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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | 100% | +42 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Set 2 Winner | 100% | +47 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Set 1 Winner | 0% | −54 pts | — | — · <1¢ | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Set Handicap +/-1.5 | 0% | −35 pts | — | — · <1¢ | — | ended |
| Completed Match | 100% | +50 pts | — | 99¢ · 100¢ (1¢) | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Match O/U 22.5 | 100% | +46 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Match O/U 23.5 | 100% | +53 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Total Sets: O/U 2.5 | 100% | +57 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Match O/U 21.5 | 100% | +36 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Set 1 O/U 10.5 | 0% | −39 pts | — | — · <1¢ | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Set Handicap +/-1.5 | 0% | −24 pts | — | — · <1¢ | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Set 1 O/U 8.5 | 100% | +32 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Set 2 O/U 8.5 | 100% | +49 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Set 2 O/U 9.5 | 100% | +49 pts | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Set 1 O/U 9.5 | 0% | −51 pts | — | — · <1¢ | — | ended |
| National Bank Open: Tallon Griekspoor vs Matteo Arnaldi Set 2 O/U 10.5 | 0% | −51 pts | — | — · <1¢ | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 70d | DAXLR | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor>99¢ | $2,377 | −$2 −0.1% | — |
| 70d | MilesY | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor>99¢ | $3,254 | −$3 −0.1% | — |
| 70d | 0xNuttawut | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor>99¢ | $3,268 | −$3 −0.1% | — |
| 70d | bordyugaqq | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor>99¢ | $2,379 | −$2 −0.1% | — |
| 70d | blinki2 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor90¢ → 100¢ | $3,316 | −$387 −12% | — |
| 70d | phredmoz | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor>99¢ | $3,422 | −$3 −0.1% | — |
| 70d | mm12310 | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor>99¢ | $1,162 | −$1 −0.1% | — |
| 70d | Novelty8 | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor>99¢ | $4,208 | +$4 +0.1% | 4 |
| 70d | blinki2 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor88¢ → 100¢ | $3,148 | +$421 +13% | 5 |
| 70d | swisstony7 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor96¢ → 100¢ | $43,493 | +$1,784 +4.1% | 4 |
| 70d | HomeRunHazard | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor96¢ → 100¢ | $9,292 | +$438 +4.7% | 4 |
| 70d | Kalahanda | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor91¢ → 100¢ | $2,490 | +$251 +10% | 5 |
| 70d | DAXLR | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor88¢ → 100¢ | $1,638 | +$228 +14% | 5 |
| 70d | tennis-loser | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor98¢ → 100¢ | $2,000 | +$43 +2.1% | 4 |
| 70d | pammbettingbeta | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor98¢ → 100¢ | $2,075 | +$42 +2.0% | 4 |
| 70d | Arcus-AI | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor91¢ → 100¢ | $1,820 | +$180 +9.9% | 5 |
| 70d | Rash-Copying2 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor76¢ → 100¢ | $15,203 | −$4,797 −32% | — |
| 70d | bordyugaqq | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor84¢ → 100¢ | $2,000 | +$381 +19% | 5 |
| 70d | spreadcorearb2 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor78¢ → 100¢ | $11,094 | +$3,186 +29% | 5 |
| 70d | GRINGOMATE4 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor76¢ → 100¢ | $15,305 | +$4,745 +31% | 6 |
| 70d | jtwyslljy5 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor66¢ → 100¢ | $9,925 | −$5,075 −51% | — |
| 70d | mpoly | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor84¢ → 100¢ | $1,200 | +$229 +19% | 5 |
| 70d | 0x87b5…0fce | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellMatteo Arnaldi20¢ → 0¢ | $1,207 | +$1,207 +100% | — |
| 70d | HomeRunHazard | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi20¢ → 0¢ | $1,827 | −$1,827 −100% | 6 |
| 70d | ferrariChampions2026 | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi33¢ → 0¢ | $6,286 | −$6,286 −100% | 6 |
| 70d |  PinkBear | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor59¢ → 100¢ | $3,265 | +$2,269 +69% | 6 |
| 70d | Reflecting-Packaging3 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi37¢ → 0¢ | $7,125 | −$7,125 −100% | 6 |
| 70d | eokho | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellMatteo Arnaldi40¢ → 0¢ | $2,951 | +$2,951 +100% | — |
| 70d | phredmoz | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor60¢ → 100¢ | $2,055 | +$1,370 +67% | 6 |
| 70d | Reliable-Giggle | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor59¢ → 100¢ | $2,535 | −$1,762 −69% | — |
| 70d | Blushing-Creative | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi44¢ → 0¢ | $1,980 | −$1,980 −100% | 6 |
| 70d |  itskkoma | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellMatteo Arnaldi46¢ → 0¢ | $3,512 | +$3,512 +100% | — |
| 70d | Rash-Copying | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor55¢ → 100¢ | $11,000 | +$9,000 +82% | 6 |
| 70d | dummyricher | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor53¢ → 100¢ | $1,062 | −$942 −89% | — |
| 70d | omnibus-076daa | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi62¢ → 0¢ | $1,404 | −$1,404 −100% | 6 |
| 70d | Reflecting-Packaging2 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellMatteo Arnaldi55¢ → 0¢ | $6,668 | +$6,668 +100% | — |
| 70d |  FTX2.0 | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellMatteo Arnaldi73¢ → 0¢ | $1,153 | +$1,153 +100% | — |
| 70d | FTX2.0 | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi76¢ → 0¢ | $1,200 | −$1,200 −100% | 6 |
| 70d | Rash-Copying | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellMatteo Arnaldi70¢ → 0¢ | $58,495 | +$58,495 +100% | — |
| 70d |  RN1 | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor27¢ → 100¢ | $1,323 | +$3,577 +270% | 6 |
| 70d | eokho | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi76¢ → 0¢ | $5,606 | −$5,606 −100% | 6 |
| 70d | Eztennis | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi73¢ → 0¢ | $2,878 | −$2,878 −100% | 6 |
| 70d | jtwyslljy2 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor36¢ → 100¢ | $7,200 | +$12,800 +178% | 6 |
| 70d |  laIaIalala | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi57¢ → 0¢ | $1,010 | −$1,010 −100% | 6 |
| 70d | 0xNuttawut | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor44¢ → 100¢ | $1,320 | +$1,680 +127% | 6 |
| 70d | AV23IUa2 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor51¢ → 100¢ | $44,297 | +$41,943 +95% | 4 |
| 70d | itskkoma | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi74¢ → 0¢ | $5,577 | −$5,577 −100% | 6 |
| 70d | 0xf3a1…bf4b2 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor52¢ → 100¢ | $9,446 | +$8,770 +93% | 6 |
| 70d | phredmoz | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi71¢ → 0¢ | $1,600 | −$1,600 −100% | 6 |
| 70d | 0x6fae…8f07 | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor32¢ → 100¢ | $1,192 | +$2,483 +208% | 6 |
| 70d | eokho | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor32¢ → 100¢ | $2,431 | −$5,166 −213% | — |
| 70d | Reliable-Giggle | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor41¢ → 100¢ | $1,755 | +$2,542 +145% | 6 |
| 70d | Reliable-Giggle | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellMatteo Arnaldi59¢ → 0¢ | $2,807 | +$2,807 +100% | — |
| 71d | MrClaude11 | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor40¢ → 100¢ | $1,400 | +$2,100 +150% | 6 |
| 71d | Gourmet12 fills | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi58¢ → 0¢ | $24,169 | −$24,169 −100% | 6 |
| 71d | 0x87b5…0fce | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi58¢ → 0¢ | $3,500 | −$3,500 −100% | 6 |
| 71d | 0x87b5…0fce | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | SellTallon Griekspoor43¢ → 100¢ | $2,280 | −$3,023 −133% | — |
| 71d | xabidaking | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyMatteo Arnaldi36¢ → 0¢ | $1,401 | −$1,401 −100% | 6 |
| 71d | 0x87b5…0fce | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor66¢ → 100¢ | $3,500 | +$1,803 +52% | 6 |
| 71d | eokho | National Bank Open: Tallon Griekspoor vs Matteo Arnaldi | BuyTallon Griekspoor70¢ → 100¢ | $5,286 | +$2,311 +44% | 6 |
This market refers to the tennis match between Tallon Griekspoor and Matteo Arnaldi in the National Bank Open, originally scheduled for August 7, 2026 at 10:00AM ET. This market will resolve to 'Tallon Griekspoor' if Tallon Griekspoor advances against Matteo Arnaldi. This market will resolve to 'Matteo Arnaldi' if Matteo Arnaldi advances against Tallon Griekspoor. 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 ATP 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 National Bank Open: Tallon Griekspoor vs Matteo Arnaldi means the market gives it about 100%.