Why Swimmers Feel Flat at Taper (and Why It's Normal)

Here's a scene every swim family knows: it's the week before the big meet, training has eased off, and your swimmer comes home convinced something is wrong. Stroke feels off. Legs feel heavy. The clock looks slow. Is the taper busted?

Short answer: no — feeling flat at some point during taper is completely normal. It's counter-intuitive and unsettling, but it's part of the process. And the science behind it is genuinely reassuring. Let me walk you through it so neither you nor your swimmer panics at the worst possible moment. 👇

🔬 Why does my swimmer feel flat during taper?

Because how they feel in the water has surprisingly little to do with how fast they'll race. A study (Ribeiro et al., 2023) measured swimmers' force production at every stage leading into a 100 freestyle time trial — before the big training block, after it, during taper, and after.

When taper began, the swimmers' muscles were actually weaker than when the training block had started. Hard training did its job and ground them down. And here's the kicker: even after two weeks of tapering, those force numbers still hadn't fully returned — yet the swimmers went about 3% faster. They raced fast without ever feeling 100%.

Taper isn't about how you feel in the water. It quietly rebuilds the things you can't see — fast-twitch fibres, contractile speed, glycogen stores, and the microscopic damage from months of brutal main sets.

🧬 What taper is really doing

While your swimmer is staring at the clock in disbelief, repair is happening at the cellular level. That heavy, flat feeling is the body in the middle of a renovation — and renovations look messy right before they look great. The flatness is a sign the work is happening, not that it has failed.

So the instructions are simple, even if they don't feel reassuring in the moment: keep recovering, protect intensity in the little bit of fast work that remains, sleep like it's your job, and follow the plan. The legs come back. As Michael Phelps' longtime coach Bob Bowman puts it: “You do not have to feel good to swim fast.”

🧠 What swim parents can do

Your job in taper week is mostly to keep the mood calm. When your swimmer spirals — “I'm so slow, my taper is ruined” — you now have the honest, science-backed reassurance: feeling flat is normal, and it doesn't predict the race. Protecting their confidence through that window is its own skill, and it's a big part of what we coach — both in the free Skool group and at the Swimpros Performance Accelerator, Europe's most popular performance swim camp right now.

❓ Swim parent FAQ

What is tapering in swimming?
A planned reduction in training load in the weeks before a big meet, so the body repairs and the swimmer races at peak speed. Reduce volume, protect intensity.

Why does my swimmer feel slow and flat during taper?
It's normal. Muscles can be weaker as taper begins and don't fully recover even after two weeks — yet swimmers race faster, because taper rebuilds things you can't feel.

Is feeling flat a bad sign?
No. How a swimmer feels in practice is a poor predictor of how they'll race. You do not have to feel good to swim fast.

What should a swimmer do when they feel flat?
Keep recovering, protect intensity, prioritize sleep, and stay calm. The flat feeling usually lifts by race day.

Next time your swimmer feels slow and heavy the week before the big one, you'll know the truth: that flat feeling is the taper working. The speed shows up on race day. 🟡