Tennis · Oct 16, 3:05 AM PDT

Fiona Ferro vs Leyre Romero Gormaz

62.5%Fiona Ferro

LOCKED Oct 16, 2:30 AM PDT

4/4 independent models select Fiona Ferro; all four oriented probabilities average 62.5%.

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FORECASTFiona Ferro

Estimated outcome probability. A likely winner can still be overpriced.

RELIABILITY4/4 model reports

19 reported evidence limits. Agreement alone does not establish accuracy.

MARKET VALUENot established

A probability difference alone does not account for forecast error, fees, spread, or available liquidity.

Why the models lean this way

These are reasons recorded by the models. They are not independently verified facts or measured causes of a probability change.

Gemini: Fiona Ferro is ranked 105th, 34 places higher than Leyre Romero Gormaz at 139th.
Grok: Fiona Ferro current rank 105 vs Leyre Romero Gormaz rank 139
Claude: Ferro ranked 105 vs Romero Gormaz 139 (34-spot gap)
GPT: Fiona Ferro has the higher current rank: 105 vs 139.

Read all four model reports

Gemini · Fiona Ferro · 62.0%

Fiona Ferro holds a ranking advantage over Leyre Romero Gormaz (105 vs 139) and has accumulated significantly more ranking points (722 vs 516). Ferro also boasts a strong season record of 39 wins and 18 losses, whereas Romero Gormaz's record is unavailable. Given the ranking gap and Ferro's proven match-winning form this season, she is the statistical favorite, though confidence is limited by missing data.

google/gemini-3.1-pro-preview · Oct 15, 5:01 PM PDT

Grok · Fiona Ferro · 63.0%

Surface form, injuries, head-to-head, travel, and market odds are unavailable as they are not supplied in the evidence package. Fiona Ferro is the higher-ranked player with superior ranking points and a verified 39-18 singles record for the season, while Leyre Romero Gormaz lacks a supplied win-loss record. These supplied facts indicate Ferro as the stronger player on current ranking evidence, supporting a moderate edge in a WTA quarterfinal.

xai/grok-4.3 · Oct 15, 5:01 PM PDT

Claude · Fiona Ferro · 61.0%

Ferro is the higher-ranked player (No. 105, 722 points) versus Romero Gormaz (No. 139, 516 points), and holds a strong supplied season record of 39-18. Both players are trending slightly upward in ranking (Ferro 108->105, Romero Gormaz 146->139), so neither shows a clear momentum edge. A 34-spot gap just outside the top 100 translates into only a modest favorite status, typically in the high-50s to low-60s percent range. Surface-specific form, injury status, head-to-head history, travel/fatigue, and market odds are explicitly unavailable in this evidence package, so the estimate rests solely on ranking and the one available season win-loss record.

anthropic/claude-opus-5 · Oct 15, 5:01 PM PDT

GPT · Fiona Ferro · 64.0%

Fiona Ferro is the stronger choice on the supplied immutable evidence. She has the better current ranking (No. 105 vs No. 139), more ranking points (722 vs 516), and a documented 2026 singles record of 39-18, which indicates substantial match volume and solid season-level performance. Both players have improved slightly from their previous rankings, but Ferro’s overall profile is stronger on the facts provided. Leyre Romero Gormaz’s season win-loss record is not supplied, which limits direct comparison, so the estimate should stay moderate rather than extreme. Surface form, injuries, head-to-head, travel, and market odds are unavailable in the evidence package.

openai/gpt-5.4 · Oct 15, 5:01 PM PDT

What remains uncertain

Leyre Romero Gormaz's season win-loss record is missing.
Surface-specific form, injuries, head-to-head, travel, and market odds are unavailable.
No head-to-head data supplied
No surface-specific form or venue details available
No injury status or travel information provided
No market odds or betting data included
Season singles record unavailable for Leyre Romero Gormaz
No surface-specific form or results supplied

What to watch next

Official result recorded. Review the original forecast and sources below.

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What changed before the lock

Oct 16, 2:30 AM PDT · final lock0.8 percentage points higher for Fiona Ferro
The pre-event probability state was locked atomically and is immutable.
Record hash
a1319446c97be3b3a72604f394d2d05b3a7ebe34c62e990991c3e4131059e2d8
Oct 15, 4:37 AM PDT · house adjudication completedFirst recorded forecast
First prospective probability state captured for this source and competition.
Record hash
07aa44b41205c2a68473b889df1bc2d3337fb9dde457410cab22be5ef79fa1ce

Reasons are shown as they were recorded. The ledger does not establish that a specific fact caused a probability change.

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Available source context

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Recorded outcome: (6) Leyre Romero Gormaz (ESP) bt (3) Fiona Ferro (FRA) 6-2 6-2

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