From 64 men and 56 women, the field has now men narrowed to 8 each. Earlier today the final matches of the round of 16 were played. Here are the results.
There are two winners to note in the draw as some what surprising.
In the less surprising of the two, the 10 seed Novak Djokovic defeated the 5 seed Grigor Dimitrov 2-6, 6-3, 6-4. This match started Thursday night before rain would force play to be suspended until Friday afternoon. Djokovic, who was struggling before the rain delay seemed to turn it on come Friday.
The other upset was the 11 seed David Goffin sending the 6 seed Kevin Anderson to New York early in straight sets 6-2, 6-4. For Goffin, that makes three tough matches in a row beating the up and coming Stefanos Tsitsipas, Benoit Paire, and Kevin Anderson to reach the quarterfinals. This match was originally the late match last night, but was among those moved to this morning for rain.
Milos Raonic defeats Deni Shapovalov 7-6 (6), 6-4
13 Pablo Carreno Busta defeats Robin Haase 6-4, 6-2
7 Marin Cilic defeats Karen Khachanov 7-6 (2), 3-6, 6-4
4 Juan Martin del Potro defeats 15 Nick Kyrgios 7-6 (3), 6-7 (2), 6-2
Stan Wawrinka defeats Marton Fucsovics 6-4, 6-3
2 Roger Federer defeats Leonardo Mayer 6-1, 7-6 (2)
The women's side of the draw also suffered a few upsets in the round of 16.
The 13 seed Madison Keys defeated the 4 seed Angelique Kerber to punch her ticket to the quarter finals. Key needed three sets including a second set tiebreaker to knock off the defending Wimbledon champion.
Aryna Sabalenka pulled off her own upset by defeating the 6 seed Caroline Garcia. Sabalenka has now beaten two seeded players and a grand slam champion so far to reach the quarterfinals.
The 15 Elise Mertens surprisingly knocked off the cruising Sloane Stephens 7-6 (8), 6-2. Stephens is the defending US Open Champion and mostly likely won't play
1 Simona Halep defeats Ashleigh Barty 7-5, 6-4
Lesia Tsurenko defeats Ekaterina Makarova 7-6 (5), 6-2
8 Petra Kvitova defeats Kristina Mladenovic 6-4, 6-2
5 Elina Svitolina defeats Amanda Anisimova 6-4, 6-4
Kiki Bertens defeats Anett Kontaveit 6-3, 2-6, 6-3
The quarterfinals are underway. Check back later for more results.