Two Australian teams have smashed World Records during day one of the Commonwealth Games, with our athletes notching up a whopping 15 medals.
We won three gold in the Velodrome up in Brisbane on Thursday, with a new record set in the men's 4000m cycling team pursuit, while the women placed first in the team sprint and team pursuit as well.
Australia also picked up nine medals in the pool on the Gold Coast.
Mack Horton claimed gold in the men's 400m freestyle, a repeat of his efforts in Rio, while the women's 4x100m freestyle relay team capped off the day by placing first and smashing the world record in the process.
Shayna Jack, Emma McKeon and Bronte Campbell put the team in front, but it was anchor Cate Campbell's efforts that brought it home for the Aussies and set a new World Record of 3:30.05s.
Cate also recorded the fastest ever lap in a women's relay event, doing her leg in 51 seconds flat.
After day one we were second on the medal tally with five gold, four silver and six bronze, just behind England.