Recognizing flaws in a swimming stroke is the first step to fixing them. Often, what feels right in the water looks very different on video.
This article breaks down a video analysis of a swimmer with four common but critical freestyle mistakes. By learning to spot these errors, from a deep kick to a crossover pull, you can identify them in your own swimming and use the suggested drills to correct them.

One of the basic skills of any student is the ability to recognize if something is not done the right way. The recognition of stroke flaws is the beginning of an efficient swimming style. Below is a short freestyle swimming video that highlights four main problems. These are the biggest hurdles preventing this swimmer from getting to the next level.
If we look at the swimmer from the front, the streamlined image is disturbed by a very deep kick that protrudes behind him. This causes [unnecessary resistance](/blog/streamline-explained-how-forces-influence-swimming(.

The Fix: The kick should be small and shallow. It should come out of the hip with the knee only ever slightly bending while it gives into the pressure of the water.
Your hands should point in the direction you want to go. In this case, the swimmer's arm deviates from the long axis, crossing over the center, especially when breathing. This causes the body to snake through the water.

The Fix:
The front catch is an advanced skill. The swimmer in the video shows signs of an initial catch but then drops his elbow, failing to hold the water. He ends up pushing down rather than pulling back.

The Fix:
Many beginners struggle with keeping their body horizontal. In the video, you can see the swimmer's lower back fall below the surface every time he breathes. This creates an uphill swimming position.

The Fix:
I hope you learned something useful in the analysis and have some material to work on in your swim routines.
Master these four areas (kick depth, alignment, catch, and body position) and you will be well on your way to a faster, more efficient stroke.
Video analysis is crucial because what you feel you are doing in the water is often different from what you are actually doing. Seeing your stroke allows you to spot flaws you might otherwise miss, making it much easier to correct them.
A deep kick creates significant drag, acting like a brake that slows you down. The kick should be small, shallow, and driven from the hips, staying within the body's streamline rather than dropping deep below it.
A crossover happens when your hand crosses your body's centerline during the entry or pull. This causes your body to snake side-to-side. To fix it, focus on keeping your hands wider (shoulder-width apart) and use drills that isolate shoulder rotation without crossing over.
A dropped elbow means you are pulling with just your hand, not your forearm. To fix it, practice single-arm drills and focus on keeping your elbow high near the surface while your forearm drops down to catch the water.
This is usually caused by lifting your head too high to breathe or having tight ankles. To fix it, keep your head low (one goggle in the water) and focus on pressing your chest down, which will naturally lift your hips and legs.