Antecedent (if this happens)
KXPGATOP20-THOC26-JSPA
The Open Championship: Will J.J. Spaun finish top 20?
Series: KXPGATOP20
Entity: J.J. Spaun
Expiration: 2026-08-02T04:00:00Z
Volume: 1704
YES ask: 0.2700
NO ask: 0.7400
Last: 0.2700
View on Kalshi
Rules
If J.J. Spaun finishes in the top 20 (including ties) in the 2026 The Open Championship, then the market resolves to Yes.
Consequent (then it means this happened or will happen)
KXPGATOP40-THOC26-JSPA
The Open Championship: Will J.J. Spaun finish top 40?
Series: KXPGATOP40
Entity: J.J. Spaun
Expiration: 2026-08-02T04:00:00Z
Volume: 478
YES ask: 0.4900
NO ask: 0.9700
Last: 0.4900
View on Kalshi
Rules
If J.J. Spaun finishes in the top 40 (including ties) in the 2026 The Open Championship, then the market resolves to Yes.
Confidence: high
Model: claude-sonnet-5
Screened: 2026-07-14T08:00:36Z
Code version: ecbe685
Reasoning: [structural reuse of KXPGATOP20-THOC26-JROS/KXPGATOP40-THOC26-JROS] A top20 finish is necessarily also a top40 finish.
Strategy: Buy NO on antecedent + YES on consequent
Est. yield (after fees):
-99.09%
(negative yield)
Cost:
$1.2300
+ ~$0.0310 est. fees
Days to maturity:
18
Hurdle yield:
4.23%
Excess yield:
-103.32%
BELOW HURDLE