It was an explosive day at the 2013 U.S. Open on Saturday, as a barrage of upsets took Billie Jean King Tennis Center by storm.
Others, well, weren't so lucky.
Here's a look at how all the action unfolded.
Note: Statistics and information are courtesy of USOpen.org, where complete results can also be found.
2013 U.S. Open Results for Day 6
|Rafael Nadal (2)||Ivan Dodig||6-4, 6-3, 6-3|
|David Ferrer (4)||Mikhail Kukushkin||6-4, 6-3, 4-6, 6-4|
|Milos Raonic (10)||Feliciano Lopez (23)||6-7, 6-4, 6-3, 6-4|
|Janko Tipsarevic (18)||Jack Sock||3-6, 7-6, 6-1, 6-2|
|Philipp Kohlschreiber (22)||John Isner (13)||6-4, 3-6, 7-5, 7-6|
|Richard Gasquet (8)||Dmitry Tursunov (32)||6-3, 2-6, 6-4, 4-2, Ret.|
|Tommy Robredo (19)||Daniel Evans||7-6, 6-1, 4-6, 7-5|
|Roger Federer (7)||Adrian Mannarino||6-3, 6-0, 6-2|
|Ana Ivanovic (13)||Christina McHale||4-6, 7-5, 6-4|
|Simona Halep (21)||Maria Kirilenko (14)||6-1, 6-0|
|Victoria Azarenka (2)||Alize Cornet (26)||6-7, 6-3, 6-2|
|Alison Riske||Petra Kvitova (7)||6-3, 6-0|
|Flavia Pennetta||Svetlana Kuznetsova (27)||7-5, 6-1|
|Roberta Vinci (10)||Karin Knapp||6-4, 6-3|
|Camila Giorgi||Caroline Wozniacki (6)||4-6, 6-4, 6-3|
Rafael Nadal Advances to Fourth Round
Rafael Nadal apparently likes winning.
Nadal came into the 2013 U.S. Open with a 53-3 record and nine singles titles this year, and he has yet to lose a set through three rounds in New York.
Nadal's match against Ivan Dodig on Saturday perhaps lasted a bit longer than the 27-year-old Spaniard would have liked (a little over two hours), but he still won, 6-4, 6-3, 6-2.
In the process, Nadal won 80 percent of first-serve points, 74 percent of second-serve points and 82 percent of net points. He also notched 37 winners.
The 12-time Grand Slam singles champion will take on Philipp Kohlschreiber (more on him in a bit) in the fourth round.
Nadal is 9-1 lifetime against Kohlschreiber, but the German did defeat Nadal in Halle last year.
Roger Federer Takes Care of Business
Roger Federer appears to have found his groove after a bumpy season by his standards.
After battling the red-hot Rafael Nadal at the Western & Southern Open, Federer has won his first three matches at the 2013 U.S. Open in straight sets, including a blistering victory against Adrian Mannarino on Saturday that took all of 78 minutes.
In the match, Federer won 92 percent of first-serve points and 79 percent of net points while registering 33 winners and seven aces.
Mannarino didn't have a whole lot of unforced errors in the match (14), so the fact that Federer was able to dispose of the 25-year-old Frenchman so quickly was eye-opening.
Federer hasn't faced a top-tier opponent yet in the 2013 U.S. Open, but his level of play has been much-improved regardless.
Things could get interesting moving forward.
There had been several upsets at the 2013 U.S. Open before Day 6, but Saturday blew the door open.
The women's side featured the most upsets.
Not only did No. 21 seed Simona Halep defeat Maria Kirilenko—in dominating fashion, no less—young American Alison Riske routed No. 7 seed Petra Kvitova, and Flavia Pennetta—who ousted No. 4 seed Sara Errani in the second round—pulled off another upset against No. 27 seed Svetlana Kuznetsova.
Halep is having a career year. The 21-year-old Romanian was 39-14 with four singles titles this year headed into the U.S. Open. That included victories over Agnieszka Radwanska, Marion Bartoli, Caroline Wozniacki, Petra Kvitova, Samantha Stosur, Roberta Vinci and Kirsten Flipkens.
Against Kirilenko on Saturday, Halep won 79 percent of first-serve points and 66 percent of return points while notching 13 winners and three aces to eight unforced errors and one double fault.
As for Riske, she was 36-21 this year headed into the U.S. Open, but she had lost to Kvitova in the pair's only career matchup in New Haven.
No matter. Riske won 85 percent of first-serve points and 54 percent of return points while committing only seven unforced errors.
By comparison, Kvitova committed 27 unforced errors and posted seven double faults in the match. She also won only 24 percent of return points.
On top of that, Flavia Pennetta shocked another opponent in No. 27 seed Svetlana Kuznetsova. The 31-year-old Italian, who beat Errani in the second round, won 74 percent of first-serve points and 64 percent of net points while posting 16 winners in the straight-sets victory.
Kuznetsova—who came into the match with a 5-0 career record against Pennetta—committed 35 unforced errors.
On the men's side, No. 13 seed John Isner was upset by No. 22 seed Philipp Kohlschreiber in 2 hours, 47 minutes.
Isner was 32-19 with two singles titles this year headed into the U.S. Open and owned a 3-1 career record against the 29-year-old German, but Kohlschreiber defeated Isner at the U.S. Open for the second year in a row.
Kohlschreiber won 77 percent of first-serve points and 83 percent of net points while posting 38 winners and six aces.
Isner had a whopping 26 aces in the match, but he also racked up 40 unforced errors.
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