US Open 2026 Quarterfinal Day: Alcaraz vs. Shelton
Day 10 briefing: QF card, title odds after R16 upsets, and what to watch at Flushing Meadows
2026 US Open Tennis — Quarterfinal Day Briefing: September 8
Day 10 at Flushing Meadows delivers the most loaded single day of the fortnight. Monday, September 7 completed a Round of 16 that eliminated Naomi Osaka, Iga Swiatek, and Daniil Medvedev while sending defending champion Carlos Alcaraz and three-time champion Aryna Sabalenka cleanly into the quarterfinals.
The quarterfinals take centre stage on Tuesday, September 8
, with four matches spread across Arthur Ashe and Louis Armstrong stadiums.
Alcaraz has jumped seven points on the event-contract markets to 62% title probability, while Alexander Zverev has fallen to 23%.
On the women's side, two-time defending champion Aryna Sabalenka has climbed to 33%,
with Coco Gauff at 23% behind her. The day's marquee clash — Alcaraz vs. Ben Shelton — is the match the draw promised since the bracket was published. Track every move in the live title markets at WeeBet's hub: /events/us-open-tennis-2026.
Yesterday's Key Results — Monday, September 7
Monday delivered several clean storylines heading into the quarterfinals.
Men's draw:
Frances Tiafoe improved his record to 10-0 at Louis Armstrong Stadium, defeating Daniil Medvedev in straight sets, 7-6(1), 6-4, 7-6(6).
Ben Shelton also advanced in straight sets, dispatching Stefanos Tsitsipas 6-2, 6-3, 6-4.
On the other side of the draw,
the lone American to play, No. 14 Learner Tien, was eliminated in a five-set thriller, falling to Karen Khachanov after going up 2-1 in the match before losing the final two sets.
Carlos Alcaraz eased any concern about rust, defeating Tommy Paul in straight sets — the defending champion's forehand looked as strong as ever as he took advantage of Paul's serving struggles.
Women's draw:
Coco Gauff defeated Iva Jovic 6-1, 6-4
to reach her quarterfinal.
Elena Rybakina eliminated Naomi Osaka 6-1, 6-4.
It's a disappointing end for Osaka, who was looking to return to the semifinals for the second straight year at this event, though it has been a clear return to form for the four-time Grand Slam champion.
The upset of the night:
Qinwen Zheng defeated No. 8 Iga Swiatek 7-5, 6-3
, sending one of the pre-tournament favourites home early.
Zheng had to overcome a 5-0 deficit in the opening set before rallying to take it 7-5.
Title Market Snapshot — As of September 8
- Alcaraz (Men's)0%DK Predictions
- Zverev (Men's)0%DK Predictions
- Shelton (Men's)0%DK Predictions
- Sabalenka (Women's)0%DK Predictions
- Gauff (Women's)0%DK Predictions
- Rybakina (Women's)0%DK Predictions
Live odds update match by match at WeeBet's US Open hub. Markets shift in real time — check back between sessions.
Today's Quarterfinal Card — September 8
QF Order of Play — September 8, 2026
| Match | Draw | Court |
|---|---|---|
| Carlos Alcaraz (2) vs. Ben Shelton (8) | Men's | Ashe |
| Frances Tiafoe (11) vs. Alex Michelsen | Men's | Armstrong |
| Aryna Sabalenka (1) vs. Linda Noskova | Women's | Ashe |
| Jessica Pegula (3) vs. Emma Navarro (26) | Women's | Armstrong |
Day sessions begin at noon ET on Arthur Ashe Stadium, with Ashe night sessions at 7 p.m. ET.
Alcaraz vs. Shelton — The Match of the Tournament
On Tuesday, the match between Ben Shelton and Carlos Alcaraz is technically a quarterfinal, but it feels like the final.
Shelton dominated in Montreal and played his best tennis of the year by far
heading into this contest. Alcaraz, for his part, is
playing his best tennis since returning from his wrist injury.
Alcaraz holds a commanding 39-point advantage at the top of the men's market at 62%, while Zverev sits at 23%.
Shelton has edged up one point to 11%, while Frances Tiafoe has made the biggest move among the Americans, doubling from 3% to 6%.
Alcaraz's serve-and-forehand game on hard courts has proven lethal this fortnight, but Shelton's left-handed delivery — consistently clocking above 140 mph — poses a legitimate threat to Alcaraz's return game. A five-set outcome is live. The winner enters the semifinal as a near-certain title favourite.
Women's Side: Sabalenka, the Rybakina Threat, and an American QF
Defending women's singles champion Aryna Sabalenka faces a mammoth task against Linda Noskova, the newly crowned Wimbledon winner enjoying her best career run at Flushing Meadows.
For Rybakina, reaching the quarterfinal marks her deepest-ever run at the US Open after previously making it only to the fourth round — it is her fifth Grand Slam semifinal appearance in total.
After winning the Australian Open earlier in 2026, Rybakina now needs just a win in the quarterfinal to have earned enough total points to unseat Aryna Sabalenka for the world No. 1 ranking once the tournament concludes.
There will also be two quarter-finals featuring all-U.S. clashes: No. 3 seed Jessica Pegula against No. 26 seed Emma Navarro in the women's event, and No. 11 seed Frances Tiafoe against unseeded Alex Michelsen in the men's.
The Tiafoe–Michelsen result guarantees an American men's semifinalist.
The Prize Money Context
The 2026 US Open offered a record $108 million in total player compensation — the largest package in tennis history, an increase of 21% from 2025.
The men's and women's singles champions each receive $5,500,000, a 10% increase from the $5,000,000 awarded in 2025, while runners-up receive $2,800,000.
Every point on the markets today is being made with that $5.5 million cheque in the background.
What to Watch For Today
Alcaraz serve return rate. Shelton's first serve won him matches against everyone through to this stage. If Alcaraz returns at the level he showed against Paul on Monday, the Shelton serving advantage evaporates. Watch the first-serve points-won percentage within the first two games of each set.
Noskova's groundstroke depth. Sabalenka concedes little to virtually any player in baseline exchanges, but Noskova's Wimbledon run was built on flat, penetrating groundstrokes from both wings. Any short ball from Sabalenka gets punished.
Pegula vs. Navarro — the form vs. experience matchup.
Pegula defeated Sorana Cirstea in straight sets on Sunday, and while she struggled to find her first serve, she played a relentless return game, ultimately breaking Cirstea seven times.
Navarro is known for her counterpunching efficiency. Expect a long first set.
For all four matches, follow live position pricing at WeeBet's US Open markets hub — /events/us-open-tennis-2026. You can take positions on match winners, set totals, and outright title contracts as play unfolds.
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Frequently Asked Questions
Who are the quarterfinal matchups at the 2026 US Open on September 8?
The confirmed quarterfinals on September 8 are: Carlos Alcaraz vs. Ben Shelton and Frances Tiafoe vs. Alex Michelsen in the men's draw — guaranteeing an American men's semifinalist — and Aryna Sabalenka vs. Linda Noskova and Jessica Pegula vs. Emma Navarro in the women's draw.
Who is the current favourite to win the 2026 US Open men's singles title?
Carlos Alcaraz has tightened his grip on the 2026 US Open title markets, climbing to 62% probability, while Alexander Zverev has slipped three points to 23% as of September 7.
What happened to Iga Swiatek and Naomi Osaka at the 2026 US Open?
Qinwen Zheng eliminated No. 8 seed Iga Swiatek 7-5, 6-3 in the fourth round on September 7.
Elena Rybakina dispatched Naomi Osaka 6-1, 6-4 on the same day.
When are the 2026 US Open finals?
The women's singles final is on Saturday, September 12, and the men's singles final is on Sunday, September 13.
The 2026 US Open is the 146th edition of the event, held on the outdoor hard courts at the USTA Billie Jean King National Tennis Center in New York City.
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