Pair #8791

Antecedent (if this happens)

KXPGATOP10-THOC26-XSCH

The Open Championship: Will Xander Schauffele finish top 10?

Series: KXPGATOP10
Entity: Xander Schauffele
Expiration: 2026-08-02T04:00:00Z
Volume: 7716

YES ask: 0.2600
NO ask: 0.7500
Last: 0.2600

View on Kalshi

Rules If Xander Schauffele finishes in the top 10 (including ties) in the 2026 The Open Championship, then the market resolves to Yes.
Consequent (then it means this happened or will happen)

KXPGATOP20-THOC26-XSCH

The Open Championship: Will Xander Schauffele finish top 20?

Series: KXPGATOP20
Entity: Xander Schauffele
Expiration: 2026-08-02T04:00:00Z
Volume: 80378

YES ask: 0.4200
NO ask: 0.5900
Last: 0.4200

View on Kalshi

Rules If Xander Schauffele finishes in the top 20 (including ties) in the 2026 The Open Championship, then the market resolves to Yes.
LLM Screening

Confidence: high
Model: rule-screener-v1
Screened: 2026-07-11T07:45:44Z
Code version: N/A

Reasoning: rule: KXPGATOP10 is a strict subset of KXPGATOP20 for the same player and tournament

Strategy: Buy NO on antecedent + YES on consequent
Est. yield (after fees): -98.01% (negative yield)
Cost: $1.1700 + ~$0.0302 est. fees
Days to maturity: 17
Hurdle yield: 4.23%
Excess yield: -102.24% BELOW HURDLE

Human Review

Decision: confirmed
Reviewed at: 2026-07-11T13:09:38Z

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