The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
SwimSwam and Wikipedia's[3] 2019 International Swimming League article both confirm the Las Vegas Grand Final ran 20-21 December 2019 at Mandalay Bay.
Myrtha Pools' own project page describes building the temporary competition pool for this event.
Wikipedia confirms the Las Vegas Grand Final dates (20-21 December 2019) and that Energy Standard won.
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.