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San Marino Predictions & Picks — July 31, 2026

By The Maiden Desk · July 31, 2026

Every pick below gets graded after the match — wins and misses both stay up.

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4 matches are on Friday's card at San Marino, and we have a pick for every one of them. The headline act: Alexandre Muller against Mili Poljicak in the quarterfinal. Our calls: Poljicak over Muller, Varillas over Skatov, Acosta over Angelo, Monteiro over Gaubas. As always, every pick below is graded after the fact and stays up, right or wrong.

The boldest call on the card: Monteiro over Gaubas — the market disagrees with us there.

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Alexandre Muller vs. Mili Poljicak

Friday's San Marino quarterfinal pits Alexandre Muller against Mili Poljicak on clay. Mili Poljicak comes in at 6 wins from the last ten. Alexandre Muller is 2-8 across recent matches.

Hold strength tells the story — 70.4% versus 67.2% on first-serve points in Poljicak's favor. This one is close to a coin flip, and the lean toward Poljicak is exactly that — a lean.

Pick: PoljicakUpset call

Upset call — the market favors Muller; our numbers say Poljicak.

Win probability: 50% Poljicak · Sets: 3 (51%) · most likely score 2-1 (26%)

✓ Pick rightNailed it. We had Mili Poljicak at 50% before the match, and Mili Poljicak won 7-6 6-7 7-5.

Juan Pablo Varillas vs. Timofey Skatov

A spot in the next round is at stake on Friday, when Juan Pablo Varillas goes up against Timofey Skatov in the San Marino quarterfinal. Juan Pablo Varillas has won 6 of the last 10. Timofey Skatov has won 5 of the last 10.

The underlying stats are tight across the board — this is a matchup decided by a handful of points. Varillas comes in off a compressed schedule; Skatov comes in off a compressed schedule. This one is close to a coin flip, and the lean toward Varillas is exactly that — a lean.

Pick: VarillasUpset call

Upset call — the market favors Skatov; our numbers say Varillas.

Win probability: 51% Varillas · Sets: 3 (49%) · most likely score 2-0 (26%)

✓ Pick rightNailed it. We had Juan Pablo Varillas at 51% before the match, and Juan Pablo Varillas won 6-4 6-4.

Facundo Diaz Acosta vs. Juan Carlos Prado Angelo

Facundo Diaz Acosta and Juan Carlos Prado Angelo meet in the quarterfinal at San Marino on Friday. Facundo Diaz Acosta comes in at 7 wins from the last ten. Juan Carlos Prado Angelo comes in at 3 wins from the last ten.

There's a wide gap in our ratings on clay, and our number follows from it. The edge belongs to Acosta — real, but not the kind you take for granted at this level.

Pick: Acosta

Win probability: 69% Acosta · Sets: 3 (44%) · most likely score 2-0 (40%)

✓ Pick rightNailed it. We had Facundo Diaz Acosta at 69% before the match, and Facundo Diaz Acosta won 6-2 4-6 6-1.

Thiago Monteiro vs. Vilius Gaubas

A spot in the next round is at stake on Friday, when Thiago Monteiro goes up against Vilius Gaubas in the San Marino quarterfinal. Thiago Monteiro has won 7 of the last 10. Vilius Gaubas comes in at 3 wins from the last ten.

Hold strength tells the story — 72% versus 65% on first-serve points in Monteiro's favor. Monteiro comes in off a compressed schedule. Expect resistance, but the match-level math tilts clearly toward Monteiro.

Pick: MonteiroUpset call

Upset call — the market makes Gaubas the favorite; our numbers say Monteiro.

Win probability: 61% Monteiro · Sets: 3 (51%) · most likely score 2-1 (31%)

✗ Pick wrongMissed it — and it stays on the record. We had Thiago Monteiro at 61%, but Vilius Gaubas won 7-6 7-6.

Updated Jul 31, 2026, 3:30 AM UTC. Picks are frozen before first serve and graded on the track record page — this page is never edited after the fact.