British number four Harriet Dart came from behind to beat Australian wildcard Priscilla Hon and reach the second round of the Brisbane International.
The 22-year-old, who progressed from the qualifying rounds, won 1-6 6-3 6-4.
Dart will play Latvian eighth seed Anastasija Sevastova or Australia's Daria Gavrilova next.
"I'm really pleased to get the win. Priscilla played really good and it took me a while to get out of the blocks," Dart said.
"Everyone is fighting for every point so I had to keep doing what I was doing."
Dart started the year ranked 307th in the world but will end it in 149th, having won ITF titles in Altenkirchen and Oslo.