T Money's Ella Seidel vs Yuliia Starodubtseva prediction for this US Open first rounder lands on Starodubtseva, and the case behind it is one of the more concrete you'll see on this page: real rest numbers, a documented recent result against a ranked player, and a matchup that plays right into Starodubtseva's hands. First serve at 11:00 AM ET.
But this is a PASS, not a play. T Money's official card carries no action on this match. The lean is real. The bet isn't.
Why T Money likes Starodubtseva
Start with the calendar. Starodubtseva played a quarterfinal in Monterrey on August 28, four days before this match, and traveled straight from Mexico to New York. Seidel's last completed match was August 24, so she arrives with eight days off and zero matches in the last two weeks. On paper that reads as a rest edge for Seidel, but T Money's research flips it: Starodubtseva's week was quality work, not fatigue.
In that Monterrey run she beat Lilli Tagger in straight sets, then knocked off Janice Tjen, the No. 35 player in the world, 6-4 6-3, winning the match by out-serving and out-breaking a ranked opponent rather than living off Tjen's errors. She only lost the quarterfinal to Elise Mertens, a top-tier player, in straight sets. That's a WTA 500 level event on the same hard courts this tournament is played on, and it's the freshest form line either player has.
Seidel's ledger over the same stretch tells a different story. Every hard-court match she's played against a genuine tour-level opponent since February has been a loss, three of them lopsided. Her ranking has fallen from a career-high 78 in January to 123 now.
The number that matters
The stat T Money keeps coming back to is the serve-and-return split. Starodubtseva wins 56% of her second-serve return points and breaks 40% of the return games she plays. Seidel puts only 57% of her first serves in play, wins just 43% of her second-serve points, and has been double-faulting on 6.8% of her service points over the last year, a number that jumped to 10.5% in her most recent charted match.
Zoom out to the twelve-month hard-court windows and Starodubtseva leads on both legs that decide these matches: a 68% hold rate to Seidel's 65%, and a 36% return-games-won rate to Seidel's 31%. Run it out to total points and Starodubtseva is projected to win roughly 51.3% of points played against Seidel's 48.2%, a gap of about three points per hundred. Over best-of-three, that's a real edge, not noise.
The case against, and why it's still a PASS
Two things keep this off the official card. First, the price. Starodubtseva sits at -208 on the moneyline, which is a short number for a match where the fundamentals lean her way but haven't been tested against this exact opponent before. Second, Seidel's dossier had a real gap that T Money's research had to fill by hand: two hard-court events in August that didn't show up in the initial record, including a win over Dalma Galfi and a qualifying win in Philadelphia. Filling that gap made Seidel's recent form look a little better than the first pass suggested, even though it didn't reverse the overall decline.
There's also a pattern worth naming. Seidel's 2026 losses read like a list of low-error, consistent baseliners who force her to hit an extra ball: players such as Podoroska, Zakharova, and Bouzas Maneiro beat her in straight, low-drama sets. Starodubtseva, with a 3% double-fault rate and 63% of first serves landing in, fits that same profile. Seidel has also folded late in deciding sets against several opponents this year. Both of those are real, supporting threads for the pick, but neither one is a same-surface head-to-head result, so T Money is treating them as context, not proof.
Put together, the read favors Starodubtseva. The price and the residual uncertainty in Seidel's dossier are why it stays a PASS rather than a play.
The verdict
T Money's model favors Yuliia Starodubtseva over Ella Seidel on rest quality, recent form against a ranked opponent, and a serve-and-return matchup that plays to Starodubtseva's strengths. At -208, though, the price doesn't clear the bar for an official play, so this stays a PASS on the card. T Money is 1144-617 (65%) across 1,761 graded picks to date.