Petaluma's Riley Scott does the backstroke during the Girls 200 Yard IM during the 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. Scott won the event.(Crista Jeremiason/ The Press Democrat) Petaluma's Riley Scott does the breaststroke during the Girls 200 Yard IM during the 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. Scott won the event.(Crista Jeremiason/ The Press Democrat) Maria Carrillo's Piper Brockley swims the breaststroke during the 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) Analy's Jack Murphy swims the butterfly in the Boys 200 Yard IM during the 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) Analy's Violani Auva'a swims the Girls 100 Yard Backstroke during the 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) Analy's Violani Auva'a swims the Girls 100 Yard Butterfly during the 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat) The 2015 NCS Swimming and Diving Championships held at Concord Community Pool, Saturday, May 16, 2015. (Crista Jeremiason/ The Press Democrat)