Only one Australian man remains in the draw after what can only be described as a manic day 6 in Flushing Meadows.
That man is Alex de Minaur, who showed an unbelievable fight only inadequate against the seventh seed Marin Cilic in a match that lasted exactly four hours and only occurred in the time of 2:22 PM local time.
It was only four minutes less than the last finish ever for a match at the US Open, which took place three times, the most recent in 2014 when Kei Nishikori Milos Raonic survived in a five-set marathon en route to the final of that year. .
The 19-year-old de Minaur claimed the opening of two sets, after which a big upset appeared on the cards, before Cilic launched his comeback and took the third and fourth set 6-3 and 6-4 respectively to set the game to two . sets everything and forces a shootout with one set.
The young Australian hit the first battle by breaking early in the final, before Cilic took a 5-2 lead and had five match points against his serve.
However, the Minaur would not admit, they all save to hold on in the eighth game and then enforce the 2014 titlist to hand it out.
But there was more drama going on, as Cilic was then broken in the ninth game, before the Minaur stopped to make it 5.
The 29-year-old Croatian would then take the last two games of the game and convert his seventh match point to a fourth round engagement with the Belgian David Goffin.
It marked his sixth comeback from two sets to love in a best-of-five game, while he also made eight of nine in matches that had gone the distance on Vlissingen Meadows.
Earlier in the day, Nick Kyrgios was no match for Roger Federer when he was in straight sets, but despite the skewed score, the Australian was far from embarrassed.
Federer & # 39; s class was highlighted in the third set when he closed this spectacular shot in the seventh game of the third set:
– US Open Tennis (@usopen) September 2, 2018
And all Kyrgios could do was look full of awe.
The dream quarterfinal between Federer and Novak Djokovic is closer to eventing, with the Serbian taking part in a straight-sets victory over French 26th seed Richard Gasquet.
He is then faced with Joao Sousa in the fourth round, while Federer faces another Aussie in his next game, in the form of John Millman.
But the fourth part, the Alexander Zverev tournament, is coming to an end, after having dropped four sets against compatriot Philipp Kohlschreiber, who will see Kei Nishikori after he defeated Diego Schwartzman in four sets.
Meanwhile, in the ladies' draw, there are no top ten seeds left in the bottom half of the draw after Angelique Kerber and Petra Kvitova both have fallen out of the tournament.
Kerber, the fourth seed and the 2016 champion, fell in three sets to the Dominika Cibulkova from Slovakia, while Kvitova became the latest victim of the rising star of the Belarusian rising star Aryna Sabalenka, who raced in straight sets.
This means that none of the earlier Grand Slam winners of this year have passed in the fourth round, after Caroline Wozniacki (Australian Open) and Simona Halep (French Open) left all Flushing Meadows in the first four days.
It also means that there will be a first Grand Slam semi-finalist, which will come from the bottom quarter of the draw.
The two games in this part of the draw see Sabalenka saxophone heels with Naomi Osaka from Japan, while Marketa Vondrousova stands up against the second winner of Wozniacki, Lesia Tsurenko.
A former champion who will perform in the second week is 2006 Titanist Maria Sharapova, who comfortably defeated the former French Open title list Jelena Ostapenko in straight sets and lost only five games.
The Russian is now the favorite of the bottom half of the draw to reach the final, with her only obstacles to a possible championship showdown against Serena Williams, a possible quarter-final clash against Madison Keys or Dominika Cibulkova.
First, however, the 31-year-old must beat the Spaniard Carla Suarez Navarro (a three-set winner over Caroline Garcia) in her fourth round.
The fourth round begins this morning with Rafael Nadal looking for a rematch against Dominic Thiem (which he defeated in the French Open final in June) or Kevin Anderson (whom he defeated in the US Open final last year) in the quarterfinals. finals, while Serena Williams is becoming a favorite to reach the final eight when she stands up against Kaia Kanepi.
Champion Sloane Stephens, the defending champion, heads the evening session and takes on Elise Mertens for 2009, champion Juan Martin del Potro, against the boys champion Borna Coric 2013.
The last remaining Australian in the ladies tournament, Ashleigh Barty, is in the standings against the second rider in the Louis Armstrong Stadium against the runner-up Karolina Pliskova 2016, with a possible quarter-final confrontation against Serena the prize for the victor.
Matches to look on day 7
Arthur Ashe Stadium
Day session – play starts at 12:00 (02:00 EST)
 Rafael Nadal (ESP) against Nikoloz Basilashvili (GEO)
Kaia Kanepi (EST) against  Serena Williams (USA)
Night session – play starts at 19:00 (9:00 AM AEST)
 Sloane Stephens (USA)  Elise Mertens (BEL)
 Juan Martin del Potro (ARG) against  Borna Coric (CRO)
Louis Armstrong Stadium
Play starts at 11 a.m. (1 p.m. EST)
 Dominic Thiem (AUT) against  Kevin Anderson (RSA)
 Ashleigh Barty (AUS)  Karolina Pliskova (CZE)
 Against John Isner (USA)  Milos Raonic (CAN)
Not before 5.00 pm (7.00 am AEST)
 Anastasija Sevastova (LAT) against  Elina Svitolina (UKR)