Sinner without the US Open: the No. 1 ranking comes down to Beijing and Turin
Jannik Sinner has announced he is withdrawing from the US Open due to a right knee injury, his first Slam skipped since his New York debut in 2019. In the rankings, the news barely registers: the 1,300 points from his 2025 runner-up finish come off the board regardless, leaving him above 11,000 — a threshold no one can approach by the end of the tournament. The real reckoning comes after, when over seven and a half weeks he'll have to defend roughly 3,500 points.
The New York margin: 11,500 points nobody can reach
In the live ranking as of August 21, Sinner sits at 12,800 points. Alexander Zverev is second with 7,790, Carlos Alcaraz third with 7,160 after dropping the 1,000 points from his 2025 Cincinnati title. Sinner will shed another 1,300 when his New York final points expire, falling to 11,500.
From there the math closes itself out. Zverev already finished his Cincinnati campaign in the round of 16, beaten by Tommy Paul on August 19 as the No. 1 seed: he has only the US Open left, and winning it gets him to 9,790. Alcaraz skipped Cincinnati with tenosynovitis in his right wrist, so New York is his only shot: winning it gets him to 9,160. Neither one touches 11,500.
Sinner stays No. 1 for the entire tournament without hitting a ball. And it's a margin built on a run that's hard to repeat: six straight Masters 1000 titles from Paris 2025 to Rome, with Indian Wells, Miami, Monte-Carlo and Madrid in between, plus Wimbledon, beating Zverev 6-7, 7-6, 6-3, 6-4.
From Beijing to Turin: 3,550 points in seven and a half weeks
This is where everything changes. Between late September and mid-November 2025, Sinner put together nearly everything that makes that 12,800 so wide: 500 points in Beijing (final won over Learner Tien 6-2, 6-2), 500 in Vienna, 1,000 at the Paris Masters with a final win over Auger-Aliassime, 1,500 at the ATP Finals in Turin beating Alcaraz 7-6, 7-5. Add the 50 from Shanghai, where he retired with cramps against Tallon Griekspoor in the third round, and it totals 3,550.
If he defended nothing at all, Sinner would close the year around 7,950 points. That's the figure that explains why the knee matters more than the New York draw: his team is targeting a return for the Asian swing, Beijing and Shanghai, scheduled from early October - exactly the start of the heaviest block on his calendar.
Alcaraz is defending less than half
Over the same stretch, the Spaniard picked up far less: 500 points in Tokyo, a second-round exit in Paris against Cameron Norrie, and roughly 1,000 from the Turin final. Just over 1,500 in total, against Sinner's 3,550.
This is the imbalance that decides the year. Alcaraz can gain almost everywhere this autumn, because he has open ground at Shanghai, Paris and across the indoor swing. Sinner can only hold what he has. A tournament where the Spaniard goes deep and the Italian exits early swings the differential by up to roughly 950 points at the Masters 1000 level and up to 1,500 at Turin.
It applies to Zverev too, who at 7,790 points remains the awkward runner-up. But the German needs two or three big results in a row to enter the conversation, and in 2026 he's already lost two finals to Sinner, in Madrid and at Wimbledon.
The forecast, and the condition that overturns it
With 11,500 points once New York closes and no pursuer able to get close, Sinner remains the clear favorite for year-end No. 1 even while skipping the US Open. The margin lets him lose roughly half his autumn haul and still stay ahead.
The condition that could overturn it is specific, and it concerns the knee more than the rankings. If his return slipped past Beijing, or if Sinner came back short of rhythm and failed to get past the quarterfinals at Shanghai, Paris and Turin, his total would slide to between 7,950 and 9,700, depending on when he returns. Alcaraz would only need one Masters 1000 and a good week in Turin to take it back. The number to watch isn't the New York draw - it's the date of his return in Beijing.
