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Buenos Aires 3 Predictions & Picks — September 21, 2026

By The Maiden Desk · September 21, 2026

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

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One match is on Monday's card at Buenos Aires 3, and we have a pick for every one of them. The headline act: Gonzalo Villanueva against Ivan Justo Guido in the round of 32. Our calls: Guido over Villanueva.

Gonzalo Villanueva vs Ivan Justo Guido

✓ Pick rightNailed it. We had Ivan Justo Guido at 53% before the match, and Ivan Justo Guido won 6-4 3-6 6-1.

Pick: Guido

Win probability: 53% Guido · We call it in 3 sets (49%) · single likeliest score 2-0 (28%)

A spot in the next round is at stake on Monday, when Gonzalo Villanueva goes up against Ivan Justo Guido in the Buenos Aires 3 round of 32. Ivan Justo Guido is 5-5 across recent matches. Gonzalo Villanueva is 6-4 across recent matches.

Ivan Justo Guido simply rates much higher on clay, and our number follows from it. This one is close to a coin flip, and the lean toward Guido is exactly that — a lean.

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Updated Sep 21, 2026, 11:30 AM UTC. Picks are frozen before first serve and graded on the track record page — this page is never edited after the fact.