As the ball travels to the left fielder in the air, the base runner immediately returns to the base. She places her left foot on the base and opens her hips slightly so she can look over her left shoulder towards the ball. She's in an athletic position ready to push off and sprint home.

As the ball enters the left fielders glove, the base runner just starts pushing off the base with her left foot. She remains in a low athletic position.

The base runner completes getting her hips and shoulders square to home. She remains in a low athletic position.