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.
When he reached the quarter-finals of Wimbledon this year, many tipped the 22-year-old Lucas Pouille as a star of the future. After his victory over Rafael Nadal in the fourth round of the US Open on Sunday evening, he looked a lot like a star for the present.
Judy Murray has reportedly taken up a short-term role coaching Heather Watson in Australia this month.
An eerie chill has settled over the 2016 Australian Open. And it is not just the changing weather that has persuaded players to turn up their collars against further unpleasant developments on day four.
They say nothing lasts for ever in the Eternal City but this was ridiculous.
Amélie Mauresmo is no doubt right: Andy Murray is “complex”; his on-court rants might well be “disconcerting”, totally at odds with his demeanour in private, and maybe she did have no alternative but to extricate herself from one of sport’s most interesting but stressful marriages.
Andy Murray won a record fifth title here, coming from a set down to still the impressive challenge of Milos Raonic in two hours and 12 minutes on a mild, grey day that did not reflect the tension on court – and off it.
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.