Antecedent (if this happens)
KXPGATOP10-MAST26-BKOE
Masters Tournament: Will Brooks Koepka finish top 10?
Series: KXPGATOP10
Entity: Brooks Koepka
Expiration: 2026-04-13T02:00:00Z
Volume: 149990
YES ask: 0.2600
NO ask: 0.7500
Last: 0.2600
View on Kalshi
Rules
If Brooks Koepka 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-BKOE
Masters Tournament: Will Brooks Koepka finish top 20?
Series: KXPGATOP20
Entity: Brooks Koepka
Expiration: 2026-04-13T02:00:00Z
Volume: 135268
YES ask: 0.6300
NO ask: 0.4100
Last: 0.6300
View on Kalshi
Rules
If Brooks Koepka 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: 2026-04-03T08:01:34Z
Reasoning: Finishing top 10 necessarily means finishing top 20 (top 10 is a subset of 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:
$1.3800
Days to maturity:
N/A
Hurdle yield:
N/A
Excess yield:
N/A