What is a taper, and why it matters
The taper is the part of training that feels like cheating. After weeks of building up, you deliberately do less in the final stretch before your race or big hike, and you show up faster for it. It is one of the best-supported ideas in endurance sport and also one of the most commonly fumbled, because doing less right before the hardest thing you have trained for goes against every instinct. Here is what a taper is, why it works, and how to get it right.
What a taper actually is
A taper is a planned reduction in training volume during the final one to three weeks before a goal event. You cut back how much total work you do, while keeping some of the harder, sharper sessions, so that the accumulated fatigue from training drains away without your fitness draining with it. The key word is volume. You are not stopping; you are doing less of the easy bulk so your body can recover and consolidate the work you have already banked.
Why it makes you faster
During hard training you are always carrying some fatigue. Your fitness is rising, but so is your tiredness, and on any given day your performance is roughly the fitness you have built minus the fatigue you are carrying. A taper attacks the fatigue side of that equation. By cutting volume, you let the tiredness fade much faster than the fitness does, so your usable performance jumps in the final days. Coaches sometimes describe the rebound as supercompensation: reduce the load at the right moment and the body overshoots back to a fresher, stronger state.
A landmark meta-analysis of taper studies in trained athletes found that the optimal strategy, progressively reducing training volume by roughly 41 to 60 percent over about two weeks while keeping intensity and frequency, produced an average performance improvement of around 3 percent. For a marathoner, a few percent can mean several minutes.
Source: Bosquet et al., Effects of Tapering on Performance, a meta-analysis, Medicine and Science in Sports and Exercise, 2007.Keep the intensity, cut the volume
The most common taper mistake is resting completely. It feels logical to stop and recover fully, but athletes who cut out all hard efforts tend to arrive flat and sluggish. The research is clear that the best tapers slash volume while keeping some intensity, a few shorter, sharper sessions, so the body stays primed. Think of it as doing less, not nothing. You drop the long, draining sessions but keep a taste of race-pace work to stay sharp.
How long should a taper last?
It scales with the event. A marathon taper is classically about three weeks, because the training block builds a lot of fatigue that takes time to clear. A shorter race needs less. A big backpacking trip often does well with a shorter taper of one to two weeks. The general principle is that the harder and longer the goal effort, the more fatigue you have accumulated, and the longer you need to ease off to shed it. Most tapers fall in the one to three week range.
The taper applies to hikes too
Tapering is not just for racers. The same logic holds for a demanding hike or backpacking trip: you spend weeks building loaded climbs and long days, then ease off in the final week or two so you reach the trailhead rested rather than run down. A hiking taper is usually shorter than a marathon taper, but arriving fresh makes the same difference on a steep, multi-day route as it does on a start line. Bank the training, then let rest bring it out.
Let the plan handle your taper
The good news is you do not have to design the taper yourself. Both of our free tools build it in automatically. The hiking training plan generator finishes your build with a sensible taper before your trip, and the running plan generator includes a proper taper for your 5k, 10k, half, or marathon. Enter your goal date and the plan steps the volume down for you, no signup and no paywall.
To see how the taper fits into the bigger picture, read what a good hiking training plan looks like or our walkthrough of building a marathon training plan.
Sources
- Bosquet L., Montpetit J., Arvisais D., Mujika I., Effects of Tapering on Performance: a meta-analysis, Medicine and Science in Sports and Exercise, 2007 (pubmed.ncbi.nlm.nih.gov).
- Mujika I. and Padilla S., research on tapering strategies in endurance athletes (pubmed.ncbi.nlm.nih.gov).
- Runner's World, how to taper for a race and why intensity is kept (runnersworld.com).
Frequently asked questions
What is a taper in training?
A taper is a planned reduction in training volume in the final stretch before a race or a big event. You cut back how much you do, usually for one to three weeks, while keeping some intensity, so that the fatigue from training clears and you arrive fresh. The fitness is already built; the taper is what lets you actually use it.
Does tapering really make you faster?
Yes, and the research is consistent. Studies of endurance athletes have found meaningful performance gains, on the order of a few percent, from a well-managed taper. A few percent is the difference between a personal best and a near miss, which is why coaches treat the taper as part of training, not a break from it.
How long should a taper be?
It depends on the event. A marathon taper is classically about three weeks, a shorter race needs less, and a big hike often does well with one to two weeks. The harder and longer the goal effort, the more total fatigue you have built and the longer the taper needed to shed it.
Should I stop training completely before a race?
No. The most effective taper reduces volume while keeping some intensity, rather than resting completely. Cutting out all hard running or hiking tends to leave you flat and sluggish. The goal is to do less, not nothing, so you stay sharp while the fatigue drains away.
Does a taper apply to hikes as well as races?
Yes. The same logic applies to a big backpacking trip as to a marathon: bank the training, then ease off in the final week or two so you start fresh. A hiking taper is usually shorter than a marathon taper, but arriving rested makes the same difference on the trail as on the start line.