Tapering: how to cut training before a race without losing fitness

Tapering is the planned cut in training before a race: less volume, a little intensity kept, nothing new. You've spent months building fitness under a pile of fatigue. The taper removes the fatigue so the fitness can actually show up on the day.

It is also the part of a plan people are worst at following. They feel slow, twitchy and guilty, so they sneak in one more hard session and arrive at the start line half-cooked. Below: what is tapering, how long it should last, how much to cut, and how to taper when you run and lift. Do it by hand, or let a coach that programs your week for you schedule it.

What is tapering?

A taper is a short, deliberate reduction in training load before a target event. The classic definition from the research is "a progressive nonlinear reduction of the training load during a variable period of time", aimed at reducing the stress of daily training to make the most of performance (Mujika & Padilla, 2003). The key phrase in that paper: minimize accumulated fatigue without compromising adaptations.

That's the balancing act. Cut too little and you race tired. Cut too much, or for too long, and you start losing the sharpness you trained for. Every race plan worth following, from a 5K block to a half marathon plan with strength built in, ends with one.

The taper is the last phase of how a real training plan is built: base, build, peak, taper. It's not an add-on. It's where the previous phases get cashed in.

Taper vs deload

They look similar on paper. They have different jobs.

Planned recovery weeks set you up for more training. A taper sets you up for a performance. Don't stack a deload directly in front of a taper for "extra freshness". You'll arrive undercooked.

What the research says about tapering

Most taper research comes from endurance sport: swimming, running, cycling, triathlon. The most-cited summary is a meta-analysis of 27 studies in competitive athletes (Bosquet et al., 2007). Its headline finding: the most effective strategy was a taper lasting about two weeks, with training volume reduced by 41–60%, and without changing training intensity or frequency.

An earlier review landed in the same place from a different angle: keep intensity, cut volume hard, and reduce frequency only slightly, by no more than about 20% (Mujika & Padilla, 2003). It also found progressive, gradual tapers did better than a sudden drop, and that performance usually improved by about 3%, with a usual range of 0.5–6%.

Three percent sounds small. In a race, it isn't. It's the difference between a goal time and a near miss, and you get it for doing less.

Recreational runners too

Most of that data is from trained athletes. The best recreational evidence is observational: an analysis of the training of more than 158,000 recreational marathon runners (Smyth & Lawlor, 2021). Runners who tapered strictly, steadily cutting volume each week, were associated with better marathon times than those who tapered loosely, and strict three-week tapers came with a median finish-time saving of about 5.5 minutes, or 2.6%, compared with a minimal taper. Most of the runners in the data didn't taper that strictly.

It's an association, not a trial. But it says the same thing as the lab work: people who actually commit to the taper tend to race better.

How long should a taper be?

Coaching practice scales the taper to the event and to how much fatigue you're carrying:

Longer race, bigger training load, longer taper. A half marathon taper is shorter than a marathon taper because there's less accumulated fatigue to clear. That matches the advice in how to train for a half marathon, where a week to two weeks is plenty for most runners.

How much to cut

The practical version of the research:

• ›Volume: down by roughly half across the taper, cut gradually rather than all at once. The final days are the lightest.
• ›Intensity: stays. Keep short efforts at race pace or a bit faster so your legs remember what fast feels like.
• ›Frequency: stays the same or drops slightly. If you run five days a week, keep running four or five, just shorter.
• ›Nothing new. No new shoes, exercises, gels or "fun" classes. Race week is for doing familiar things smaller.

A sample two-week taper for someone running about five days a week:

Sessions near your race effort, like short intervals around threshold training pace, get shorter rather than disappearing. That's how you stay sharp without adding fatigue.

Tapering when you run and lift

The hybrid trap is tapering the running and leaving the lifting untouched. Heavy squats five days before a race will cost you more than one extra easy run ever could. Both fatigue streams hit the same legs, so both need to come down.

A sensible approach for a running race:

• ›Last heavy lower-body session: about 7–10 days out.
• ›After that: light upper body, core and mobility. Short, familiar, nothing that makes you sore.
• ›Race week: one short session at most, or skip it.

Lifting won't fall off a cliff in that time. Two weeks of reduced lifting is not where strength goes to die.

Tapering for a lifting meet or max test

Strength tapering is less studied than endurance tapering. A review of tapering for powerlifting noted that evidence for peaking maximal strength is lacking, and that coaches often rely on trial and error (Travis et al., 2020).

The common coaching approach mirrors the endurance version: keep the main lifts, keep weights heavy-ish, cut sets and reps sharply, and leave the last few days light. Heavy singles happen a week or more out, not the day before.

Tapering for Hyrox

Hyrox mixes running with stations, so the taper borrows from both. Cut running volume and station volume, keep a short session with a few stations and some running at race pace early in race week, and rest. The full race-week plan is in a guide to how to train for hyrox.

Why tapering feels terrible

Expect to feel off. Heavy legs on easy runs, restlessness, the conviction that you've lost fitness in four days. This is the most common taper experience, and it isn't evidence of anything.

You don't lose meaningful aerobic fitness in a week or two of reduced volume while keeping intensity. That's the whole point of the research above. What you're feeling is your body adjusting to less work and your brain looking for something to worry about.

Things that actually ruin a taper:

• ›The guilt session. A hard workout three days out "to feel ready". You won't be ready. You'll be tired.
• ›The cut that's too deep. Stopping almost completely for two weeks. You feel flat, not fresh.
• ›The novelty week. New shoes, new gel, new stretch routine from a video. Race day is not the day to discover what they do.
• ›Cramming missed training. If you missed a week in the build, the taper is not where you make it up.

When to start tapering

Count back from race day. For a two-week taper before a Sunday race, the taper starts on the Monday two weeks before. The final hard session usually falls about ten days out for a half marathon, and a short sharpener a few days before the race.

If life has already given you a lighter week close to the race (illness, travel, a busy stretch), count it toward the taper rather than piling training back on to compensate.

How exrsz handles tapering

exrsz builds a periodized plan around your race date, so the taper is on the calendar from the start, with running and lifting cut together. Because it adapts each week to how you trained, a build that went sideways ends in a taper that fits what you actually did, and missed sessions get reshuffled instead of crammed into race week.

FAQ

What is tapering?

Tapering is a planned reduction in training before a race or competition: volume comes down, intensity mostly stays, and nothing new is added. It clears accumulated fatigue so you start the event fresh but not flat.

How long should you taper?

It depends on the event. A meta-analysis found about two weeks to be the most effective taper length across the studies it pooled (Bosquet et al., 2007); in practice, shorter races get about a week and marathons often get two to three.

How much should you reduce training during a taper?

The same meta-analysis found volume reductions of 41–60%, with intensity and frequency kept, worked best (Bosquet et al., 2007). Cut gradually, keep a few short efforts at race pace, and keep your usual training days.

Will I lose fitness during a taper?

Not in any way that matters. A short taper that keeps some intensity lets fatigue clear faster than fitness fades. Feeling sluggish during it is normal and doesn't mean you're losing anything.

Should I keep lifting during a taper?

Yes, but lightly. Do your last heavy lower-body session about 7–10 days before a running race, then stick to short, light, familiar sessions so nothing leaves you sore on race day.