KalshiCheck availabilityKYC required2% feeVerified resolution dataFairly calibratedCurrent implied probability
Matteo Arnaldi 61.8%+11.0ptVig-adjusted: raw venue quotes summed above 100% and were normalized.
Market quality
80 / 100
High quality24h Volume
$38.5K
Liquidity
$38.9K
High liquidityBid / Ask
62.0% / 63.0%
Spread
1.0 pt
Tight spreadMarket data
Updated 19 minutes ago
Aug 27, 26, 5:15 PMSep 13, 26, 3:00 PM
Trends
Rules
If the named outcome wins the Arnaldi vs Duckworth professional tennis match in the 2026 US Open Men Singles Round Of 128 after a ball has been played, then the market resolves to Yes.
Settles via:ATP
- The following market refers to the Arnaldi vs Duckworth professional tennis match in the 2026 US Open Men Singles Round Of 128 after a ball has been played.
- If the match does not occur (signaled by a ball being played) due to a player injury, walkover, forfeiture, or any other cancellation (all before the match starts), the market will resolve to a fair price in accordance with the rules.
- If this match is postponed or delayed, the market will remain open and close after the rescheduled match has finished (within two weeks).
- Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League.
- All trademarks, logos, and brand names are the property of their respective owners.
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Frequently asked questions
- What are the current odds for Arnaldi vs Duckworth?
- Kalshi prices Matteo Arnaldi at 62% as of August 29, 2026.
- When does Arnaldi vs Duckworth resolve?
- Arnaldi vs Duckworth is scheduled to resolve on September 13, 2026.
- How is Arnaldi vs Duckworth settled?
- Kalshi settles this market as follows: If the named outcome wins the Arnaldi vs Duckworth professional tennis match in the 2026 US Open Men Singles Round Of 128 after a ball has been played, then the market resolves to Yes.