As of October 24, 2026, 09:15 PM ET, Polymarket traders price Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 1 O/U 10.5: Under at 76.0% in Lisbon: Alexander Ritschard vs Svyatoslav Gulin — $624 traded so far.
Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 1 O/U 10.5: Under is favored at 76.0%.
| Outcome | Price | Implied probability | 24h change | Volume | Volume share |
|---|---|---|---|---|---|
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 1 O/U 10.5: Under | 76¢ | 76.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin: Alexander Ritschard | 76¢ | 75.5% | — | $624 | 100.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 1 Winner: Alexander Ritschard | 70¢ | 69.5% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Total Sets: O/U 2.5: Under 2.5 | 66¢ | 66.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 1 O/U 8.5: Under | 63¢ | 63.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Match O/U 22.5: Under | 57¢ | 57.5% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Game Spread +/-4.5: Svyatoslav Gulin | 55¢ | 54.5% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Match O/U 23.5: Under | 54¢ | 53.5% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set Handicap +/-1.5: Alexander Ritschard | 52¢ | 52.5% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 2 O/U 8.5: Under | 52¢ | 52.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 2 O/U 9.5: Under | 52¢ | 52.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 2 O/U 10.5: Under | 52¢ | 52.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Match O/U 21.5: Under | 52¢ | 52.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 1 O/U 9.5: Under | 52¢ | 51.5% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 2 Winner: Alexander Ritschard | 50¢ | 50.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 2 Winner: Svyatoslav Gulin | 50¢ | 50.0% | — | $0 | 0.0% |
| Completed Match | 49¢ | 49.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 1 O/U 9.5: Over | 48¢ | 48.5% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 2 O/U 8.5: Over | 48¢ | 48.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 2 O/U 9.5: Over | 48¢ | 48.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 2 O/U 10.5: Over | 48¢ | 48.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Match O/U 21.5: Over | 48¢ | 48.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set Handicap +/-1.5: Svyatoslav Gulin | 48¢ | 47.5% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Match O/U 23.5: Over | 46¢ | 46.5% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Game Spread +/-4.5: Alexander Ritschard | 46¢ | 45.5% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Match O/U 22.5: Over | 42¢ | 42.5% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 1 O/U 8.5: Over | 37¢ | 37.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Total Sets: O/U 2.5: Over 2.5 | 34¢ | 34.0% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 1 Winner: Svyatoslav Gulin | 30¢ | 30.5% | — | $0 | 0.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin: Svyatoslav Gulin | 24¢ | 24.5% | — | $624 | 100.0% |
| Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 1 O/U 10.5: Over | 24¢ | 24.0% | — | $0 | 0.0% |
See the full live book for this market on Polymarket
The leading market's spread is 4¢ (bid 22¢ / ask 26¢) — a tighter spread means cheaper round-trip trading.
$624 has been traded on this event in total, $624 of it in the last 24 hours, across 16 markets.
This market is scheduled to end November 01, 2026, 06:00 AM ET.
This market refers to the tennis match between Alexander Ritschard and Svyatoslav Gulin in the Lisbon, originally scheduled for October 25, 2026 at 7:00AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 11. 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, 09:07 PM ET | Alexander Ritschard | BUY | 76.0% | $4 |
| Oct 24, 08:51 PM ET | No | BUY | 6.0% | $6 |
| Oct 24, 08:20 PM ET | Alexander Ritschard | BUY | 75.9% | $345 |
| Oct 24, 01:51 PM ET | Alexander Ritschard | BUY | 75.0% | $74 |
| Oct 24, 01:39 PM ET | Alexander Ritschard | BUY | 75.0% | $7 |
| Oct 24, 01:39 PM ET | Alexander Ritschard | BUY | 75.0% | $13 |
| Oct 24, 01:15 PM ET | Alexander Ritschard | BUY | 76.0% | $34 |
As of October 24, 2026, 09:03 PM ET, the leading outcome is Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 1 O/U 10.5: Under at 76.0%. Next is Lisbon: Alexander Ritschard vs Svyatoslav Gulin: Alexander Ritschard at 75.5%. See the live book on Polymarket: https://polymarket.com/event/atp-ritscha-gulin-2026-10-25?via=bro
$624 in total volume, with $624 traded in the last 24 hours across 16 markets.
The market is scheduled to end November 01, 2026, 06:00 AM ET. It resolves based on https://www.atptour.com/en/scores/current.
Lisbon: Alexander Ritschard vs Svyatoslav Gulin Set 1 O/U 10.5: Under, priced at 76.0% as of October 24, 2026, 09:03 PM ET. Prices are implied probabilities backed by real-money trading.
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