Antecedent (if this happens)
KXATPGRANDSLAM-26-JSIN
Will Jannik Sinner win a Tennis Grand Slam in 2026?
Series: KXATPGRANDSLAM
Entity: Jannik Sinner
Expiration: 2026-12-31T15:00:00Z
Volume: 63442
YES ask: 0.7800
NO ask: 0.2400
Last: 0.7600
View on Kalshi
Rules
If Jannik Sinner 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.
Consequent (then it means this happened or will happen)
KXATPMATCH-26MAR25TIASIN-SIN
Will Jannik Sinner win the Tiafoe vs Sinner : Quarterfinal match?
Series: KXATPMATCH
Entity: Jannik Sinner
Expiration: 2026-03-25T20:00:00Z
Volume: 47169
YES ask: 0.9500
NO ask: 0.0700
Last: 0.9300
View on Kalshi
Rules
If Jannik Sinner wins the Tiafoe vs Sinner professional tennis match in the 2026 ATP Miami Quarterfinal after a ball has been played, then the market resolves to Yes.
Confidence: none
Model: claude-sonnet-4-6
Screened: 2026-03-25T08:00:34Z
Reasoning: Winning a Grand Slam does not require winning a Miami Open quarterfinal, and winning a Miami Open quarterfinal does not imply winning a Grand Slam. These are unrelated events.
Strategy: Buy NO on antecedent + YES on consequent
Yield:
-27.09%
(negative yield)
Cost:
$1.1900
Days to maturity:
201
Hurdle yield:
4.31%
Excess yield:
-31.40%
BELOW HURDLE