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US Open Predictions & Picks — September 4, 2026

By The Maiden Desk · September 4, 2026

Every number below was fixed before the match and graded against the official result.

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8 matches are on Friday's card at US Open, and we have a pick for every one of them. The headline act: Alex Michelsen against Daniel Merida Aguilar in the round of 32. Our calls: Michelsen over Aguilar, Tiafoe over Vacherot, Paul over Bublik, Lehecka over Tsitsipas, Medvedev over Rinderknech, Navone over Etcheverry, and 2 more.

Alexander Zverev vs. Quentin Halys

✓ Pick rightNailed it. We had Alexander Zverev at 78% before the match, and Alexander Zverev won 6-4 4-6 7-6 6-7 6-3.

Pick: Zverev

Win probability: 78% Zverev · Market: -443 · Sets: 3 (52%) · most likely score 3-0 (44%)

Friday's US Open round of 64 pits Alexander Zverev against Quentin Halys on hard. Alexander Zverev comes in at 7 wins from the last ten. Quentin Halys comes in at 8 wins from the last ten.

Alexander Zverev simply rates much higher on hard, and our number follows from it. Anything other than a Zverev win would rank among the bigger surprises of the week.

Carlos Alcaraz vs. Yibing Wu

✓ Pick rightThis one lands on the correct side of the ledger: 85% on Carlos Alcaraz, who won 6-3 6-4 6-1.

Pick: Alcaraz

Win probability: 85% Alcaraz · Market: -1072 · Sets: 3 (66%) · most likely score 3-0 (59%)

Friday's US Open round of 32 pits Carlos Alcaraz against Yibing Wu on hard. Carlos Alcaraz has won 7 of the last 10. Yibing Wu is 3-7 across recent matches.

Carlos Alcaraz simply rates much higher on hard, and our number follows from it. If Alcaraz plays anywhere close to a normal level, this ends in relatively comfortable fashion.

Arthur Rinderknech vs. Daniil Medvedev

✓ Pick rightThis one lands on the correct side of the ledger: 63% on Daniil Medvedev, who won 6-4 6-4 6-4.

Pick: Medvedev

Win probability: 63% Medvedev · Market: -256 · Sets: 4+ (56%) · most likely score 3-0 (30%)

A spot in the next round is at stake on Friday, when Arthur Rinderknech goes up against Daniil Medvedev in the US Open round of 32. Daniil Medvedev has won 5 of the last 10. Arthur Rinderknech comes in at 5 wins from the last ten.

There's a wide gap in our ratings on hard, and our number follows from it. Expect resistance, but the match-level math tilts clearly toward Medvedev.

Jiri Lehecka vs. Stefanos Tsitsipas

✗ Pick wrongA miss: Jiri Lehecka at 60% lost to Stefanos Tsitsipas (2-6 6-1 7-6 6-1).

Pick: Lehecka

Win probability: 60% Lehecka · Market: -155 · Sets: 4+ (61%) · most likely score 3-0 (27%)

A spot in the next round is at stake on Friday, when Jiri Lehecka goes up against Stefanos Tsitsipas in the US Open round of 32. Jiri Lehecka has won 6 of the last 10. Stefanos Tsitsipas is 6-4 across recent matches.

There's a wide gap in our ratings on hard, and our number follows from it. Expect resistance, but the match-level math tilts clearly toward Lehecka.

Alexander Bublik vs. Tommy Paul

✓ Pick rightNailed it. We had Tommy Paul at 56% before the match, and Tommy Paul won 6-4 3-6 6-7 6-1 6-3.

Pick: Paul

Win probability: 56% Paul · Market: -159 · Sets: 4+ (65%) · most likely score 3-0 (23%)

Alexander Bublik and Tommy Paul meet in the round of 32 at US Open on Friday. Tommy Paul has won 6 of the last 10. Alexander Bublik has won 7 of the last 10.

There's a wide gap in our ratings on hard, and our number follows from it. This one is close to a coin flip, and the lean toward Paul is exactly that — a lean.

Frances Tiafoe vs. Valentin Vacherot

✓ Pick rightNailed it. We had Frances Tiafoe at 54% before the match, and Frances Tiafoe won 6-4 6-2 6-4.

Pick: Tiafoe

Win probability: 54% Tiafoe · Market: -165 · Sets: 4+ (64%) · most likely score 3-1 (21%)

Friday's US Open round of 32 pits Frances Tiafoe against Valentin Vacherot on hard. Frances Tiafoe has won 7 of the last 10. Valentin Vacherot has won 4 of the last 10.

Frances Tiafoe is clearly higher-rated on hard — our number puts Tiafoe around 54%. A tiebreak or two would surprise nobody, with Tiafoe fractionally more likely to land the big points.

Alex Michelsen vs. Daniel Merida Aguilar

✓ Pick rightThis one lands on the correct side of the ledger: 54% on Alex Michelsen, who won 7-6 6-4 6-3.

Pick: Michelsen

Win probability: 54% Michelsen · Market: -176 · Sets: 4+ (71%) · most likely score 3-1 (21%)

Alex Michelsen and Daniel Merida Aguilar meet in the round of 32 at US Open on Friday. Alex Michelsen comes in at 7 wins from the last ten. Daniel Merida Aguilar is 8-2 across recent matches.

Michelsen's 69.9% behind the first serve (against 64.6% for Aguilar) means break chances should be scarce in one direction. Little separates them; Michelsen gets the nod on the finest of margins.

Mariano Navone vs. Tomas Martin Etcheverry

✗ Pick wrongMissed it. We had Mariano Navone at 50%, but Tomas Martin Etcheverry won 6-4 6-4 6-3.

Pick: Navone

Win probability: 50% Navone · Market: -100 · Sets: 4+ (64%) · most likely score 3-1 (19%)

A spot in the next round is at stake on Friday, when Mariano Navone goes up against Tomas Martin Etcheverry in the US Open round of 32. Mariano Navone has won 6 of the last 10. Tomas Martin Etcheverry is 4-6 across recent matches.

On paper it's close: comparable ratings, comparable serve numbers, small margins everywhere. Little separates them; Navone gets the nod on the finest of margins.

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Updated Sep 3, 2026, 12:31 AM UTC. Picks are frozen before first serve and graded on the track record page — this page is never edited after the fact.