Jessica Pegula vs Sorana Cirstea prediction time, and this US Open fourth round round splits into two separate questions. Who wins the match, and is minus 312 a price worth paying. T Money answers them differently. The model leans Pegula. The card says PASS, an official no play, because the number does not clear our bar even though the side does.
Pegula and Cirstea met eighteen days ago in the Cincinnati round of 16, and Pegula survived 6 2, 4 6, 7 5. That match is the single best piece of evidence here, same surface, same two players at their current level, and it sets up almost everything below.
Why T Money leans Pegula anyway
Start with the serve. Both players grade out as first strike types on hard courts this season, Pegula 9 and 8, Cirstea 7 and 5, so that part of the profile mostly cancels. The gap shows up on the second serve exchange. Pegula wins 56 percent of second serve return points on hard and breaks in 38 percent of her return games. Cirstea's second serve has been worth only 49 percent this month, sitting behind a 59 percent first serve rate and a double fault problem that has not gone away.
That double fault number matters more than it looks. Cirstea's win over Jasmine Paolini in the third round came on a 72 percent first serve day, thirteen points above her own twelve month baseline. It repaired her results but not her process. She still double faulted on 6.0 percent of her service points in that match, matching her degraded one month rate. The good day covered the same underlying issue that showed up in Cincinnati, where she served at 54.6 percent first serves in, hit one ace to four double faults, and got broken seven times.
The loss tables point the same direction. Cirstea's hard court losses are led by Pegula and by disciplined, low error returners, exactly Pegula's game. Pegula's own losses come against bigger first strike hitters, a different shape than Cirstea presents.
The physical case
Pegula is up to eleven matches in the last thirty days, Cirstea only six. Pegula also played one day less rest than a clean turnaround into this one, coming off a three set, two hour eleven minute win over Leylah Fernandez in the round of 16 that saw her first serve percentage sag to 54 percent and face eleven break points across thirteen service games. That is a live concern, her process was shaky even in the win.
Cirstea is 36 and has said this is her final season, which raises its own fatigue question, but she has the fresher legs by workload this month. The Cincinnati third set between these two ran the full distance, Pegula closing it out 7 5. If the match goes long again, the physical edge starts to look like Cirstea's, not Pegula's, and that tension is part of why this stays off the bet list.
Why this is a PASS at minus 312
T Money's side is Pegula. The price is not. Minus 312 sits well above our number for backing a favorite as an official play, and that ceiling is not something we bend because the read feels good. A price this heavy needs an overwhelming case, and what we actually have is a mixed one: Pegula's results are strong but her process just wobbled against Fernandez, and Cirstea's serve, if it repeats its Paolini level rather than its Cincinnati level, keeps this closer than the price implies.
Match time is 5 PM ET on September 6. Cirstea's only prior win in this head to head came in 2011, a result fifteen years stale and not a description of either player today. The 2026 Cincinnati match is the one that counts, and it went to a deciding set.
The verdict
PASS. T Money likes Pegula's side of this match on the fundamentals, from the second serve return numbers down to the loss table matchup, but minus 312 asks too much for a card that also includes Pegula's shaky first serve week and a real fatigue question in her favor over Cirstea. No official action here. This is a No Play on price, not a lean, and not a call on who wins.