Breakout
From Openwaterpedia
noun - The breakout is the final part of the freestyle flip turn or backstroke, butterfly or breaststroke push off a wall of a swimming pool. A breakout is the time and distance spent underwater from the point of pushing off the wall until the point when the body breaks the surface of the water.
Usage[edit]
Her breakouts are outstanding and enable her to catch up with swimmers slightly ahead of her.