Gold Coast: Australian boxer Taylah Robertson has become the first medallist of the 21st Commonwealth Games without even stepping into the ring after she got a bye straight into the 51kg category women's semi-finals.
Campbell anchored the Australian quartet, which also included her sister Bronte, Shayna Jack and Emma McKeon, to clock three minutes, 30.05 seconds and beat their previous record of 3:30.65 from the Rio Olympics.
Australia's 4x100-meter women's freestyle relay team has done it again, breaking its own world record on the opening night of the swim program at the Commonwealth Games.
England's James Guy, who pushed the Aussies all the way, finished third. England took the bronze, more than eight seconds behind Australia.
It was a satisfying return for Campbell, who had been a hot favorite to win gold in both the 50m and 100m freestyle at the Rio Games, but finished outside the medals in both. "When we set the world record (at Rio) it was a really quick time and we weren't expecting to get near it tonight".
"I probably feel more emotion here than in Rio because the whole crowd is cheering for you", Horton said.
Horton added a Commonwealth gold to his Olympic title, easily winning the 400 in 3:43.76, about 1.5 seconds ahead of Australian teammate Jack McLoughlin. "Ten thousand people cheering for you is pretty unreal".
From Left to Right: Australia's Ashlee Ankudinoff, Annette Edmondson, Alexandra Manly, and Amy Cure pose with their gold medals in the women's 4000m team pursuit finals track cycling event during the 2018 Gold Coast Commonwealth Games at the Anna Meares Velodrome in Brisbane on April 5, 2018. "I could hear them roaring as I was coming down the last 25m".
Wilmott, beaten by Miley in the 2014 Glasgow final, fought back tenaciously in the final freestyle leg to pip the Scot by 0.26secs with Australia's Blair Evans third.
"I've raced against Hannah in every meet and I've been second every time", Willmott said.
Some 6,600 athletes from 71 nations and territories - all of them former British colonies that now make up the Commonwealth of Nations - are taking part in 18 sports (seven para-sports) for a chance to pick up a total of 275 gold medals.