NEW YORK, NY, USA - Just days before hitting the streets for the New York City Marathon, Caroline Wozniacki met the press, answering questions about everything from how nervous she is, how training for this has helped her tennis and, perhaps most importantly, the charity she's running for.
Wozniacki will be running for Team For Kids, a committed group of runners from all around the world who add meaning to their miles by raising funds that fuel New York Road Runners youth programs.
"We raise money for kids who have no - or very limited - access to sports," Wozniacki said.
"We make running groups for them so they can go out and get an active lifestyle, enjoy it and have fun. We also teach them about nutrition and healthy living. All of that has shown a big increase in happiness for kids - they get a healthier body, healthier mind, better grades in school. It all goes together.
"I think it's such a great charity. And we feel like we have to start early - nowadays we have all the computers and technology, but it's very important the kids still go outside, play and have fun."
As for the actual New York City Marathon, it's been a few months now since Wozniacki announced she'll be running it. Back then she was full of excitement for it - but have any nerves kicked in?
"I am a little nervous. This is the farthest I'm going to run so far," Wozniacki said. "But I think it's going to be an unbelievable experience. I love New York, and the New York City Marathon has always been on my bucket list, and it's a perfect time for me as well - it's after my tennis season is done.
"And because I haven't been active enough during the year, I thought, 'Why not start off my vacation with running a marathon!" she joked. "So it's going to be great. I'm really exited about it. Obviously I'm a little nervous about it, though, and I'm probably not going to get much sleep the night before!"
She's been shielded from those nerves on the tennis court, though - since she started training for the marathon she's been playing some of the best tennis of her career, reaching her second Grand Slam final at the US Open, breaking back into the Top 10 and, most recently, reaching the semifinals of the BNP Paribas WTA Finals Singapore presented by SC Global, very nearly beating Serena Williams.
"It's definitely been helping me a lot," Wozniacki said. "I know that once I get into a third set on the tennis court, I can just keep going. I feel like a machine out there. It's nice to know I can be out there for three plus hours and not get tired. It's also helped me mentally - going out to run, it clears your head and just makes you feel good in general. So yeah, I feel like I've been playing very well lately.
"People are actually starting to ask me if the marathon is going to be a yearly thing. I think I need to finish this one first, and then I need to go and figure out how I'm feeling afterwards!"
And what are the former World No.1's goals for the marathon?
"I have a time in mind. I have a time that I want to finish within. But I'm not going to push myself too hard - I don't want to get injured. But honestly, I just want to finish. That's the main goal, really.
"But because I'm such a competitor, I always want to have some kind of goal in mind."
Wozniacki does have one other goal.
"I'm going to go out there and enjoy it. I'm going to take in the whole experience," she said.
"I think this is something I'm going to take with me for years and years to come."