Now that the quarterfinals are done at Flushing Meadows, USOpen.org is tallying up the numbers.
26-0: Novak Djokovic’s record at the majors in 2021. The Serb is two victories away from becoming the first player to win the Grand Slam since Rod Laver in 1969.
9: Number of times that Djokovic has dropped the opening set in his 26 Grand Slam matches in 2021.
22: Number of service points won in succession by Maria Sakkari during her 6-4, 6-4 victory over Karolina Pliskova in the quarterfinals on Wednesday night in New York.
16: The length of Alexander Zverev’s current winning streak. The German will put it on the line against Djokovic n Friday’s semifinal.
43: Number of wins recorded by Aryna Sabalenka in 2021. The No. 2 seed takes over the WTA win lead on the strength of her quarterfinal victory over Barbora Krejcikova.
2:13 a.m. Time when the fourth-round match between Sakkari and Bianca Andreescu finished. It was the latest finish in US Open history for a women’s singles match.
2: Number of teenagers who have reached the semifinals at this year’s US OpenーEmma Raducanu, 18, and Leylah Fernandez, 19.
78: Forehand winners struck by Fernandez in five matches. She leads all remaining players, male or female.
12-0: Djokovic’s record in US Open quarterfinals.
42: Career Grand Slam semifinals reached by Djokovic. The Serb is four shy of Roger Federer’s all-time record of 46.
2009: The last time that multiple teenagers had reached the women’s singles semifinals at the US Open. Caroline Wozniacki and Yanina Wickmayer played the semifinals in 2009. This year it is Raducanu and Fernandez.
1: Number of qualifiers remaining in the US Open singles draws. Raducanu of Great Britain becomes the first qualifierーmale or femaleーto ever reach a US Open semifinal with her win over Belinda Bencic on Day 10.
338: Raducanu’s ranking prior to Wimbledon. She is projected to reach the Top 50 as a result of her US Open semifinal.
0: Number of qualifiers to have reached Grand Slam finals.
16-0: Raducanu has yet to drop a set in her eight matches through qualifying.
22: Number of games dropped by Raducanu through her first five main draw matches at the US Open.
150: Lowest-ranked singles player left in the draw is British qualifier Raducanu.
1: Number of singles players that have reached the semifinals on their US Open debut in 2021: Raducanu. Only one player in US Open history has won a US Open on his or her main draw debut: Andreescu in 2019.
1: Only one singles player will finish the 2021 US Open without having his serve broken. Jiri Vesely, who held in all 28 of his service games over the course of his 6-7, 6-4, 6-3, 6-7, 6-7 loss to Kevin Anderson.
1: Thirty somethings into the semifinals at the US Open—Djokovic.
21.5: The average age of the four women’s singles semifinalists.
26: Average age of the four men’s singles semifinalists.
142: The fastest recorded serve through the quarterfinals. A tie between John Isner, Reilly Opelka, and Philipp Kohlschreiber.
129: The fastest recorded serve of the first four rounds, struck by American Alycia Parks in the first round.
2: Number of unseeded players that reached the semifinalsーRaducanu and Fernandez.
Stats assistance provided by ATP and WTA Media
