Andrew Sheaff (@AndrewKSheaff)

Here’s a simple way to ensure consistent technical execution during butterfly training. Rather than nagging swimmers about how they’re moving through the water, have swimmers count their strokes and ask them to keep the number the same from lap to lap, repetition to repetition. ...

In most cases sprinters get deep to go fast. They do so because they have to create as much propulsion as possible in as little time as possible. They create a lot of propulsion by using a big surface area to move a lot of water backward over a large range of motion. ...