First off, the idiotic NBC, Comcast, stranglehold on the Olympic video is ridiculous and needs to be addressed.
See the video here
We're going to look at the final 5 seconds of the race. Phelps is in lane 6, and Le Clos in lane 5. Looking at the video you can see Phelps and Le Clos are basically tied.
What Happened?
From Phelps, "It's probably the finishes that I've done in workout ended up coming out here," Phelps told NBC's Bob Costas in response to a question about the disappointment of losing the lead. "There were times where I would go kind of slow into the wall in workout or touch kind of lazy, and it showed."
And he's right. Look at the video again. You can see how Phelps' last stroke is a little too far away from the wall. Competitive swimming convention says that you should not take another half stroke but should kick into the wall when you are that close. Phelps did the right thing, kind of.
Watch the video again and you'll see that Le Clos takes one last stroke just a .05 second after Phelps begins his last stroke, but that makes all the difference. Le Clos' last stroke finishes with his hands just inches away from the wall, not yards, resulting in his .05 out-touching Phelps.
The Technical Takeaway: Timing and Efficiency
The very simple thing that Phelps did wrong was not timing/gauging his strokes to match the distance to the end of the pool. When done well and correctly, the fly finish should match Le Clos' perfectly. When you haven't counted or adjusted your strokes accurately, you get a finish like Phelps, which under the circumstances at that point was done with precision, was not perfect as it should have been.
Rightly so, Phelps attributes it to lazy practice finishes. He is right. The bad habits learned in muscle memory at practice manifest themselves in competitions.
A Coach's Perspective: Why Practice Matters
This race is a perfect, high-stakes example of how critical consistent technique is. Elite athletes often believe that their natural talent will carry them through, but the truth is that the small, repeatable habits formed during practice—the 'muscle memory'—are what define performance under pressure.
When we coach, we aren't just teaching strokes; we are teaching efficiency and precision. For a butterfly finish, this means:
- Stroke Count Calibration: Knowing exactly how many strokes you need for the remaining distance, adjusting your tempo accordingly.
- The Final Kick: Understanding when to transition from propulsive swimming to the final, powerful kick into the wall.
- Maintaining Core Tension: Even when fatigued, the body must remain streamlined and tight to maximize speed until the very last moment.
The lesson here is clear: If you want to perform at the Olympic level, your practice needs to simulate that pressure. Don't just swim laps; drill specific race segments and focus on maintaining perfect technique when you are tired.


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