Tennis · Oct 16, 3:20 AM PDT

Rebeka Masarova vs Ane Mintegi Del Olmo

59.5%Ane Mintegi Del Olmo

LOCKED Oct 15, 6:30 AM PDT

4/4 independent models select Ane Mintegi Del Olmo; all four oriented probabilities average 59.5%.

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FORECASTAne Mintegi Del Olmo

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.

Grok: Ane Mintegi Del Olmo season record 35 wins 17 losses
Claude: Mintegi Del Olmo season record 35-17 (.673) vs Masarova 26-22 (.542)
Gemini: Ane Mintegi Del Olmo season record: 35 wins, 17 losses.
GPT: Ane Mintegi Del Olmo has the better 2026 singles record: 35-17 versus 26-22.

Read all four model reports

Grok · Ane Mintegi Del Olmo · 62.0%

Ane Mintegi Del Olmo holds a stronger season singles record (35-17) than Rebeka Masarova (26-22). Surface form, injuries, head-to-head, travel, and market odds are unavailable as they are not supplied in the evidence. No rankings are provided for either player.

xai/grok-4.3 · Oct 15, 5:30 AM PDT

Claude · Ane Mintegi Del Olmo · 56.0%

The only usable discriminating facts are 2026 season singles records: Mintegi Del Olmo is 35-17 (.673) while Masarova is 26-22 (.542). Neither player has a supplied current rank or ranking points, so the ranking channel is empty and the win-rate gap is the sole signal. A ~13-point win-percentage edge normally implies a modest favorite, but season records aggregate across event tiers that are not disclosed: a stronger raw record can simply reflect a lower-level schedule (ITF/125 versus main-tour draws), which is a common pattern for a younger player versus an established tour regular. That confound pulls the estimate back toward a coin flip. Surface-specific form, injury/fitness status, head-to-head history, travel/scheduling load, and market odds are explicitly unavailable in this package, so no adjustment for them is made.

anthropic/claude-opus-5 · Oct 15, 5:30 AM PDT

Gemini · Ane Mintegi Del Olmo · 62.0%

Ane Mintegi Del Olmo has a superior season win-loss record (35-17, 67.3%) compared to Rebeka Masarova (26-22, 54.2%). Without ranking data to contextualize the level of competition, Mintegi Del Olmo is favored based on her higher win rate. Surface form, injuries, head-to-head, travel, and market odds are unavailable.

google/gemini-3.1-pro-preview · Oct 15, 5:30 AM PDT

GPT · Ane Mintegi Del Olmo · 58.0%

Using only the supplied evidence, the main differentiator is the 2026 season singles record. Ane Mintegi Del Olmo is 35-17, a materially stronger record than Rebeka Masarova’s 26-22. That implies a higher season-long win rate and supports making Ane the modest favorite. No current ranking is available for either player, so ranking cannot separate them. Surface form, injuries, head-to-head, travel, and market odds are unavailable in the evidence package, so the estimate should stay conservative rather than aggressive.

openai/gpt-5.4 · Oct 15, 5:30 AM PDT

What remains uncertain

No current or previous rankings supplied
No surface-specific form available
No head-to-head data supplied
No injury or travel information supplied
Surface-specific form unavailable
Injury and fitness status unavailable
Head-to-head record unavailable
Travel and scheduling/rest information unavailable

What to watch next

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

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What changed before the lock

Oct 15, 6:30 AM PDT · final lock0.8 percentage points higher for Ane Mintegi Del Olmo
The pre-event probability state was locked atomically and is immutable.
Record hash
0aa7f53227e18d6516dde3c70fca05e40a8816b0cb6fb0b76ad9f0af703673de
Oct 13, 10:30 PM PDT · house adjudication completedFirst recorded forecast
First prospective probability state captured for this source and competition.
Record hash
0234c1498d646efe3a3585a8fc4375a4f62fce73ed5376e2cf04034c7f04ae16

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

site.api.espn.com ↗sports.core.api.espn.com ↗sports.core.api.espn.com ↗sports.core.api.espn.com ↗sports.core.api.espn.com ↗site.api.espn.com ↗

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Recorded outcome: Rebeka Masarova (SUI) bt Ane Mintegi Del Olmo (ESP) 6-4 6-7 (1-7) 6-3

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