Swimming Frenzy

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Across
  1. 3. - A person who is proficient in sports and other forms of physical exercise.
  2. 4. - A person who has beaten all rivals in competitions.
  3. 6. - A swimming stroke on your back.
Down
  1. 1. - A series of athletic contests held once every four years in a different country each time.
  2. 2. - Cause to be under water.
  3. 5. - A kick in which the legs move up and down together, with the knees bent on the upswing.