Our Mirra Andreeva vs Anastasia Potapova prediction for this US Open fourth round starts with a clear side and ends with an empty bet slip. Andreeva is the pick to reach the quarterfinals when the two meet Monday, September 7 at 11:00 AM ET. The market has her at minus six hundred sixty seven, and that number is exactly why T Money is filing this one as a PASS rather than an official play.
This is not a case of the model shrugging. It ran the current form, the serve and return splits, and the head to head, and it landed on Andreeva with real conviction. The problem is the price already knows what we know, and then some.
Why T Money likes Andreeva
Andreeva has not dropped a set through three rounds, beating Janice Tjen, Eva Lys, and Nikola Bartunkova in straight sets. The Bartunkova match is the one that stands out. Andreeva won just over half the total points, but her second serve points won jumped to sixty one and a half percent, well clear of her twelve month hard court baseline near forty eight percent. That is a player whose delivery is trending up right when it matters.
The season long hard court rates back that up. Over the last twelve months Andreeva has held seventy five percent of her service games and broken forty three percent of return games against a solidly ranked slate of opponents. Potapova, on the same surface, holds sixty two percent and breaks thirty six percent against a lighter slate. Line those two rates up against each other and the projected gap favors Andreeva in both directions, on serve and on return.
The head to head points the same way. The two played a US Open second round match on hard courts about a year ago, and Andreeva won it in straight sets, six one, six three. That is the meeting that should carry weight here, since it was played on the same surface at the same event. A more recent clay final between them in Linz this spring, which Potapova won in three sets, is a real result and worth noting as a style clue, but it came on a different surface and cannot be treated as the blueprint for Monday.
The case against
The honest risk in this pick is that Potapova just showed she can play above her own numbers. Her third round win over tenth seed Amanda Anisimova was her third top ten win of the year and her eighth Grand Slam match win of the season, a career high. She took time away from Anisimova on both wings for stretches of that match, the same version of Potapova that opened her Linz final with a six one set. That flat, first strike version of her is specifically the archetype that shows up on Andreeva's list of tougher hard court losses.
But look closer at how that Anisimova win actually happened. Potapova won barely fifty five percent of total points, made just under sixty one percent of first serves, and won her first and second serve points at rates below her own season averages. She faced sixteen break points in that match alone and got bailed out because Anisimova converted only three of them. That is a result that came with real quality moments, but also with a service game that leaked pressure the whole way. Andreeva's return game, sitting at forty three percent of return games won on hard courts this year, is built to apply exactly that kind of pressure for a full match rather than stretches of one.
The number that matters
Andreeva at minus six hundred sixty seven is the reason this stays a PASS. T Money's stake rule requires the model's own read on a side to clear the market's implied price by a real margin before it becomes an official bet. A favorite this heavy leaves almost no room for that gap to exist, no matter how clean the underlying case looks. Backing a price like this only pays off in small increments and gets wiped out fast by a single upset, so the model treats it as an unbettable number rather than a soft version of a play.
This is also not a case of hedging a genuine lean into a false PASS. The side is real. The price is just too expensive to act on.
The verdict
T Money's read is Andreeva in this one, built on a hotter second serve number, a stronger season long hold and break rate, and a same surface head to head that already went her way. None of that changes the fact that minus six hundred sixty seven does not leave enough room for an official bet. This is a PASS: a side we believe in, at a price we are not paying.