Roddick, 30, who yesterday announced his decision to retire from tennis after the tournament, advanced to a third-round match against Fabio Fognini of Italy with a 6-3, 6-4, 6-0 defeat of Tomic in 87 minutes in a night match at the National Tennis Center in New York.
Roddick, the No. 20 seed from the U.S., claimed his only major championship in New York in 2003. He is the last U.S. man to win a Grand Slam singles title.
“That was so much fun, thank you guys,” Roddick said to the crowd in an on-court interview. “I’m going to try to stick around a little longer.”
British teenager Laura Robson posted her second straight upset win, knocking off No. 9 seed Li Na of China in three sets, while men’s defending champion Novak Djokovic advanced in straight sets.
Women’s top seed Victoria Azarenka of Belarus won 6-0, 6-1 last night against Zheng Jie of China, the No. 28 seed. Third seed Maria Sharapova of Russia won 6-1, 6-1 in 58 minutes yesterday against Stanford University senior Mallory Burdette.
The 18-year-old Robson defeated Li 6-4, 6-7 (5-7), 6-2 in Louis Armstrong Stadium. Robson upset No. 23 seed Kim Clijsters two days ago in Clijsters’s final singles match before retiring.
The win made Robson the first British woman to reach the fourth round of a Grand Slam tournament since Samantha Smith at Wimbledon in 1998. Ranked 89th on the WTA tour, she next faces a fourth-round match against defending champion Samantha Stosur.
Stosur, the No. 7 seed from Australia, beat Varvara Lepchenko, the 31st seed from the U.S., 7-6 (7-5), 6-2 in Arthur Ashe Stadium, with the opening set taking 59 minutes.
“She’s obviously full of confidence and had two very, very good wins,” Stosur said of Robson at a news conference. “I definitely can’t go into that match lightly. I have to go out there and be really on my game and ready to play.”
Sharapova, the 2006 champion, has lost just seven games in her three victories this week. She next plays Russia’s Nadia Petrova, the 19th seed, in the fourth round.
Burdette, 21, an American amateur who was playing in her first Grand Slam event, was a wild-card invitee to the year’s final major tournament.
Djokovic, the No. 2 seed from Serbia, beat Rogerio Dutra Silva of Brazil 6-2, 6-1, 6-2, making 14 unforced errors compared to 36 for Dutra Silva. Reaching the third round for the seventh time in as many visits to the U.S. Open, Djokovic will face Julian Benneteau of France, seeded 31st, who won in four sets against 18-year-old American Dennis Novikov.
David Ferrer, the men’s No. 4 seed from Spain, beat Igor Sijsling of the Netherlands 6-2, 6-3, 7-6 (14-12), needing six match points to move into the third round.
All of the women’s singles matches today -- the fifth day of the two-week tournament -- were in the third round. The men were playing second-round matches.
Seven of the 12 remaining U.S. men were in action today. The last time as many American men reached the second round was 1996, when there were also 12.
No. 9 seed John Isner had 23 aces in a four-set victory against Jarkko Nieminen of Finland. Brian Baker lost in straight sets to Janko Tipsarevic, the No. 8 seed from Serbia. Wild-card entry Steve Johnson, the two-time defending National Collegiate Athletic Association champion from the University of Southern California, beat Ernests Gulbis of Latvia. Qualifier Bradley Klahn lost to Richard Gasquet, the No. 13 seed from France.
Juan Martin Del Potro, the 2009 U.S. Open winner from Argentina and the No. 7 seed, defeated Ryan Harrison of the U.S. in four sets.
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