The event is the selection trails for the 2019 World Aquatics Championships in Gwangju, South Korea.
[1] Following Australia's performance at the 2016 Rio Olympics where 29 medals were won and finishing 10th on the medal tally, Swimming Australia announced in the February 2017 that the timing of the selection trails would be modified.
This will be now changed to follow the American model where the trails are held six weeks before.
[2] A Para Grand Prix will be held in conjunction with the trials on the 13 to 14 June 2019.
[3] The legends relay was a mixed 4 × 50 m freestyle event swam on the fourth night of the meet.