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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| National Bank Open: Elise Mertens vs Naomi Osaka | 0% | −34 pts | — | — · <1¢ | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Set Handicap +/-1.5 | 100% | +50 pts | — | 99¢ · 100¢ (1¢) | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Set 1 Winner | 0% | −37 pts | — | — · <1¢ | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Set 2 Winner | 0% | −36 pts | — | — · <1¢ | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Match O/U 21.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Total Sets: O/U 2.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Set Handicap +/-1.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Set 1 O/U 8.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| Completed Match | 100% | +50 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Set 2 O/U 8.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Set 1 O/U 9.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Set 2 O/U 9.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Match O/U 22.5 | 0% | −48 pts | — | — · <1¢ | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Set 1 O/U 10.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Set 2 O/U 10.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| National Bank Open: Elise Mertens vs Naomi Osaka Match O/U 23.5 | 0% | −50 pts | — | — · <1¢ | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 77d | VisionOfLove | National Bank Open: Elise Mertens vs Naomi Osaka | SellNaomi Osaka>99¢ | $1,111 | −$1 −0.1% | — |
| 77d | 0xfa5e…185e | National Bank Open: Elise Mertens vs Naomi Osaka | SellNaomi Osaka>99¢ | $1,514 | −$2 −0.1% | — |
| 77d |  Kangta8585 | National Bank Open: Elise Mertens vs Naomi Osaka | SellNaomi Osaka>99¢ | $2,141 | −$2 −0.1% | — |
| 77d | DaBossHogg | National Bank Open: Elise Mertens vs Naomi Osaka Set Handicap +/-1.5 | SellOsaka>99¢ | $6,196 | −$23 −0.4% | — |
| 77d | Grand-Vista | National Bank Open: Elise Mertens vs Naomi Osaka | SellNaomi Osaka>99¢ | $1,499 | −$2 −0.1% | — |
| 77d |  hd777 | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka>99¢ | $7,733 | +$23 +0.3% | 4 |
| 77d | dmoralez | National Bank Open: Elise Mertens vs Naomi Osaka | SellNaomi Osaka99¢ → 100¢ | $5,403 | −$55 −1.0% | — |
| 77d |  JoeMaserati | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka99¢ → 100¢ | $1,141 | +$12 +1.0% | 4 |
| 77d | swisstony6 fills | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka95¢ → 100¢ | $16,163 | +$906 +5.6% | 4 |
| 77d | dmoralez6 fills | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka95¢ → 100¢ | $12,983 | +$684 +5.3% | 4 |
| 77d | HomeRunHazard | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka91¢ → 100¢ | $3,257 | +$322 +9.9% | 4 |
| 77d |  tradecraft2 fills | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka90¢ → 100¢ | $5,808 | +$645 +11% | 4 |
| 77d | Arcus-AI2 fills | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka89¢ → 100¢ | $2,500 | +$296 +12% | 4 |
| 77d | AGUGava | National Bank Open: Elise Mertens vs Naomi Osaka | SellNaomi Osaka82¢ → 100¢ | $8,198 | −$1,802 −22% | — |
| 77d | tennistrader20 | National Bank Open: Elise Mertens vs Naomi Osaka | BuyElise Mertens12¢ → 0¢ | $1,761 | −$1,761 −100% | 4 |
| 77d | SchruteBucks | National Bank Open: Elise Mertens vs Naomi Osaka | SellNaomi Osaka89¢ → 100¢ | $1,378 | −$170 −12% | — |
| 77d | 0xc219…ea2f | National Bank Open: Elise Mertens vs Naomi Osaka | SellNaomi Osaka92¢ → 100¢ | $1,515 | −$132 −8.7% | — |
| 77d | SchruteBucks | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka90¢ → 100¢ | $1,620 | +$180 +11% | 4 |
| 77d | Ru386 | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka90¢ → 100¢ | $2,000 | +$222 +11% | 4 |
| 77d | 0xfa5e…185e | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka84¢ → 100¢ | $1,273 | +$242 +19% | 4 |
| 77d | 0b1 | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka91¢ → 100¢ | $24,065 | +$2,385 +9.9% | 4 |
| 77d | Grand-Vista | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka86¢ → 100¢ | $1,291 | +$210 +16% | 4 |
| 77d |  JustADonk | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka70¢ → 100¢ | $4,176 | +$1,790 +43% | 4 |
| 77d | comon119 | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka70¢ → 100¢ | $5,250 | +$2,250 +43% | 4 |
| 77d | Djdjdjekekek | National Bank Open: Elise Mertens vs Naomi Osaka Set Handicap +/-1.5 | BuyMertens53¢ → 0¢ | $1,717 | −$1,717 −100% | 4 |
| 77d | NewTeamSosed5 | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka70¢ → 100¢ | $3,430 | +$1,470 +43% | 4 |
| 77d | DaBossHogg | National Bank Open: Elise Mertens vs Naomi Osaka Set Handicap +/-1.5 | BuyOsaka48¢ → 100¢ | $3,000 | +$3,219 +107% | 4 |
| 77d | NiNo999 | National Bank Open: Elise Mertens vs Naomi Osaka Set Handicap +/-1.5 | BuyMertens54¢ → 0¢ | $5,000 | −$5,000 −100% | 4 |
| 77d | Kangta8585 | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka70¢ → 100¢ | $1,500 | +$643 +43% | 4 |
| 77d | AGUGava | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka70¢ → 100¢ | $7,000 | +$3,000 +43% | 4 |
| 77d | angelat04 fills | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka70¢ → 100¢ | $27,772 | +$11,902 +43% | 4 |
| 78d | dv-pm | National Bank Open: Elise Mertens vs Naomi Osaka | BuyNaomi Osaka67¢ → 100¢ | $9,165 | +$4,514 +49% | 4 |
| 78d | riverskew | National Bank Open: Elise Mertens vs Naomi Osaka | BuyElise Mertens32¢ → 0¢ | $1,570 | −$1,570 −100% | 4 |
eskk9,646 sharesThis market refers to the tennis match between Elise Mertens and Naomi Osaka in the National Bank Open, originally scheduled for August 8, 2026 at 10:00AM ET. This market will resolve to 'Elise Mertens' if Elise Mertens advances against Naomi Osaka. This market will resolve to 'Naomi Osaka' if Naomi Osaka advances against Elise Mertens. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 National Bank Open: Elise Mertens vs Naomi Osaka means the market gives it about 0%.