Pair #8

Antecedent (if this happens)

KXFOWOMEN-26-OSA

Will Naomi Osaka win the French Open?

Series: KXFOWOMEN
Entity: Naomi Osaka
Expiration: 2026-06-10T17:00:00Z
Volume: 164736

YES ask: 0.0500
NO ask: 0.9600
Last: 0.0500

View on Kalshi

Rules If Naomi Osaka wins the 2026 Women's French Open professional tennis tournament, then the market resolves to Yes.
Consequent (then it means this happened or will happen)

KXWTAGRANDSLAM-26-NOSA

Will Naomi Osaka win a Tennis Grand Slam in 2026?

Series: KXWTAGRANDSLAM
Entity: Naomi Osaka
Expiration: 2026-12-31T15:00:00Z
Volume: 3272

YES ask: 0.1400
NO ask: 0.9800
Last: 0.0200

View on Kalshi

Rules If Naomi Osaka wins a tennis major (the Australian Open, the U.S. Open, the French Open, or Wimbledon) before Dec 31, 2026, then the market resolves to Yes.
LLM Screening

Confidence: high
Model: claude-sonnet-4-6
Screened: 2026-03-16T22:50:30Z

Reasoning: If Osaka wins the French Open, she has won a Grand Slam. The reverse does not hold — she could win a different major.

Strategy: Buy NO on antecedent + YES on consequent
Yield: N/A
Cost: $1.1000
Days to maturity: N/A
Hurdle yield: N/A
Excess yield: N/A

Human Review

Decision: confirmed
Reviewed at: 2026-03-16T23:07:08Z

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