Erste Bank Open: Tallon Griekspoor vs Brandon Nakashima
As of Sun, 25 Oct 2026 15:23:46 UTC, Polymarket traders price Match O/U 22.5 (55.0%), Match O/U 21.5 (52.0%), Completed Match (50.5%). The market has $3K in volume and closes on Tue, 03 Nov 2026.
Updated:
Current odds
| Outcome | Chance | Yes price | No price |
|---|---|---|---|
| Match O/U 22.5 | 55.0% | 55.0¢ | 45.0¢ |
| Match O/U 21.5 | 52.0% | 52.0¢ | 48.0¢ |
| Completed Match | 50.5% | 50.5¢ | 49.5¢ |
| Set 2 Winner | 50.0% | 50.0¢ | 50.0¢ |
| Set 1 O/U 8.5 | 48.5% | 48.5¢ | 51.5¢ |
| Set 1 O/U 9.5 | 48.5% | 48.5¢ | 51.5¢ |
| Set Handicap +/-1.5 | 48.0% | 48.0¢ | 52.0¢ |
| Set 2 O/U 8.5 | 48.0% | 48.0¢ | 52.0¢ |
| Set 2 O/U 9.5 | 48.0% | 48.0¢ | 52.0¢ |
| Set 2 O/U 10.5 | 48.0% | 48.0¢ | 52.0¢ |
| Match O/U 23.5 | 46.0% | 46.0¢ | 54.0¢ |
| Game Spread +/-3.5 | 40.0% | 40.0¢ | 60.0¢ |
| Total Sets: O/U 2.5 | 36.5% | 36.5¢ | 63.5¢ |
| Set 1 Winner | 35.5% | 35.5¢ | 64.5¢ |
| Erste Bank Open: Tallon Griekspoor vs Brandon Nakashima | 33.5% | 33.5¢ | 66.5¢ |
Market details
- Venue: Polymarket
- Volume: $3K
- Liquidity: $39K
- Closes:
Resolution rules
Each outcome is a separate contract with its own rules. The rules for Match O/U 22.5:
This market refers to the tennis match between Tallon Griekspoor and Brandon Nakashima in the Erste Bank Open, originally scheduled for October 27, 2026 at 5:00AM ET. This market will resolve to "Over" if the total number of games completed equals or exceeds 23. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game. If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before completion, or if the match has not been completed by November 10, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the match played according to the match format published by the tournament organizer for that round, including whether a final set is played as a full set or as a match tiebreak. For example, for a line of 21.5, if play stops at 6-3, 5-6, completing the match would have required at least 2 additional games, resulting in at least 22 games played, so "Over" would resolve as the winning outcome. Likewise, if the published format replaces the final set with a match tiebreak, that tiebreak counts as one (1) game, so for a line of 22.5, if play stops at 6-2, 3-3, the match could have…
Sources
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