KalshiCheck availabilityKYC requiredVerified resolution dataWell calibratedData quality warningNot meaningfully priced
Data as of Sep 29, 2026, 3:58 PM UTC · policy pm-quality-4
Current implied probability
Rei Sakamoto wins 2-0 33.3%Leader of 4 outcomes
Rei Sakamoto wins 2-0 33.3%Market quality
≤49 / 100
Low quality24h Volume
—
Open interest
—
Open interest unknownSpread
2.0 pt
Moderate spreadMarket data
Updated 9 minutes ago
Sep 28, 26, 4:20 AM UTCOct 13, 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)
Rules
If Matteo Arnaldi wins the Matteo Arnaldi vs Rei Sakamoto professional tennis match in the 2026 ATP Tokyo Round Of 32 by a set score of 2-0, 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.
