Antecedent (if this happens)
KXWTAGRANDSLAM-26-MKEY
Will Madison Keys win a Tennis Grand Slam in 2026?
Series: KXWTAGRANDSLAM
Entity: Madison Keys
Expiration: 2026-12-31T15:00:00Z
Volume: 1372
YES ask: 0.1500
NO ask: 0.9800
Last: 0.1600
View on Kalshi
Rules
If Madison Keys 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)
KXWTAMATCH-26MAR22ZHEKEY-KEY
Will Madison Keys win the Zheng vs Keys : Round Of 32 match?
Series: KXWTAMATCH
Entity: Madison Keys
Expiration: 2026-03-22T17:00:00Z
Volume: 6895
YES ask: 0.5700
NO ask: 0.4400
Last: 0.5600
View on Kalshi
Rules
If Madison Keys wins the Zheng vs Keys professional tennis match in the 2026 WTA Miami Round Of 32 after a ball has been played, then the market resolves to Yes.
Confidence: none
Model: claude-sonnet-4-6
Screened: 2026-03-22T08:01:21Z
Reasoning: Winning a Grand Slam in 2026 and winning a Miami Open R32 match are entirely separate events with no logical dependency.
Strategy: Buy NO on antecedent + YES on consequent
Yield:
-52.81%
(negative yield)
Cost:
$1.5500
Days to maturity:
213
Hurdle yield:
4.28%
Excess yield:
-57.09%
BELOW HURDLE