US Open Predictions Today | Fritz vs Bellucci Prediction Market Picks for Sept 3

For anyone chasing US Open predictions today, the number that jumps off the board is how lopsided this one already looks.
- Ninth-seeded Taylor Fritz, the 2024 US Open finalist, opened his tournament with a clean straight-sets win over fellow American Darwin Blanch, and the market has him as a near-lock to do the same against Mattia Bellucci.
- The lefty Italian is into the second round after handling Zsombor Piros in three sets, but he’s still working back from a knee issue that cost him Wimbledon this summer.
This Fritz vs Bellucci prediction market has Polymarket pricing the top seed as a near-lock, along with the current Polymarket promo code: GRINDERS, which allows new users to Deposit $10, Get a $50 Trading Bonus!
Best Exact Score Pick Today (Editor’s Pick)
We’re taking a position on a clean sweep tonight. Taylor Fritz has the far bigger serve, the far deeper resume on this surface, and a first-round win that barely tested him. Polymarket has Fritz winning this match 3-0 at 54 cents, implying a 54% chance, which is exactly the kind of number a Fritz vs Bellucci prediction market rewards when a heavy favorite is priced to close things out fast rather than get pushed to five.
At 54 cents, a $100 stake buys roughly 185 shares (100 divided by 0.54). Each share is worth $1 if the market resolves in our favor, and the ticket lists a to-win figure of $180.20 on this stake.
- If Fritz closes it out 3-0, the shares settle at $1 each and we collect the full to-win amount shown on the ticket.
- If the match goes any other way, even a 3-1 or 3-2 Fritz win, this contract settles at zero and the stake is gone.
The payout is roughly 1.8 times the stake, which reflects a real but not overwhelming amount of variance. Straight-set wins over lower-ranked lefties happen often, but they’re not automatic.
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US Open Predictions Today: Fritz vs Bellucci Moneyline Odds
Moneyline contracts resolve on who wins the match outright, however many sets it takes. The price reflects the market’s implied win probability, and right now it isn’t close.
Fritz (89%, Yes 89¢)
Fritz is the No. 9 seed and a former finalist at this event, and the market is treating his serve and hard-court comfort as decisive advantages against a lefty who’s still finding his footing after a lost summer. His only previous meeting with Bellucci, on grass earlier this year, went his way in a tight one, and books elsewhere have priced this match even more lopsided.
Bellucci (12%, Yes 12¢)
Bellucci is into the second round after a solid three-set win, and he says he feels physically sound. Still, this is a much bigger step up in class, and he’s never faced Fritz on a hard court, let alone at a major.
Fritz vs Bellucci Prediction Market Picks: Spread and Total
Fritz -7.5 Games (Yes 43¢, No 59¢)
This line asks whether Fritz wins by more than 7.5 total games across the match, essentially demanding a dominant, low-resistance performance rather than just a win. The price has softened a bit, suggesting some traders expect Bellucci to steal a few games even in a loss.
Over 32.5 Games (Yes 54¢, No 48¢)
The totals number sits right around a fair three-set line. A quick 3-0 sweep with tight sets could easily land right on this number either way, which is part of why it’s priced so close to a coin flip.
Set Winner and Exact Score Predictions for Fritz vs Bellucci
Beyond the main markets, Polymarket also lets traders price individual sets and the exact final score. Below, the exact score contracts are sorted by Yes price, most to least likely. A couple of the longer-shot scorelines only have one side actively priced right now, so only the priced side is shown for those.
Set 1 Winner
- Fritz (Set 1 Winner: Yes 79%): the same serve advantage that shows up in the moneyline shows up early, and the market expects him to bank the opening set.
- Bellucci (Set 1 Winner: Yes 23%): this number has drifted up recently, a sign some traders think an early scare is live even if the overall match outcome isn’t in doubt.
Exact Match Score
- Fritz wins 3-0 (Yes 54%, No 50%): the single most likely scoreline on the board, and the one our Editor’s Pick above is built around.
- Fritz wins 3-1 (Yes 27%, No 77%): a live outcome if Bellucci finds one set of real resistance before the class gap takes over.
- Fritz wins 3-2 (Yes 13%, No 91%): priced as a real but distant possibility, the outcome if Bellucci’s lefty forehand gets going for stretches.
- Bellucci wins 3-2 (Yes 6%, No 97%): the market’s version of a full-blown upset, requiring Bellucci to win a deciding set against a much higher-ranked opponent.
- Bellucci wins 3-0 (Yes 5%): barely priced at all, reflecting how unlikely a clean sweep the other way is seen to be.
- Bellucci wins 3-1 (Yes 5%): similarly a longshot, in line with the rest of the board’s lean toward Fritz.
Fritz vs Bellucci Price Analysis: What’s Moving the Market
The biggest recent move is on the games spread, which has softened by 5 percentage points on Fritz covering 7.5 games. That’s the kind of swing that matters for US Open predictions today built around how dominant a favorite needs to be, not just whether he wins.
The Set 1 Winner market has moved even more, with Fritz’s number down 18 points and Bellucci’s up 22 in the other direction. That gap between the games-based numbers and the outright moneyline suggests traders see a real chance of early nerves or a slow start, even while still expecting Fritz to close the match out comfortably.
The Fritz vs Bellucci prediction market has moved noticeably on the games-based numbers too, while the outright moneyline has stayed put near 89%. For a fuller sense of how these prices compare across other sportsbooks and exchanges, the prediction market odds board is worth checking before placing anything.
Overall, the shape of the market says this: a heavy favorite who’s expected to win comfortably, but not necessarily without giving up a set or a stretch of shaky games along the way.
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Disclaimer: Prediction markets provide real-time probability estimates based on traded contracts. These prices reflect market sentiment and do not guarantee future outcomes. Trading event contracts involves risk; ensure you understand the resolution criteria before taking a position.
Fritz vs Bellucci Prediction: Final Thoughts
As far as US Open predictions today go, the board is treating this one as a formality rather than a coin flip, and the underlying numbers back that up. Fritz has the bigger weapons, the deeper major-tournament experience, and a first-round performance that didn’t ask much of him.
Bellucci’s path to pulling this off runs through an early set win and turning this into a longer, scrappier match than the moneyline suggests. That’s a live enough possibility that the Set 1 and exact-score markets are worth watching even if the outright winner isn’t really in question. Anyone comparing platforms before trading should also check out this Polymarket review for a closer look at how the exchange handles order execution.
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