Young, up-and-coming Charolais breeders took out supreme exhibit during their second-ever showing of the breed.
The title was awarded to Golden Rose Charolais stud, Macorna, for their 16-month-old heifer, Golden Rose Fairy Floss.
Golden Rose Charolais stud co-principal Murray Van Der Drift said he and partner Erin Ferguson really liked their winning heifer but never expected to win.
"She's a very strong cow and [winning] is really exciting," Mr Van Der Drift said.
The couple exhibited 27 animals at the show, with Charolais, Speckle Park and Limousin cattle.
Ms Ferguson said showing so many different breeds of cattle made it difficult to stop and process the win, but they looked forward to reflecting as they got home.
Grand champion bull was awarded to junior exhibit Windjammer Tim Tam, from Windjammer Simmental and Charolais stud, Flinders, exhibited by Jaime Vosper.
Charolais judge former former Charolais Society of Australia president David Bondfield, Dalveen, Qld, said it was great to see two junior animals in the top line up for the breed.
Mr Bonfield said both cattle were a good example of the genetics moving through in young animals at the moment.
"I really liked the function on these two animals, they're not extreme in any way," he said.
"They sit right in that optimum growth pattern to suit more markets, they've both got fat cover, lots of muscle, are extremely sound, have great front ends and are well put together."
He said the supreme champion was a "sweet heifer to watch", with an angular feminine build that was very three-dimensional.
"She plants her feet squarely every time and has a really strong top," he said.
He said the top bull had a deep flank, with strong hips and loin.
"The bull is a commercial-type bull, with an extra bit of length, and is beautifully put together," he said.