SHARECOMMENTMORE

The 4-time Olympic medalist practices keeping her head steady during her signature stroke, the backstroke, by balancing a water bottle on her forehead. It can help shave off precious tenths and hundredths of a second during races.

She owns the world record in the 200 meter backstroke (2:04.06).

She competed in two individual races and two relay races Tuesday, winning handily over Highlands Ranch and Cherry Creek in each race.