The top stars didn't disappoint. The women's side continued to be as unpredictable as ever. A few prominent Americans moved on. A few players were forced to retire. The action came fast and furious.
Ho hum, just another day at the U.S. Open.
Below, we'll take a look back at the completed scores thus far and break down some of the day's notable action.
Men's Completed Results
|No. 1 Novak Djokovic||6||6||6|
|No. 13 John Isner||7||6||6|
|No. 10 Kei Nishikori||6||6|
|Pablo Andujar (retired)||4||1|
|No. 9 Jo-Wilfried Tsonga||6||6||6|
|No. 28 Guillermo Garcia-Lopez||3||4||4|
|No. 22 Philipp Kohlschreiber||6|
|Michael Llodra (retired)||2|
|Pablo Carreno Busta||6||6||3||6|
|No. 23 Leonardo Mayer||6||6||6|
While the women lost a few top contenders on Thursday, the men generally avoided the upsets. The only seeded player to lose in the early matches was No. 28 Guillermo Garcia-Lopez, who lost to American Sam Querrey.
The good times might be over for Querrey, however, as up next he'll face No. 1 Novak Djokovic, who won in straight sets on Thursday with relative ease. Any concerns about Djokovic probably can be put to the wayside for now, as Kevin Mitchell wrote for The Guardian:
The world No 1 did have trouble keeping upright in Cincinnati two weeks ago, before exiting early, echoing similar balance problems he had in Shanghai last year, and there was some concern that the man who pays such close attention to his diet and preparation might have been having undisclosed health problems. Now, though, his feet are back on the ground.
'It was very windy but I managed to adjust to the conditions which were not easy for me or my opponent, and to stay solid,' he said.
Right now, it would appear the wind is about the only thing that is going to stand in Djokovic's way.
American John Isner and his big serve advanced to the next round as well. As ESPN Tennis tweeted, it's been smooth sailing thus far:
Not too shabby.
No. 10 Kei Nishikori probably would have won his match against Pablo Andujar in straight sets if Andujar hadn't retired before the match concluded, the second man to retire on the day after Michael Llodra was also forced out of action.
In a year without Rafael Nadal and during a time of struggle for Andy Murray, Nishikori is a sleeper to watch at this tournament. He could be primed for a major breakthrough in New York.
Women's Completed Results
|No. 16 Victoria Azarenka||6||6|
|No. 1 Serena Williams||6||6|
|No. 8 Ana Ivanovic||5||4|
|No. 27 Madison Keys||6||6||5|
|No. 3 Petra Kvitova||6||6|
|No. 23 Anastasia Pavlyuchenkova||4||7||3|
|No. 23 Sam Stosur||6||3||6|
|No. 11 Flavia Pennetta||6||6|
|No. 16 Carla Suarez Navarro||6||6|
|No. 29 Casey Dellacqua||4||6||6|
|No. 30 Barbora Zahlavova Strycova||4||6||6|
Two more top contenders were lost on the women's side of the draw on Thursday, as No. 8 Ana Ivanovic fell to Karolina Pliskova and No. 24 Sam Stosur was defeated by Kaia Kanepi.
Ivanovic talked about the match afterward with Lynn Zinser of The New York Times:
It was very tough out there for me today. I really struggled to find my rhythm and made way too many unforced errors. Yeah, it was just really bad day.
It’s very disappointing. It’s never easy, you know, to finish, and especially this early. I was really hoping I can make a good run.
The top contender, however, didn't struggle one bit, as Serena Williams demolished Vania King, 6-1, 6-0. It took her just 56 minutes to finish King off, blasting 25 winners and looking ever the comfortable front-runner in this tournament.
The only concerning aspect of the performance was her five double-faults, even if she often responded with one of her four aces. Still, that sort of lapse in concentration could hurt her as the tournament goes on.
But that's nitpicking on an afternoon when Williams was so dominant.
Other contenders to advance included No. 16 Victoria Azarenka, No. 3 Petra Kvitova and No. 11 Flavia Pennetta, all winning in straight sets.