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Guadalajara & Sao Paulo predictions, September 19, 2026: Samsonova vs Stearns, Jovic vs Stearns

By The Maiden Desk · September 19, 2026

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

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4 matches are on Saturday's card at Guadalajara and Sao Paulo, and we have a pick for every one of them. The headline act: Liudmila Samsonova against Peyton Stearns in the semifinal. Our calls: Samsonova over Stearns, Jovic over Stearns, Blinkova over Quevedo, Badosa over Podoroska.

September 18, 2026 results: 12-2 → how our picks graded, match by match.

Liudmila Samsonova vs Peyton Stearns

✗ Pick wrongWe got this one wrong. Our final number was 57% on Liudmila Samsonova; Peyton Stearns won 7-6 6-2.

Pick: Samsonova

Win probability: 57% Samsonova · Market: -141 · We call it in 2 sets (63%) · single likeliest score 2-0 (36%)

A spot in the next round is at stake on Saturday, when Liudmila Samsonova goes up against Peyton Stearns in the Guadalajara semifinal. Liudmila Samsonova is 6-4 across recent matches. Peyton Stearns has won 5 of the last 10.

The serve is where this match separates: Samsonova has been winning 69.3% of first-serve points to Stearns's 60.7%, and on hard that gap compounds fast. A tiebreak or two would surprise nobody, with Samsonova fractionally more likely to land the big points.

Iva Jovic vs Peyton Stearns

✓ Pick rightNailed it. We had Iva Jovic at 66% before the match, and Iva Jovic won 6-4 6-2.

Pick: Jovic

Win probability: 66% Jovic · Market: -293 · We call it in 2 sets (64%) · single likeliest score 2-0 (44%)

It all comes down to Saturday at Guadalajara, where Iva Jovic faces Peyton Stearns for the trophy. Iva Jovic has won 7 of the last 10. Peyton Stearns has won 3 in a row and 5 of the last 10 overall.

Iva Jovic simply rates much higher on hard, and our number follows from it. Jovic should have enough here, though Stearns has the tools to make the scoreboard uncomfortable.

Anna Blinkova vs Kaitlin Quevedo

✗ Pick wrongMissed it. We had Anna Blinkova at 54%, but Kaitlin Quevedo won 6-4 2-6 6-4.

Pick: Blinkova

Win probability: 54% Blinkova · Market: -144 · We call it in 2 sets (61%) · single likeliest score 2-0 (33%)

Anna Blinkova and Kaitlin Quevedo meet in the semifinal at Sao Paulo on Saturday. Anna Blinkova is 6-4 across recent matches. Kaitlin Quevedo is 5-5 across recent matches.

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

Nadia Podoroska vs Paula Badosa

✗ Pick wrongA miss: Paula Badosa at 73% lost to Nadia Podoroska (6-3 6-4).

Pick: Badosa

Win probability: 73% Badosa · Market: -394 · We call it in 2 sets (68%) · single likeliest score 2-0 (51%)

Saturday's Sao Paulo semifinal pits Nadia Podoroska against Paula Badosa on hard. Paula Badosa has won 3 in a row and 8 of the last 10 overall. Nadia Podoroska has won 4 of the last 10.

There's a wide gap in our ratings on hard, and our number follows from it. Anything other than a Badosa win would rank among the bigger surprises of the week.

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Updated Sep 18, 2026, 7:30 AM UTC. Picks are frozen before first serve and graded on the track record page — this page is never edited after the fact.

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