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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| US Open WTA: Maria Sakkari vs Robin Montgomery | 100% | +42 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Set Handicap +/-1.5 | 0% | −37 pts | — | — · <1¢ | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Set Handicap +/-1.5 | 0% | −24 pts | — | — · 4¢ | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Set 2 Winner | 100% | +44 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Match O/U 21.5 | 100% | +39 pts | — | 83¢ · 100¢ (17¢) | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Match O/U 22.5 | 100% | +53 pts | — | 97¢ · 100¢ (3¢) | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Set 1 Winner | 0% | −56 pts | — | — · <1¢ | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Total Sets: O/U 2.5 | 100% | +52 pts | — | 80¢ · 100¢ (20¢) | — | ended |
| Completed Match | 100% | +50 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Set 2 O/U 8.5 | 100% | +50 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Set 1 O/U 8.5 | 0% | −71 pts | — | — · <1¢ | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Set 2 O/U 9.5 | 100% | +50 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Set 1 O/U 9.5 | 0% | −49 pts | — | — · <1¢ | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Set 2 O/U 10.5 | 100% | +50 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Set 1 O/U 10.5 | 0% | −36 pts | — | — · <1¢ | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Match O/U 23.5 | 100% | +47 pts | — | 81¢ · 100¢ (19¢) | — | ended |
| US Open WTA: Maria Sakkari vs Robin Montgomery Game Spread +/-0.5 | 100% | +70 pts | — | 99¢ · 100¢ (1¢) | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 52d | phatgentleman | US Open WTA: Maria Sakkari vs Robin Montgomery | SellMaria Sakkari>99¢ | $1,106 | −$1 −0.1% | — |
| 52d | Concrete-Vampire | US Open WTA: Maria Sakkari vs Robin Montgomery | SellMaria Sakkari>99¢ | $2,359 | −$2 −0.1% | — |
| 52d | Complicated-Questioner | US Open WTA: Maria Sakkari vs Robin Montgomery | SellMaria Sakkari>99¢ | $1,606 | −$2 −0.1% | — |
| 52d | unbeatable1 | US Open WTA: Maria Sakkari vs Robin Montgomery | SellMaria Sakkari>99¢ | $15,807 | −$16 −0.1% | — |
| 52d | greyner | US Open WTA: Maria Sakkari vs Robin Montgomery | SellMaria Sakkari>99¢ | $1,065 | −$1 −0.1% | — |
| 52d |  alpheclabs | US Open WTA: Maria Sakkari vs Robin Montgomery | SellMaria Sakkari>99¢ | $4,474 | −$4 −0.1% | — |
| 52d | AnonymousPerson | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari>99¢ | $2,053 | +$2 +0.1% | 4 |
| 52d |  mooseborzoi | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari97¢ → 100¢ | $1,699 | +$45 +2.7% | 4 |
| 52d | Concrete-Vampire | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari97¢ → 100¢ | $2,300 | +$61 +2.7% | 4 |
| 52d | Flaznorp | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari97¢ → 100¢ | $1,973 | +$63 +3.2% | 4 |
| 52d | omnibus-00c8ef | US Open WTA: Maria Sakkari vs Robin Montgomery | SellMaria Sakkari89¢ → 100¢ | $1,094 | −$138 −13% | — |
| 52d | hurrican | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari95¢ → 100¢ | $10,000 | +$487 +4.9% | 4 |
| 52d | greyner | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari95¢ → 100¢ | $1,015 | +$50 +4.9% | 4 |
| 52d |  TRCM | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari92¢ → 100¢ | $1,998 | +$174 +8.7% | 5 |
| 52d |  tradecraft | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari69¢ → 100¢ | $1,804 | +$811 +45% | 6 |
| 52d | Rash-Copying2 fills | US Open WTA: Maria Sakkari vs Robin Montgomery | SellMaria Sakkari53¢ → 100¢ | $41,230 | −$36,975 −90% | — |
| 52d | unbeatable1 | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari58¢ → 100¢ | $9,194 | +$6,630 +72% | 6 |
| 52d | unbeatable12 fills | US Open WTA: Maria Sakkari vs Robin Montgomery | SellRobin Montgomery45¢ → 0¢ | $9,114 | +$9,114 +100% | — |
| 52d | mermlok | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery55¢ → 0¢ | $1,288 | −$1,288 −100% | 6 |
| 52d | omnibus-076daa2 fills | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery63¢ → 0¢ | $6,751 | −$6,751 −100% | 6 |
| 52d | eokho | US Open WTA: Maria Sakkari vs Robin Montgomery | SellRobin Montgomery51¢ → 0¢ | $3,291 | +$3,291 +100% | — |
| 52d | ssj3 | US Open WTA: Maria Sakkari vs Robin Montgomery | SellRobin Montgomery63¢ → 0¢ | $2,048 | +$2,048 +100% | — |
| 52d | aplstrade | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari25¢ → 100¢ | $1,871 | +$5,705 +305% | 6 |
| 52d | spreadcorearb | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery73¢ → 0¢ | $5,217 | −$5,217 −100% | 6 |
| 52d | HomeRunHazard2 fills | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery58¢ → 0¢ | $7,647 | −$7,647 −100% | 6 |
| 52d | TRCM2 fills | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery73¢ → 0¢ | $10,610 | −$10,610 −100% | 6 |
| 52d | Confused-Birthday | US Open WTA: Maria Sakkari vs Robin Montgomery | SellRobin Montgomery78¢ → 0¢ | $1,484 | +$1,484 +100% | — |
| 52d | mooseborzoi3 fills | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery94¢ → 0¢ | $6,213 | −$6,213 −100% | 4 |
| 52d | angelat0 | US Open WTA: Maria Sakkari vs Robin Montgomery | SellMaria Sakkari14¢ → 100¢ | $1,451 | −$8,781 −605% | — |
| 52d | flatbarrel | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery74¢ → 0¢ | $6,651 | −$6,651 −100% | 6 |
| 52d | tradecraft | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery75¢ → 0¢ | $6,733 | −$6,733 −100% | 6 |
| 52d | eokho | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery71¢ → 0¢ | $4,621 | −$4,621 −100% | 6 |
| 52d | Confused-Birthday | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery71¢ → 0¢ | $1,344 | −$1,344 −100% | 6 |
| 52d | unbeatable1 | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery70¢ → 0¢ | $13,995 | −$13,995 −100% | 6 |
| 52d | ssj3 | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery68¢ → 0¢ | $2,200 | −$2,200 −100% | 6 |
| 52d | paquitomillonario | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery68¢ → 0¢ | $1,170 | −$1,170 −100% | 6 |
| 52d | Rash-Copying3 fills | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari56¢ → 100¢ | $44,500 | +$35,141 +79% | 6 |
| 52d | neutralwave23 | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari52¢ → 100¢ | $1,121 | +$1,042 +93% | 6 |
| 52d | HomeRunHazard2 fills | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari58¢ → 100¢ | $5,872 | +$4,318 +74% | 6 |
| 52d | ferrariChampions2026 | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery40¢ → 0¢ | $2,038 | −$2,038 −100% | 6 |
| 52d | Favorable-Pepper-Brushing | US Open WTA: Maria Sakkari vs Robin Montgomery | SellMaria Sakkari58¢ → 100¢ | $1,644 | −$1,191 −72% | — |
| 52d | jiiivi655 | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari59¢ → 100¢ | $1,204 | +$836 +69% | 6 |
| 52d | Substantial-Service | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari59¢ → 100¢ | $1,377 | +$957 +69% | 6 |
| 52d | Lilybaeum3 fills | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery41¢ → 0¢ | $3,802 | −$3,802 −100% | 6 |
| 52d |  hobo69 | US Open WTA: Maria Sakkari vs Robin Montgomery Set Handicap +/-1.5 | BuySakkari79¢ → 100¢ | $1,181 | +$319 +27% | 5 |
| 52d | NiNo999 | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery40¢ → 0¢ | $5,000 | −$5,000 −100% | 6 |
| 52d | NiNo999 | US Open WTA: Maria Sakkari vs Robin Montgomery Set Handicap +/-1.5 | BuyMontgomery64¢ → 100¢ | $10,000 | +$5,641 +56% | 6 |
| 52d |  HarmonPredicts | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyRobin Montgomery40¢ → 0¢ | $1,000 | −$1,000 −100% | 6 |
| 52d | AV23IUa | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari60¢ → 100¢ | $15,256 | +$10,171 +67% | 6 |
| 53d | angelat0 | US Open WTA: Maria Sakkari vs Robin Montgomery | BuyMaria Sakkari59¢ → 100¢ | $6,449 | +$4,481 +69% | 6 |
Zelenskys-suit5,550 sharesThis market refers to the tennis match between Maria Sakkari and Robin Montgomery in the US Open WTA, originally scheduled for August 30, 2026 at 11:00AM ET. This market will resolve to 'Maria Sakkari' if Maria Sakkari advances against Robin Montgomery. This market will resolve to 'Robin Montgomery' if Robin Montgomery advances against Maria Sakkari. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 13, 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: 100¢ for US Open WTA: Maria Sakkari vs Robin Montgomery means the market gives it about 100%.