Antecedent (if this happens)
KXPGATOP10-MAST26-HMAT
Masters Tournament: Will Hideki Matsuyama finish top 10?
Series: KXPGATOP10
Entity: Hideki Matsuyama
Expiration: 2026-04-13T02:00:00Z
Volume: 41050
YES ask: 0.1100
NO ask: 0.9100
Last: 0.1100
View on Kalshi
Rules
If Hideki Matsuyama finishes in the top 10 (including ties) in the 2026 Masters Tournament, then the market resolves to Yes.
Consequent (then it means this happened or will happen)
KXPGATOP20-MAST26-HMAT
Masters Tournament: Will Hideki Matsuyama finish top 20?
Series: KXPGATOP20
Entity: Hideki Matsuyama
Expiration: 2026-04-13T02:00:00Z
Volume: 70192
YES ask: 0.4500
NO ask: 0.5900
Last: 0.4100
View on Kalshi
Rules
If Hideki Matsuyama finishes in the top 20 (including ties) in the 2026 Masters Tournament, then the market resolves to Yes.
Confidence: high
Model: claude-sonnet-4-6
Screened: 2026-04-04T08:01:14Z
Reasoning: Same tournament (Masters). If Matsuyama finishes top 10, he necessarily finishes top 20. The reverse does not hold — top 20 does not guarantee top 10.
Strategy: Buy NO on antecedent + YES on consequent
Yield:
N/A
Cost:
$1.3600
Days to maturity:
N/A
Hurdle yield:
N/A
Excess yield:
N/A