Pair #10030

Antecedent (if this happens)

KXPGATOUR-THOC26-BKOE

Will Brooks Koepka win the The Open Championship?

Series: KXPGATOUR
Entity: Brooks Koepka
Expiration: 2026-07-19T04:00:00Z
Volume: 969524

YES ask: 0.0100
NO ask: 0.9910
Last: 0.0100

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Rules

If Brooks Koepka wins the The Open Championship, then the market resolves to Yes.

Consequent (then it means this happened or will happen)

KXPGAMAJORWIN-26-BKOE

Who will win a PGA Tour Major in 2026?

Series: KXPGAMAJORWIN
Entity: Brooks Koepka
Expiration: 2026-12-31T15:00:00Z
Volume: 21585

YES ask: 0.0200
NO ask: 0.9900
Last: 0.0100

View on Kalshi

Rules

If Brooks Koepka wins any of the four golf major tournaments (The Masters, the PGA Championship, the U.S. Open, and The Open Championship) in 2026, then the market resolves to Yes.

LLM Screening

Confidence: high
Model: claude-sonnet-5
Screened: 2026-07-12T08:05:46Z
Code version: N/A

Reasoning: Winning The Open Championship (a major) necessarily means Koepka wins a major in 2026, but winning some major does not necessarily mean it was The Open Championship.

Strategy: Buy NO on antecedent + YES on consequent
Est. yield (after fees): -69.22% (negative yield)
Cost: $1.0110 + ~$0.0020 est. fees
Days to maturity: 4
Hurdle yield: 4.23%
Excess yield: -73.45% BELOW HURDLE

Human Review

Decision: confirmed
Reviewed at: 2026-07-12T12:36:01Z

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