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Match details with competition, start time and exchange-style back and lay prices where a market is open. Figures move constantly and are published for information only, never as advice or a prediction.

Tennis · ATP · Semi-finalsGrand Slamhard courtProjected pairing

Jannik Sinner vs Carlos AlcarazUS Open (Men's Singles) Semi-finals: prediction, predicted score & key players

Jannik Sinner

Win probability

64%

vs

Carlos Alcaraz

Win probability

36%

Sinner 64%36% Alcaraz
Predicted score
6–4, 4–6, 6–3, 6–3

3–1

Start
Order of play TBC
Venue
New York
Format
Best of 5

hard court

Sep 202606SunSemi-finals

US Open (Men's Singles) Semi-finals on 6 Sept 2026: our projection has Jannik Sinner vs Carlos Alcaraz, with Jannik Sinner the 64% favourite and a predicted score of 6–4, 4–6, 6–3, 6–3.

At a glance

AI match overview

AI overview

Jannik Sinner is the projected favourite at 64% over Carlos Alcaraz (36%) in the US Open (Men's Singles) Semi-finals. It is a clear lean, not a lock.

Lean: Jannik SinnerCourt: hard courtFormat: best of 5Tie-break: 50%

The US Open (Men's Singles) (Grand Slam) reaches the Semi-finals on Sunday 6 September 2026 at Arthur Ashe Stadium. The final Grand Slam of the year, played on hard courts in New York with matches that run late into the night.

Our projection has Jannik Sinner vs Carlos Alcaraz as the headline match of the Semi-finals. It comes from a projected bracket built on our reference player pool, not from the official draw, so the confirmed pairing can differ. Four are left, and the two winners meet in the final.

Jannik Sinner is a flat, powerful baseliner who takes the ball early and returns with pace. Carlos Alcaraz is an all-court shot-maker who mixes raw power with drop shots and net play. On medium-pace hard court, our model leans Jannik Sinner, mainly through surface fit.

Match ticket

Match details

Date
Sunday 6 September 2026
Tournament
US Open (Men's Singles)
Round
Semi-finals
Category
Grand Slam
Venue
New York, USA
Main court
Arthur Ashe Stadium, USTA Billie Jean King National Tennis Center
Surface
hard court (medium pace)
Format
Singles, best of five sets
Ranking points
2,000 ranking points
Tour
ATP tour
Projected pairing
Jannik Sinner vs Carlos Alcaraz (projection, not the official draw)

Pairings are projected. The official draw and any withdrawals decide the real match.

Projected line-up

US Open (Men's Singles) Semi-finals predictions

Projected semi-finals pairings from our bracket model, with the headline match first. Percentages are for the first-named player.

  1. Jannik SinnerITAESPCarlos Alcaraz
    64%36%
  2. Novak DjokovicSRBUSATaylor Fritz
    67%33%

Projected title favourite for this event: Jannik Sinner.

These pairings are projections from our reference player pool, not the official draw.

Win probability

Who will win today's match?

We compare Jannik Sinner and Carlos Alcaraz on four factors: fit for hard court, serve, return and recent form. The combined lean is Jannik Sinner at 64%.

Model lean

Jannik Sinner

64% to win · 28-point gap

Sinner 64%36% Alcaraz

Jannik Sinner is the clear pick because of a small edge in surface fit. Carlos Alcaraz keeps a 36% chance, mostly through match-day variance.

Projected pairing: this comes from our reference player pool, so treat it as the shape of the round, not a confirmed order of play. The official draw and any withdrawals decide the real match.

Medium-pace hard court conditions sit between serve-led and baseline styles, which widens the gap between the two players' styles.

Jannik SinnerCarlos Alcaraz
  • 57Surface fitRated on hard court43
  • 57ServeFirst-serve weapon and hold games43
  • 55ReturnBreak-point pressure45
  • 52Recent formLevel over recent events48

Impact names

Key players to watch

Four names our model expects to matter in this round on hard court: the two headline players and the next-best names from the projected bracket.

  • Italy

    ATP

    Jannik Sinner

    Baseline power · Elite return

    Impact84%

  • Spain

    ATP

    Carlos Alcaraz

    All-court · Clay & grass

    Impact81%

  • Serbia

    ATP

    Novak Djokovic

    Best return · Big-match pedigree

    Impact77%

  • Germany

    ATP

    Alexander Zverev

    Big serve · Backhand

    Impact74%

Names, countries and playing styles are real. Impact scores are a model reference. They are not a confirmed draw or line-up, so check the official order of play close to the match.

Scoreboard model

Predicted score & set markets

Jannik Sinner is projected to beat Carlos Alcaraz 3–1, 6–4, 4–6, 6–3, 6–3. The next table shows how the set and games markets line up around that call.

Predicted score

6–4, 4–6, 6–3, 6–3

Jannik Sinner to beat Carlos Alcaraz in 3–1

Every figure is an indicative model, not a live price. Sets and games are derived from a best of five sets format on hard court.

Set score probability

  • Sinner 3–124.3%
  • Sinner 3–220.6%
  • Sinner 3–019.1%
  • Alcaraz 3–215.2%
  • Alcaraz 3–113.2%
  • Alcaraz 3–07.6%

  • Total games

    35–45

    Line 39.5. Average 39.6 games.

  • Tie-break

    50%

    About 16% per set.

  • Total aces

    22–33

    Sinner ~15, Alcaraz ~13.

  • Match length

    2h 46m–3h 32m

    About 4.1 sets expected.

Model lean for each tennis market
MarketModel leanWhy
Match winnerJannik Sinner 64%clear lean over Carlos Alcaraz (36%).
Set bettingJannik Sinner 3–13–0 for Sinner carries 19%. A deciding set is 36%.
Total gamesOver 39.5Model average is 39.6 games, in a range of 35–45.
Games handicapSinner −3.5Sinner is projected to win by about 4 more games than Alcaraz.
Tie-break in matchYes 50%About 16% per set on hard court.
First set winnerSinner 57%Alcaraz takes at least one set 81% of the time.
Total aces22–33Sinner about 15, Alcaraz about 13.
Match length2h 46m–3h 32mBased on 4.1 sets at hard court pace.

Popular tennis betting markets

The markets followers look at most for this match, with what our model says for each. These are reference figures, not live prices.

  • Match winner

    Back the player or nation you expect to win the match, whatever the score.

    Model lean: Jannik Sinner at 64%.

    How this market works

  • Set betting

    Pick the exact set score of a best of five sets match, such as 3–0.

    Most likely: Sinner 3–1, then a deciding set at 36%.

    How this market works

  • Total games

    Bet over or under a games line. Close, serve-led matches push the total up.

    Over 39.5 at a 39.6-game average.

    How this market works

  • Games handicap

    Give or take games to level up a mismatch, so the favourite has to win by a margin.

    Sinner −3.5 sits near the model's margin.

    How this market works

  • Tie-break market

    Predict whether any set reaches 6–6 and needs a tie-break.

    50% for at least one tie-break in the match.

    How this market works

  • Live tennis markets

    Prices move point by point, so first-set and break-of-serve lines can swing quickly.

    Alcaraz steals a set 81% of the time, which is why live lines matter.

    How this market works

The case for this match

Why bet this match?

  • A clear storyline

    Jannik Sinner carry a clear lean, so the interest is in the score and games markets, where the favourite still has to convert.

  • The court shapes the markets

    Medium-pace hard court. It moves the total games line and the tie-break chance (50%), so surface reading is part of the edge.

  • Depth of markets

    Winner, set score, total games, handicap, tie-break, aces and first-set lines all exist for a Grand Slam semi-finals, so you can pick the one that matches what you actually think.

  • Live pricing

    A best of five sets match has many turning points. Break points and set momentum move live prices, and our model shows a 81% chance the underdog takes a set.

For adults 18 and over. Betting can lead to loss, so only use money you can afford to lose.

Fixture guide

About US Open (Men's Singles) Semi-finals

The US Open (Men's Singles) is a Grand Slam event, worth 2,000 ranking points to the champion. The final Grand Slam of the year, played on hard courts in New York with matches that run late into the night.

The Semi-finals is played on hard court at Arthur Ashe Stadium, USTA Billie Jean King National Tennis Center. Players arrive after the Quarter-finals on 2 Sept 2026, and the Final follows on 13 Sept 2026.

Our schedule lists 4 rounds for this event: Round of 16 on 29 Aug 2026, Quarter-finals on 2 Sept 2026, Semi-finals on 6 Sept 2026, Final on 13 Sept 2026. Order of play is published by the tournament the day before and can change with weather.

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All tennis fixturesSee the full US Open (Men's Singles) (ATP) table

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Answers

Questions about Sinner vs Alcaraz

  1. The Semi-finals is listed for Sunday 6 September 2026. Our schedule shows 4 rounds for this event: Round of 16 on 29 Aug 2026, Quarter-finals on 2 Sept 2026, Semi-finals on 6 Sept 2026, Final on 13 Sept 2026.

  2. Our model leans Jannik Sinner at 64%, with Carlos Alcaraz at 36%. This is a projection built on a reference player pool, not the official draw, and it is not a guarantee of the result.

  3. Jannik Sinner is projected to win 3–1, 6–4, 4–6, 6–3, 6–3. Straight sets carry 27% and a deciding set 36%.

  4. The Semi-finals is held in New York, USA, with the main court at Arthur Ashe Stadium, USTA Billie Jean King National Tennis Center. The surface is hard court, which plays at a medium pace.

  5. Singles matches are best of five sets. Four are left, and the two winners meet in the final.

  6. No. Pairings are set by the official draw, which is not part of our schedule data. We show a projected pairing from our reference player pool so you can see the shape of the round. Check the tournament's order of play for the confirmed match.

  7. Jannik Sinner (ITA), Carlos Alcaraz (ESP), Novak Djokovic (SRB), Alexander Zverev (GER). These are reference names from our model and not confirmed line-ups.

  8. Common markets are match winner, set betting, total games, games handicap, tie-break, first-set winner and total aces. Prices move live, and our figures here are model references only.

  9. The champion earns 2,000 ranking points. The Semi-finals winner moves a step closer to that total.

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Pairings are a projection from our reference player pool and are not the official draw. Percentages, projected scores and impact figures are an indicative model for information only. They are not live prices, not betting advice and not a guarantee of any result. Dates and times can change, so confirm them with the tournament. For adults 18 and over. Play responsibly and set limits.

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