a northern winter the long outdoor sessions are the ones that are hard to do, and the short sharp ones are the ones a trainer or a pool can deliver.

The secondary argument is that race-specific intensity held year-round prevents the loss of top-end fitness that a long pure base block causes, so less time is spent regaining it later.

It is a scheduling argument rather than a physiological one. That is not a criticism — a plan an athlete can actually complete in February beats a better plan they abandon — but it should not be mistaken for a claim about adaptation.

Who it suits, and how it fails

Suits

Northern winters, early-season races, and athletes who can only train long at weekends in good weather.

Watch out for

Front-loads the hardest work into the time of year with the least recovery and the least daylight. Needs a real easy week every third or fourth or it unravels in February.

Strength of evidence

A scheduling argument more than a physiological one: the ordering suits the calendar rather than a known adaptation sequence. Comparisons with traditional periodisation are largely inconclusive.

The research behind it

Every citation below was checked rather than remembered, and each note says what the study found and what it does not establish.

1. Casado et al. (2022), International Journal of Sports Physiology and Performance 17(6):820–833Reviews how periodisation is actually organised in elite distance running. Useful mainly as the contrast: the conventional ordering dominates, and reverse schemes are the exception rather than an established alternative.
2. Comparison of Polarized Versus Other Endurance Training Intensity Distributions (2024), Sports MedicineIndirectly relevant: if the distribution itself matters less than assumed, the order in which the distributions are visited over a season plausibly matters less too. Comparisons of traditional against reverse periodisation are few and largely inconclusive.