KalshiCheck availabilityKYC requiredVerified resolution dataWell calibratedCurrent implied probability
Over 23.5 games 46%Market line of 3 lines
Over 23.5 games 46%Market quality
53 / 100
Medium quality24h Volume
$531.9
Open interest
$531.9
Low open interestSpread
1.0 pt
Tight spreadMarket data
Updated 1 minute ago
Sep 28, 26, 10:45 AM UTCOct 14, 26, 2:00 AM UTC
Trends
Venue terms
Source: Kalshi
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Early close:
- Yes
- Settlement timer:
- 5m (informational)
Related Markets
Related questions for context, not a comparison of equivalent contracts.
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KalshiRules
If the number of completed games in the full match is above 18.5 in the Matteo Arnaldi vs Rei Sakamoto professional tennis match in the 2026 ATP Tokyo Round Of 32, then the market resolves to Yes.
Settles via:ATP
- The following market refers to the Matteo Arnaldi vs Rei Sakamoto professional tennis match in the 2026 ATP Tokyo Round Of 32.
- 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).
- If a retirement occurs, all markets that can be unconditionally settled based on play already completed will resolve accordingly.
- Any markets that cannot be unconditionally settled will resolve to Fair Market Price, as determined at the sole discretion of the Exchange.
