Antecedent (if this happens)
KXATPGRANDSLAM-26-FTIA
Will Frances Tiafoe win a Tennis Grand Slam in 2026?
Series: KXATPGRANDSLAM
Entity: Frances Tiafoe
Expiration: 2026-12-31T15:00:00Z
Volume: 556
YES ask: 0.0900
NO ask: 1.0000
Last: 0.0100
View on Kalshi
Rules
If Frances Tiafoe 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)
KXMOMEN-26-TIA
Will Frances Tiafoe win the ATP Miami Open?
Series: KXMOMEN
Entity: Frances Tiafoe
Expiration: 2026-03-29T19:30:00Z
Volume: 28318
YES ask: 0.0400
NO ask: 0.9900
Last: 0.0400
View on Kalshi
Rules
If Frances Tiafoe wins the 2026 ATP Miami Open professional tennis tournament, then the market resolves to Yes.
Confidence: none
Model: claude-sonnet-4-6
Screened: 2026-03-26T08:06:00Z
Reasoning: The Miami Open is not a Grand Slam tournament. Winning Miami does not imply winning a Grand Slam, and winning a Grand Slam does not imply winning Miami.
Strategy: Buy NO on antecedent + YES on consequent
Yield:
-6.47%
(negative yield)
Cost:
$1.0400
Days to maturity:
214
Hurdle yield:
4.28%
Excess yield:
-10.75%
BELOW HURDLE