Antecedent (if this happens)
KXATP1RANK-26DEC31-JSIN
Who will be the #1 ranked ATP men's singles player on Dec 31, 2026?
Series: KXATP1RANK
Entity: Jannik Sinner
Expiration: 2026-12-31T17:00:00Z
Volume: 3337
YES ask: 0.9600
NO ask: 0.9900
Last: 0.9400
View on Kalshi
Rules
If Jannik Sinner is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.
Consequent (then it means this happened or will happen)
KXFOMEN-26-SIN
Will Jannik Sinner win the French Open?
Series: KXFOMEN
Entity: Jannik Sinner
Expiration: 2026-06-10T17:00:00Z
Volume: 1165209
YES ask: 0.7500
NO ask: 0.2600
Last: 0.7500
View on Kalshi
Rules
If Jannik Sinner wins the 2026 Men's French Open professional tennis tournament, then the market resolves to Yes.
Confidence: none
Model: claude-sonnet-4-6
Screened: 2026-04-01T08:01:45Z
Reasoning: Being #1 ranked on Dec 31 does not require winning the French Open. Winning the French Open does not guarantee being #1 on Dec 31. No logical necessity in either direction.
Strategy: Buy NO on antecedent + YES on consequent
Yield:
-61.29%
(negative yield)
Cost:
$1.7400
Days to maturity:
213
Hurdle yield:
4.28%
Excess yield:
-65.57%
BELOW HURDLE