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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| Porto: Valentina Steiner vs Katie Swan | 0% | −18 pts | — | — · <1¢ | — | ended |
| Completed Match | 100% | +50 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| Porto: Valentina Steiner vs Katie Swan Set Handicap +/-1.5 | 100% | +52 pts | — | 99¢ · 100¢ (1¢) | — | ended |
| Porto: Valentina Steiner vs Katie Swan Total Sets: O/U 2.5 | 0% | −27 pts | — | — · 1¢ | — | ended |
| Porto: Valentina Steiner vs Katie Swan Set 1 O/U 8.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| Porto: Valentina Steiner vs Katie Swan Set 1 Winner | 0% | −33 pts | — | — · <1¢ | — | ended |
| Porto: Valentina Steiner vs Katie Swan Set 2 Winner | 0% | −33 pts | — | — · 1¢ | — | ended |
| Porto: Valentina Steiner vs Katie Swan Set 1 O/U 9.5 | 0% | −67 pts | — | — · 1¢ | — | ended |
| Porto: Valentina Steiner vs Katie Swan Set 1 O/U 10.5 | 0% | +1 pts | — | — · 1¢ | — | ended |
| Porto: Valentina Steiner vs Katie Swan Set 2 O/U 8.5 | 0% | +1 pts | — | — · 1¢ | — | ended |
| Porto: Valentina Steiner vs Katie Swan Set 2 O/U 9.5 | 0% | +1 pts | — | — · 1¢ | — | ended |
| Porto: Valentina Steiner vs Katie Swan Set 2 O/U 10.5 | 0% | +1 pts | — | — · 1¢ | — | ended |
| Porto: Valentina Steiner vs Katie Swan Match O/U 21.5 | 0% | −49 pts | — | — · 1¢ | — | ended |
| Porto: Valentina Steiner vs Katie Swan Match O/U 22.5 | 0% | −49 pts | — | — · 1¢ | — | ended |
| Porto: Valentina Steiner vs Katie Swan Match O/U 23.5 | 0% | −49 pts | — | — · 1¢ | — | ended |
| Porto: Valentina Steiner vs Katie Swan Game Spread +/-4.5 | 100% | +49 pts | — | 99¢ · 100¢ (1¢) | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 30d | UpTheBlues | Porto: Valentina Steiner vs Katie Swan | BuyKatie Swan97¢ → 100¢ | $1,508 | +$47 +3.1% | 4 |
| 30d | HVAB | Porto: Valentina Steiner vs Katie Swan | BuyKatie Swan97¢ → 100¢ | $6,460 | +$200 +3.1% | 4 |
| 30d | Mad-Wound | Porto: Valentina Steiner vs Katie Swan | BuyKatie Swan90¢ → 100¢ | $2,500 | +$278 +11% | 5 |
| 30d | 0x86b5…16c4 | Completed Match | BuyYes98¢ → 100¢ | $5,027 | +$103 +2.0% | 4 |
no1dodgersfan238 sharesThis market refers to the tennis match between Valentina Steiner and Katie Swan in the Porto, originally scheduled for September 24, 2026 at 6:00AM ET. This market will resolve to 'Valentina Steiner' if Valentina Steiner advances against Katie Swan. This market will resolve to 'Katie Swan' if Katie Swan advances against Valentina Steiner. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 8, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.
Sources: Polymarket's Gamma API, its CLOB price history and its Data API, read every two minutes. Prices are each outcome's Yes price, which is the market's probability: 0¢ for Porto: Valentina Steiner vs Katie Swan means the market gives it about 0%.