The No.10-seeded Petrova came out just about as fast as a player could, winning nine of the first 10 games to build a 61 30 lead; the No.21-seeded Goerges held then broke back to close to 3-2 and get the second set back on serve, but Petrova squeaked out the next two games then ended it, 61 62.
The match was much tougher than the scoreline indicates - it lasted an hour and a half. But Petrova was far sharper on the biggest points, going six-for-six on break points - Goerges was one-for-six.
"It just took me a couple of games to get into the match - I felt like the court was slower than the outside courts maybe, so I felt like I mis-timed it a little bit in the beginning," Wozniacki said. "But then once I got into it I felt like I played some good tennis. I was feeling really comfortable out there.
"In general it was a very good match for me, I think."
Wozniacki's father is generally at the forefront of her matches - he is her coach, after all, and is called onto the court now and then - but another member of her family who has traditionally been at her matches, her brother, has not been around as much lately. She was asked about him afterwards.
"He's in Denmark at the moment," Wozniacki said of her brother, Patrik. "He's there with his girlfriend working a little bit here and there. He used to travel quite a lot - quite a bit last year - but before that he never really travelled that much. So he always had his own thing going. That's good for him, not just to travel around. He enjoyed it for a long period, but now I think he just wants to do his own thing.
"He's going to do the FIFA license now. I don't know when the exam is, but apparently it's very tough to pass it. Hopefully he'll have that FIFA agent license so that he can do that as a full-time job.
"He's enjoying life and having a good time. I'll probably see him after I'm done here in the US."
Wozniacki is only 22 years old but already has a wealth of experience behind her - 20 WTA titles, 67 weeks at No.1 in the world - she was also asked whether she felt something like a veteran on tour.
"I've definitely started feeling like one of the more experienced players, more as a veteran, even though I'm still only 22," she replied. "When you've been somewhere seven times already like I have been here at Indian Wells, it just puts things in perspective. I've been on tour for so long and played so many matches, and it's great. It's just great that I've been able to go so strong in tennis for so long."
Wozniacki leads Petrova in their head-to-head, 4-2, but in their last meeting - which was in fact their only meeting in 2012, and in the last match of the WTA season, too - Petrova dominated, 62 61.