She had done catch-up drill every week for two years. Twice a session, four lengths each time, which is somewhere north of eight hundred lengths of one drill.
Her catch had not changed. Not slightly. The video looked the same as the video from two years earlier, same dropped elbow, same hand slipping through the front of the stroke. She was genuinely baffled, because she had done the work.
What she had done was eight hundred lengths of practising the error with her arms in a different position.
Repetition makes a movement permanent. It has no opinion about whether the movement was any good.
The Thing Everybody Gets Wrong
The received wisdom is that a movement becomes automatic through repetition, and that is true. What gets skipped is the second half: the movement that becomes automatic is whichever one you actually performed, not the one you intended.
So an athlete repeating a stroke with a dropped elbow several thousand times a year is not neutral. They are getting better at dropping the elbow. The pattern is reinforced with every length, which is why an adult-onset swimmer with three years of unexamined mileage is often harder to change than a beginner.
Volume is not practice. Volume is rehearsal, and rehearsal of an error is worse than doing nothing.
The Three Things a Drill Needs
A specific target. Not "work on my catch". Something a body can execute: keep the elbow above the wrist through the first third of the pull. One instruction, small enough to hold for twenty five metres. If your intention is a paragraph, you will not do it.
Feedback that arrives quickly. This is what was missing for my athlete, and it is missing for almost everybody. She could not see her own elbow. She had no way of knowing, length by length, whether the thing she intended was the thing she did, so she practised her assumption rather than her stroke.
Attention. Deliberate practice is tiring in a way mileage is not, because it requires you to be present for every repetition. Twenty five metres of genuine attention on one cue beats four hundred metres of drilling while thinking about work. Which also means it cannot be sustained for an hour. Fifteen focused minutes is a lot.
Why Stroke Count Is the Cheapest Tool You Have
Most triathletes have no coach on the side and will not film themselves, so the feedback condition quietly gets dropped and the drill becomes decoration.
Stroke count solves this for free. Count your strokes per length at a fixed, easy pace. It is one number that responds to almost everything that matters: body position, catch, timing, how much you are slipping. Make a change, and if the count drops at the same pace and effort, something real improved. If it does not move, whatever you did was cosmetic.
It will not tell you what changed, which is a genuine limitation. But it tells you whether anything changed at all, and that single bit of information is the difference between practice and hopeful repetition.
The other free tool is a phone in a waterproof case propped at the end of the lane. Two minutes of footage will tell you more about your catch than two years of imagining it.
Where to Spend the Attention
Since focused attention is the scarce resource, do not spread it.
Pick one fault. The biggest one, which for most triathletes is body position or the catch and almost never the kick. Work on it for a block of weeks, with one cue, checked against a number or a video, until it holds under fatigue. Then move on.
An athlete cycling through six drills a session is doing none of them. An athlete who spends six weeks on the front of the stroke, and can prove it changed, has bought something permanent.
And there is a point where drilling stops paying. Once the pattern holds at easy pace, the work is making it survive race pace and fatigue. That is not a drill problem any more. That is a set problem, and it needs a clock.
The Challenge
Next swim, count your strokes on four lengths at an easy, honest pace and write the number down.
Then pick one cue, the smallest you can name, and do four more lengths holding it. Count again.
If the number did not move, you have learned something useful: the thing you have been practising for years is not the thing you thought you were practising.
