Pair #35

Antecedent (if this happens)

KXFOMEN-26-SHE

Will Ben Shelton win the French Open?

Series: KXFOMEN
Entity: Ben Shelton
Expiration: 2026-06-10T17:00:00Z
Volume: 389880

YES ask: 0.0100
NO ask: 1.0000
Last: 0.0100

View on Kalshi

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

KXATPGRANDSLAM-26-BSHE

Will Ben Shelton win a Tennis Grand Slam in 2026?

Series: KXATPGRANDSLAM
Entity: Ben Shelton
Expiration: 2026-12-31T15:00:00Z
Volume: 10226

YES ask: 0.1100
NO ask: 0.9600
Last: 0.0400

View on Kalshi

Rules If Ben Shelton 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: 2026-03-16T22:51:04Z

Reasoning: Winning the French Open is a Grand Slam victory, so it necessarily implies winning a Grand Slam in 2026. The reverse does not hold — Shelton could win a different major.

Strategy: Buy NO on antecedent + YES on consequent
Yield: N/A
Cost: $1.1100
Days to maturity: N/A
Hurdle yield: N/A
Excess yield: N/A

Human Review

Decision: confirmed
Reviewed at: 2026-03-16T23:07:10Z

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