Biggest Upsets of the 2026 US Open: Live Tracker

The biggest upsets of the 2026 US Open are logged here after every session, from first round play on Sunday, August 30 to the finals on September 12 and 13.

Every seed that falls at Flushing Meadows gets the score, the round and what it changes in the draw.

Biggest Upsets of the 2026 US Open

Upset · Women's Singles · Round of 128

Kamilla RakhimovaWorld No. 88def.Barbora KrejčikováWorld No. 28

Final

Kamilla Rakhimova7⁷6◀

Barbora Krejčiková6⁴2

Round of 128

Upset · Men's Singles · Round of 128

Mariano NavoneWorld No. 44def.Novak DjokovicWorld No. 5

Final

Mariano Navone7⁷5466◀

Novak Djokovic6⁵7621

Round of 128

Detected automatically: top-32 players beaten by opponents ranked at least 10 places below them.

Seeds Out at the 2026 US Open

Each singles draw has 128 players and 32 seeds, set from the ATP and WTA rankings of Monday, August 24. The official draw sheets at usopen.org carry every matchup. This counter closes at the end of every day’s play.

	Men’s singles	Women’s singles
Seeds eliminated	0 of 32	0 of 32
Highest seed out	None yet	None yet
Current round	First round	First round

One quirk matters this year. Jannik Sinner withdrew with a right knee injury, his first missed major since 2019, so every man in the field is seeded one place above his ATP ranking.

Top seed Alexander Zverev is world No. 2. Carlos Alcaraz, seeded 2, is world No. 3. Read the men’s seed numbers with that shift in mind.

Biggest Upsets of the 2026 US Open So Far

Singles play starts today, so the first entries land tonight. The opening shock of the fortnight arrived a week early, in the mixed doubles championship played on August 25 and 26.

• Patten and Siniakova beat top seeds Sabalenka and Djokovic, 1-4, 4-2, 10-2 in the first round.
• Two time defending champions Errani and Vavassori lost their opener as well.
• Muchova and Mensik took the title, beating Bencic and Cobolli 6-3, 1-6, 10-6.

That short format rewards fast starters, so read it lightly. Both top seeds still went out in their first match before a singles ball was struck.

What Counts as an Upset Here

Not every seeded loss is a shock. A result is logged if it passes at least one test:

1. A seed loses to an unseeded player.
2. The ranking gap is 30 places or wider.
3. A qualifier, wild card or lucky loser beats a seed.
4. A former champion or the defending champion loses before the quarterfinals.

Retirements and walkovers are noted separately, because a seed pulling out injured in set one is a different story.

Seeds Most at Risk in Week One

Men’s draw

Carlos Alcaraz, No. 2. The defending champion opens on Monday against Roman Safiullin, ranked 98, in his first singles match since a wrist injury at the Barcelona Open in April. Four months out is the story here, not the opponent, though their head to head is level at 1-1 and Safiullin serves big and swings early. Alcaraz is 24-3 at Flushing Meadows with titles in 2022 and 2025. Ben Shelton and Arthur Fils share his quarter, with Shelton projected as the quarterfinal opponent.

Daniil Medvedev, No. 7. The 2021 champion faces qualifier Hugo Gaston on Arthur Ashe today. Gaston is all drop shots, slice and disruption, and he strips rhythm from bigger hitters. It is the trickiest opener any top eight seed drew.

Arthur Fils, No. 10. Drawn against Stefanos Tsitsipas in round one. On seeding it would count as an upset. On form it is a coin toss.

Alexander Zverev, No. 1. He opens against Lorenzo Sonego, who lives in long rallies and loud courts, and a third round meeting with qualifier Grigor Dimitrov sits in the same section. The precedent is fresh: Felix Auger Aliassime beat Zverev here in the third round last year and ran to the semifinals.

Novak Djokovic, No. 4. Chasing a record 25th major, he plays Mariano Navone in tonight’s session. His section holds Matteo Berrettini, Andrey Rublev and wild card Stan Wawrinka, and Medvedev is the projected quarterfinal.

Women’s draw

Aryna Sabalenka, No. 1. The two time defending champion is chasing the first US Open three peat since Serena Williams from 2012 to 2014. She opens Monday against Camila Osorio, and Renata Zarazua, who knocked out sixth seed Madison Keys here last year, could arrive in round two. Barbora Krejcikova looms in round three, Diana Shnaider in round four, and Wimbledon champion Linda Noskova in the quarterfinals.

Coco Gauff, No. 4. The hardest early section of the draw. Gauff starts against Zeynep Sonmez, then most likely meets the winner of Paula Badosa against Daria Kasatkina. Mirra Andreeva, Amanda Anisimova, Alexandra Eala, Iva Jovic and Jelena Ostapenko all share her quarter.

Iga Swiatek, No. 8. She plays Wang Xiyu first and sits in a quarter with Elena Rybakina, Naomi Osaka, Madison Keys and Belinda Bencic. Someone very good leaves that section early.

Elena Rybakina, No. 2. Reaching the semifinals makes her world No. 1 whatever anyone else does, which brings its own weight. She begins against American wild card Thea Frodin, with Maria Sakkari projected in round three and Osaka in round four.

Unseeded Players Who Can Cause the Next Upset

• Hugo Gaston. A qualifier with the most awkward game in the field, and he draws Medvedev on day one.
• Grigor Dimitrov. A former world No. 3 came through qualifying and landed in Zverev’s section.
• Paula Badosa and Daria Kasatkina. Two former top 10 players, both unseeded, drawn against each other. The winner gets Gauff.
• Renata Zarazua. Ranked 82 when she beat Keys in the 2025 first round, she is back and projected to meet Sabalenka in round two.
• Daria Snigur. Drawn against 15th seed Diana Shnaider. As a qualifier ranked 124 she beat seventh seed Simona Halep in the 2022 first round, her first main draw match at a major.
• Venus Williams and Sofia Kenin. Two former major champions meet tonight, with Venus in on a wild card at 46, the oldest woman in a US Open singles main draw since 1981.
• The qualifiers. Sixteen in each draw, all match sharp from three wins last week while the seeds practised.

Why Flushing Meadows Breaks Brackets

The US Open has the loosest form book of the four majors, and the reasons are structural. The Laykold surface is quick. Night sessions run late and loud. Late summer heat punishes anyone carrying a niggle. A New York crowd adopts an underdog inside three games and stays with them for three hours.

The record backs it up. Emma Raducanu came through qualifying in 2021 and won the title without dropping a set, still the only qualifier to win any Grand Slam. Kim Clijsters won in 2009 as an unranked wild card in her third tournament back from retirement. Zarazua took out Keys on day one last year. None of those were one hot afternoon. They were runs.

How to Track the Biggest Upsets of the 2026 US Open Live

• Live scores: every match in progress, set by set.
• Full bracket: the 128 player tree, advanced as results land, plus free printable draw sheets.
• Daily results: every completed score, round by round.
• Order of play: who is on which court and when.
• The draw: seed lists, matchups, withdrawals and wild cards.
• Player field: entry list, seeds and wild cards.

The biggest upsets of the 2026 US Open usually land in week one, and this draw has already sent the invitations. Alcaraz returns cold after four months out. Medvedev drew the most awkward qualifier in the field. Gauff has two former top 10 opponents waiting in round two. Check back after each session, because one seed falling changes the shape of a whole quarter.

FAQ About the Biggest Upsets of the 2026 US Open