As of October 24, 2026, 09:28 PM ET, Polymarket traders price European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over at 69.5% in European Open: Jan-Lennard Struff vs Tallon Griekspoor — $56 traded so far.
The leading outcome, European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over, is priced at 69.5%.
Since October 24, 2026, European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over has traded between 49.0% and 70.0%. It opened at 49.0% and last traded at 70.0%.
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over is favored at 69.5%.
| Outcome | Price | Implied probability | 24h change | Volume | Volume share |
|---|---|---|---|---|---|
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over | 70¢ | 69.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set Handicap +/-1.5: Jan-Lennard Struff | 68¢ | 68.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Total Sets: O/U 2.5: Under 2.5 | 60¢ | 59.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 10.5: Under | 55¢ | 54.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Match O/U 23.5: Over | 54¢ | 54.0% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor: Tallon Griekspoor | 52¢ | 52.5% | — | $56 | 100.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 O/U 8.5: Under | 52¢ | 52.0% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 O/U 9.5: Under | 52¢ | 52.0% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 O/U 10.5: Under | 52¢ | 52.0% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 8.5: Under | 52¢ | 51.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 Winner: Tallon Griekspoor | 51¢ | 51.0% | — | $0 | 0.0% |
| Completed Match | 50¢ | 50.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Match O/U 21.5: Under | 50¢ | 50.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Match O/U 22.5: Under | 50¢ | 50.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 Winner: Jan-Lennard Struff | 50¢ | 50.0% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 Winner: Tallon Griekspoor | 50¢ | 50.0% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Game Spread +/-0.5: Tallon Griekspoor | 50¢ | 50.0% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Game Spread +/-0.5: Jan-Lennard Struff | 50¢ | 50.0% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Match O/U 21.5: Over | 50¢ | 49.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Match O/U 22.5: Over | 50¢ | 49.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 Winner: Jan-Lennard Struff | 49¢ | 49.0% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 8.5: Over | 48¢ | 48.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 O/U 8.5: Over | 48¢ | 48.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 O/U 9.5: Over | 48¢ | 48.0% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 2 O/U 10.5: Over | 48¢ | 48.0% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor: Jan-Lennard Struff | 48¢ | 47.5% | — | $56 | 100.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Match O/U 23.5: Under | 46¢ | 46.0% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 10.5: Over | 46¢ | 45.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Total Sets: O/U 2.5: Over 2.5 | 40¢ | 40.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set Handicap +/-1.5: Tallon Griekspoor | 32¢ | 31.5% | — | $0 | 0.0% |
| European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Under | 30¢ | 30.5% | — | $0 | 0.0% |
See the full live book for this market on Polymarket
The leading market's spread is 13¢ (bid 63¢ / ask 76¢) — a tighter spread means cheaper round-trip trading.
$56 has been traded on this event in total, $56 of it in the last 24 hours, across 16 markets.
This market is scheduled to end November 01, 2026, 10:30 AM ET.
This market refers to the tennis match between Jan-Lennard Struff and Tallon Griekspoor in the European Open, originally scheduled for October 25, 2026 at 11:30AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game. If the match is postponed or suspended, this market will remain open until the first set has been completed. A postponement alone will not trigger a 50-50 resolution. If the match is permanently abandoned before the first set is completed, or if the first set has not been completed by November 8, 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 set played according to the match format published by the tournament organizer for that round, including whether the set is decided by a tiebreak. For example, for a line of 9.5, if play stops with the first set at 5-4, completing the set would have required at least 1 additional game, resulting in at least 10 games played, so "Over" would resolve as the winning outcome. … (condensed)
Resolution source: https://www.atptour.com/en/scores/current
| Time | Outcome | Side | Price | Size |
|---|---|---|---|---|
| Oct 24, 09:13 PM ET | Tallon Griekspoor | BUY | 53.0% | $14 |
| Oct 24, 08:29 PM ET | Tallon Griekspoor | BUY | 53.0% | $2 |
| Oct 24, 07:51 PM ET | Jan-Lennard Struff | BUY | 48.0% | $1 |
| Oct 24, 07:18 PM ET | Tallon Griekspoor | BUY | 53.0% | $13 |
As of October 24, 2026, 09:25 PM ET, the leading outcome is European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over at 69.5%. Next is European Open: Jan-Lennard Struff vs Tallon Griekspoor Set Handicap +/-1.5: Jan-Lennard Struff at 68.5%. See the live book on Polymarket: https://polymarket.com/event/atp-struff-grieksp-2026-10-25?via=bro
$56 in total volume, with $56 traded in the last 24 hours across 16 markets.
The market is scheduled to end November 01, 2026, 10:30 AM ET. It resolves based on https://www.atptour.com/en/scores/current.
European Open: Jan-Lennard Struff vs Tallon Griekspoor Set 1 O/U 9.5: Over, priced at 69.5% as of October 24, 2026, 09:25 PM ET. Prices are implied probabilities backed by real-money trading.
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