The milestones continue to whizz past for Serena Williams, who is running out of records to break and history to rewrite as she approaches the business end of a tournament she has won six times, including three of the past four years.
Kyle Edmund came of age at Louis Armstrong Stadium on Friday night when, against most expectations except his own, he beat the American John Isner in four sets to earn a fourth-round tie in the US Open against the world No1 Novak Djokovic.
If CiCi Bellis’ charmed US Open run suggested a player ready to compete at the tour level, then Friday night’s one-sided defeat to the world’s second-best player showed just how far the teenager from Silicon Valley has to go.
It’s been two years since a 15-year-old unknown named Catherine Cartan ‘CiCi’ Bellis stunned 12th-seeded Dominika Cibulkova to become the youngest girl in nearly two decades to make it past the first round at the US Open.
Johanna Konta collapsed to her knees midway through her match in stifling heat at the US Open before recovering to record an astonishing and controversial win in three sets over the Bulgarian Tsvetana Pironkova. The incident sent a worrying shiver through the tournament as high humidity drained even the fittest players – and few are better conditioned than the British No1.
When Dan Evans, Heather Watson and Laura Robson came to New York in 2013 for the US Open, none could have envisaged how dramatically any of their lives and careers would unravel over the next three years. On day two of this year’s tournament each had a slightly different story to tell.
Andy Murray could hardly have made a more satisfying start to the 2016 US Open than he did here on the revamped Arthur Ashe Court in the last night match on Tuesday, demolishing the stubborn Czech, Lukáš Rosol, in under two hours.
If there is an evident dividend from the Rio Olympic Games, it shines on the faces of those who chose to go and they might yet profit further from the most uplifting experience of their careers at this US Open.
Two players at this US Open, Serena Williams and Laura Robson, are coming to terms with what is left of their very different careers and doing it in contrasting ways.
Britain's vote to leave the European Union has hit the tennis lawns, too.
Suspended tennis star Nick Kyrgios has suggested he is unlikely to see a sports psychologist in a bid to have his eight-week ban reduced.
Novak Djokovic, eight times out of 10 for most of his career, has found a way. On Tuesday night he did it again with tennis which he admitted was short of his best but palpably too good for the eighth time in a row against Milos Raonic.
What started out as another quiet day in paradise turned into a rolling parade of shocks and minor surprises: Novak Djokovic beaten for only the second time in 30 matches this year, and Aljaz Bedene targeting Rafael Nadal’s once-feared forehand on clay, before losing anyway.
Three years ago in New York, where Andy Murray was defending the first of his three grand slam titles, the Association of Tennis Professionals organised a gala dinner for the 25 players who had topped their rankings since 1973.
Marin Cilic, beaten 14 times in a row by Novak Djokovic over eight frustrating years, broke the Serb’s spell over him in two sets of high anxiety in the quarter-finals of the final masters tournament of the season here on Friday to put the world No1’s 122-week reign in serious jeopardy.
It was more of an evisceration than a match.
Federer has hit form at the perfect time just before he takes part in the Wimbledon Championships, taking home the trophy in Germany
Andy Murray has never been fitter or more content at this time of the year and, if he wins the ATP World Tour Finals at the 10th attempt, it will be a fitting end to the most satisfying season of his career.
Andy Murray finally voiced the unthinkable when he said on Saturday that the Big Four, the elite club which he will captain for as long as he can hold Novak Djokovic at bay, could be without its founding members, Roger Federer and Rafael Nadal, within 12 months.