MELBOURNE—We say it about many matches, but this time it was true: This one was over before it began. It was obvious from the start, and throughout, that Greta Arn, a 32-year-old Hungarian with a ...

Bouncing on her toes inside the baseline, an eager Petra Kvitova was poised to pounce on any short serve. Even while waiting to return, Kvitova looked like a woman going places. Adopting an attacking ...