Both finals were all-South Australian affairs as Peirce defeated state teammate Amelia Whinney 4&3, while Buchanan got the better of Kooyonga's Joseph Hodgson, who earned stroke play honors alongside Peirce on Wednesday.
"It was a lot of fun. It's been a while since it was four South Australians in the final so it was a good day," Peirce said.
"It was a little bit weird. It's probably the first time I've played against Amelia even though we're from the same state but it was a lot of fun.
"I won the Rene Erichsen Salver in March so it's pretty cool to have both South Australian events in the same year. It's a good feeling."
For Buchanan, this year's Australian Amateur runner-up, the triumph proved to be a drought breaker.
"I hit it pretty solid all day," he said. "Similar to the first rounds but I just kept my lead. I went one-down early but once I hit the lead I held onto it and grabbed a few holes in a row to finish it 3&2.
"I've come runner-up at this tournament before and I've had a few runner-ups before so it's very nice to get one over the line. Hopefully, it's the start of a few more wins."


