British number one Johanna Konta started her Australian Open campaign with an assured 7-5 6-2 first-round win over Kirsten Flipkens in Melbourne.
Ninth-seeded Konta, won won last week's tournament in Sydney, coped with heat rising to 35C on her way to beating the Belgian in one hour and 36 minutes.
The 25-year-old will face either Luksika Kumkhum of Thailand or Naomi Osaka of Japan in the second round.
Fellow Britons Heather Watson, Naomi Broady and Kyle Edmund play later.
They will be seeking to join Konta, Andy Murray and Dan Evans in reaching the second round.