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Tennis · Oct 15, 3:10 AM PDT

Alex de Minaur vs Alexander Zverev

68.8%Alexander Zverev
LOCKED Oct 15, 2:30 AM PDT

4/4 independent models select Alexander Zverev; all four oriented probabilities average 68.75%.

YOUR RESEARCH TASK

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A documented difference, its timing, and limits.

  1. Confirm every probability refers to the same outcome.
  2. Check the forecast lock and market observation times.
  3. Record the difference and what it does not establish.
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FORECASTAlexander Zverev

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

RELIABILITY4/4 model reports

18 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: Alexander Zverev is ranked #2 with 9720 points, compared to Alex de Minaur at #9 with 3430 points.
  • Grok: Zverev ATP rank 2 versus de Minaur rank 9
  • Claude: Zverev ranked No. 2 vs de Minaur No. 9
  • GPT: Zverev is ranked No. 2; de Minaur is ranked No. 9.
Read all four model reports

Gemini · Alexander Zverev · 72.0%

Alexander Zverev holds a significant advantage in both ranking and season performance. Ranked #2 with nearly triple the ranking points of #9 Alex de Minaur, Zverev also boasts a higher win percentage (79% vs 68%) and more titles this season. Without head-to-head or surface-specific data, Zverev's overall statistical superiority makes him the clear favorite.

google/gemini-3.1-pro-preview · Oct 14, 5:02 PM PDT

Grok · Alexander Zverev · 68.0%

Zverev's substantially higher ranking, greater ranking points, superior win-loss record, and additional title indicate a clear edge on the supplied facts alone. The probability is therefore estimated above 50 percent for Zverev while remaining conservative given the narrow evidence scope.

xai/grok-4.3 · Oct 14, 5:02 PM PDT

Claude · Alexander Zverev · 64.0%

Zverev holds a clear edge on both supplied metrics: he is ranked No. 2 with 9,720 ranking points versus de Minaur's No. 9 and 3,430 points (nearly a 3x points gap), and his season record of 58-15 (79.5% wins) exceeds de Minaur's 40-19 (67.8%). Ranking-points gaps of this size on a hard-court Masters quarterfinal typically translate to roughly a 60-70% win probability for the higher-ranked player. De Minaur is a top-10 player with solid form and a slight upward ranking move (10 to 9), which caps the favorite's edge well short of dominance. Surface-specific form, injury status, head-to-head history, travel/scheduling load, and market odds are not supplied in the evidence package, so this estimate rests solely on current rank and season win-loss record.

anthropic/claude-opus-5 · Oct 14, 5:02 PM PDT

GPT · Alexander Zverev · 71.0%

Using only the supplied immutable evidence, Alexander Zverev has the stronger profile: rank No. 2 versus No. 9, substantially more ranking points (9720 vs 3430), and a better 2026 singles record (58-15 vs 40-19), plus more titles this season (2 vs 1). Those facts point clearly to Zverev as the more likely winner. Because the evidence package explicitly limits scope to current ranking and season record only, this estimate cannot account for potentially important match-specific factors. Surface form, injuries, head-to-head, travel, and market odds are unavailable here.

openai/gpt-5.4 · Oct 14, 5:02 PM PDT

What remains uncertain

  • Surface form, injuries, head-to-head, travel, and market odds are unavailable.
  • Surface form unavailable per evidence scope
  • Injuries not supplied
  • Head-to-head not supplied
  • Travel details unavailable
  • Market odds not supplied
  • No head-to-head data supplied
  • No surface-specific (hard court) form or recent-match results

What to watch next

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

Open the event and source context →

What changed before the lock

  1. 0.3 percentage points higher for Alexander Zverev

    The pre-event probability state was locked atomically and is immutable.

    Record hash8e978f57fab3f4a05310c41c5f90ad6964bb62c910c7d28ea0767d254d8b3b59
  2. First recorded forecast

    First prospective probability state captured for this source and competition.

    Record hash9063ec0019ccdd3c764e4455c821be920683f69bb01defc3807757f02007b595

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

The saved method comparison

All probabilities below refer to Alexander Zverev. Model inputs were fixed at Oct 15, 2:30 AM PDT. The market was observed at Oct 15, 2:25 AM PDT.

Current TORK68.8%
Simple average68.8%
Calibrated average70.5%
Kalshi66.0%
Comparison record

Saved Oct 15, 2:34 AM PDT. This is a research comparison; no method has been promoted.

6e361c2b240f9c213112229385ca48dc138d3d678c17fcecefb9aa870dfe726d
Inspect the methods and progress →

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

These links provide event context. They do not verify every claim in a model report.

Recorded outcome: (1) Alexander Zverev (GER) bt (9) Alex de Minaur (AUS) 6-4 6-4

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