Meet Wimbledon's latest sensation, Julia Boserup

WIMBLEDON -- Marcus Willis, a club pro ranked No. 772 in the world, was the early underdog darling of this tournament before going out to Roger Federer in the second round.

Well, let us introduce you to Julia Boserup, a 24-year-old Californian who has done Willis at least one better. On a day when American singles players dominated at the All England Club, Boserup was the longest of shots to arrive in the third round.

Boserup stunned No. 7 seed Belinda Bencic, who retired trailing Boserup 6-4, 1-0, citing a left wrist injury.

After entering Wimbledon with zero career Grand Slam victories, the No. 225-ranked Boserup now has two.

"It's been really special to be here in Wimbledon," she told four reporters in a small interview room afterward. "During my matches, I stop and look around, thinking 'How cool is this?'

"My mother flew in after I qualified. And she's taking pictures of all the flowers."

Coming into Wimbledon, playing mostly ITF Future tournaments, Boserup had earned a total of $28,440. Now, she's guaranteed at least $106,400 -- almost exactly half her career earnings. After failing to qualify in six WTA-level events, including the Australia Open and the French Open, Boserup broke through here.

She won three qualifying matches -- all in straight sets, over Jennifer Brady, Jessica Pegula and Barbara Haas -- to advance to her first main draw at a Grand Slam. In the first round, she needed three sets to eliminate fellow qualifier Tatjana Maria of Germany.

Next up is the winner of the No. 32 Andrea Petkovic-Elena Vesnina match.

Boserup's quick tennis biography: She was born in California to two Danish parents and began working with famed coach Robert Lansdorp at the age of 6. She moved to Boca Raton, Florida, at 13 to work with the USTA and won the prestigious Orange Bowl as a 17-year-old wild card. She beat then-16-year-old Christina McHale, a WTA top-100 regular, in the final.

She turned pro in September 2010. And then a series of injuries -- including stress fractures in both feet -- set her back a few years. And now, her Wikipedia page will have to be updated.

She insisted that she'll go back to playing $50,000 events after Wimbledon.

"On week doesn't change everything," she said. "It's all about developing my tennis."

It's a good thing she has Friday off, because she's got homework due.

She's going to practice for only an hour or so and then maybe spend 30 minutes in the gym. That's because she is closing in on her online degree at Penn State, with a major in psychology and a minor in finance.

"It's an accounting class," she explained. "Spreadsheets are due on Sunday. If anyone's good at accounting, let me know."

And she smiled the smile of someone who has already won the lottery and is playing with house money.