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Sports · US Open 2026 · Men's Singles · Round of 16
Alexander Zverev vs 
Luciano Darderi
Round of 16
Watch: ESPN · ESPN2 · ABC · ESPN app
My pick: Alexander Zverev to advance · locked 2026-09-06 12:40 UTCPrediction
Zverev has spent 11h52 on court to reach the second week and Darderi has spent a fraction of it. That is the whole match in one sentence, and it is why hard-court Elo's 87-13 is not the number I am publishing. Zverev needed 4h53 to get past Sonego and 4h33 to get past Quentin Halys, finishing at 2:15 in the morning; only against Tabilo, in 2h26, did he look like the No. 1 seed. Eighteen first-week five-setters at majors is more than any top-ten player in the history of the sport has had to play, and this is the fortnight it has cost him most. Against that, he is playing the best tennis of his career: Roland Garros in June for a first major at the fourth attempt, the Wimbledon final in July, and now the only man this season to reach the last 16 at all four Slams. Darderi's route has been the softest in the draw — Wendelken at 196, Svrcina at 134, Sweeny at 123, not one opponent inside the top 100 — and this is only his second Slam fourth round. But he has beaten Zverev already, in Rome in May, saving four match points in a 12-10 tiebreak to win 1-6 7-6(10) 6-0 against a man who had been 25-0 that season after taking the first set. He has eleven hard-court wins in 2026, nearly double his previous best, and he led the entire tour in quarter-finals reached. Monday is their first meeting on a hard court and their first at a major. I take Zverev, shaded down from the ratings because ten hours of tennis is a real subtraction and because Darderi is the one man in the draw who has already found the way through.
The case for Alexander Zverev
76% to winZverev is the French Open champion, the Wimbledon runner-up and the No. 1 seed, and the gap in hard-court Elo — 2027 to 1702 — is the largest of any fourth-round tie in this half. He hit 44 winners to 24 against Tabilo, faced no break point in the opening set, and said afterwards that the improvement from the back of the court was what he had been looking for. Sinner's withdrawal took the one man ranked above him out of the tournament, Djokovic went out in the first round, and no other top-ten player is left in his half of the draw. He has also had a day off, which the two nights before it made necessary.
The case for Luciano Darderi
24% to winDarderi has beaten him once and had four match points against him on the second occasion of asking. He arrives fresher than anyone left in this quarter, having been taken to four sets once and to five never, and he has spent 2026 dismantling the clay-court label — eleven hard-court wins, a first Masters 1000 hard-court quarter-final in Montreal, and a fourth round in Melbourne in January. He serves close to twenty aces a match, which is the shot that travels best against a tired opponent, and he is coached by his father, which has been the arrangement through every step of the climb. He is the last Italian in the draw and he knows what that is worth.
Both cases written 2026-09-06, before the first ball — frozen into the record exactly as written, whatever the result. The percentages are mine — opinions with a percent sign on. They add to 100 because tennis has no draw to hide the rounding in.
Tale of the tape
Alexander ZverevLuciano DarderiPlayer vitals: US Open official player feed (usopen.org) and Tennis Abstract career match logs · as of 2026-09-04.
Career head-to-head: Tennis Abstract career match logs (tour-level) · as of 2026-09-06.
The briefing
Storylines
- Zverev has played 11h52 of tennis in three matches. Darderi has been on court for three straight-set wins over players ranked 196th, 134th and 123rd — not one top-100 opponent in the draw's softest route.
- Darderi beat Zverev in the Rome round of 16 on 12 May, 1-6 7-6(10) 6-0, saving four match points in a 12-10 second-set tiebreak after Zverev had served for it at 5-4. It was Darderi's first top-ten win in six attempts; Zverev had been 25-0 in 2026 after winning the opening set.
- Their other meeting was Rome 2024, third round, Zverev in two. Monday is their first on a hard court and their first at a Grand Slam — and Darderi is 1-1 against a man he has never played on the surface that suits Zverev best.
- No top-ten player in history has had to play more first-week five-setters at majors than Zverev's eighteen. He is also the only man this season to reach the fourth round at all four.
- Darderi is the last Italian standing. Italy has had a man in the last 16 at 30 consecutive majors, and a quarter-finalist at the last eleven — the second streak ends on Monday if he loses.
Head to head
Two meetings, one each, both in Rome. Zverev won the 2024 third round in two sets, the first on a tiebreak; Darderi won the 2026 round of 16 1-6 7-6(10) 6-0 in 2h26, saving four match points. Monday is their first meeting on a hard court and their first at a major.
Source: Tennis Abstract career match logs (tour-level) · as of 2026-09-06.
Watch: Fourth-round coverage runs across ESPN, ESPN2 and ABC, with ESPN Deportes in Spanish — and every court streams in the ESPN app, which is where a match away from the two show courts will live. (ESPN press-room release and listings, as of 2026-08-27)
Court & schedule: Not yet assigned. The US Open posts each day's order of play the evening before, and this match has not reached the board yet. (Official US Open order-of-play release cadence, as of 2026-09-06)
Weather: Today — the front half of the fourth round — is 72°F with a 21% chance of a passing shower, and tonight is mostly clear at 62°F. Labor Day, when the other four fourth rounds are played, is sunny and 77°F with nothing in it, and Monday night is partly cloudy at 66°F. The quarter-final days are drier still: sunny and 79°F Tuesday, mostly sunny and 80°F Wednesday, with the first shower chance of the week returning at 21% late Wednesday night. Ashe and Armstrong close their roofs and play on; everything else waits. (National Weather Service New York forecast, as of 2026-09-06)
Venue: USTA Billie Jean King National Tennis Center, Flushing Meadows, New York — hard.
At this Stage
The Round of 16 is the fourth round, and the point at which a Grand Slam stops being a draw and becomes a tournament you can hold in your head: eight matches, played across Sunday and Monday, and the eight who come through are the quarter-finalists. Everyone still here has won three matches on these courts, so the seedings have stopped being a guide and the form of the fortnight has taken over.
Round of 32
Quarter-finals