MELBOURNE, Australia – Agnieszka Radwanska kept her Asia-Pacific winning streak going in Melbourne – the World No.4 needed an hour and 20 minutes to dispatch Christina McHale in straight sets and close out the day’s action on Margaret Court Arena.

“The first match is always tough, always tricky, especially with the conditions here every day being so different,” Radwanska said after the win. “I’m just very glad I could win that match in two sets.”

The unseeded American came out of the gates firing off her arsenal of booming groundstrokes, but it was the serve that turned out to be McHale’s downfall. Radwanska broke McHale’s serve seven times in the match – four in the first set and three in the second.

Once the finish line came into view, Radwanska put the pressure on McHale and drew out the errors – 28 to Radwanska’s 14. Radwanska fired off two aces in the final game to close out the match 6-2, 6-3.

“I really feel good here in Australia, very comfortable on the court,” Radwanska said. “I love the crowd, I’m really playing my game and enjoying tennis – I think that’s the most important thing.”

Up next for the reigning WTA Finals champion is either Eugenie Bouchard – whose recent renaissance makes her a tricky second-round opponent – or Serbia’s Aleksandra Krunic, who Radwanska beat earlier in the year en route to her Shenzhen title. Radwanska leads both players 1-0 in their head-to-head series.