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| Outcome | Chance | 24h | 1 week | Bid · Ask | 24h volume | Ends |
|---|---|---|---|---|---|---|
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | 0% | — | — | — · <1¢ | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Set 1 Winner | 0% | — | — | — · <1¢ | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Match O/U 22.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Set Handicap +/-1.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Set 2 Winner | 0% | — | — | — · <1¢ | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Match O/U 23.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Total Sets: O/U 2.5 | 0% | — | — | — · <1¢ | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Match O/U 21.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Set 1 O/U 8.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| Completed Match | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Set 2 O/U 8.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Set 2 O/U 9.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Set 1 O/U 9.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Set 2 O/U 10.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Set 1 O/U 10.5 | 100% | — | — | >99¢ · 100¢ (<1¢) | — | ended |
| When | Trader | Outcome | Bet | Size | P&L now | Insider |
|---|---|---|---|---|---|---|
| 80d | Fadepix | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | SellJoao Fonseca>99¢ | $1,477 | −$1 −0.1% | — |
| 80d | Impressive-Shoe | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Set Handicap +/-1.5 | SellFonseca>99¢ | $1,447 | −$1 −0.1% | — |
| 80d | DaBossHogg | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | SellJoao Fonseca>99¢ | $4,995 | −$5 −0.1% | — |
| 80d | 0xb94c…ae33 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | SellJoao Fonseca>99¢ | $2,280 | −$2 −0.1% | — |
| 80d | madkkee | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | SellJoao Fonseca>99¢ | $6,982 | −$7 −0.1% | — |
| 80d | Novelty8 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca>99¢ | $2,513 | +$4 +0.2% | 4 |
| 80d | swisstony6 fills | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca90¢ → 100¢ | $21,521 | +$2,422 +11% | 5 |
| 80d | tennis-loser | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca98¢ → 100¢ | $5,000 | +$121 +2.4% | 4 |
| 80d | sbimbg | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca97¢ → 100¢ | $9,375 | +$240 +2.6% | 4 |
| 80d | Kalahanda | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca97¢ → 100¢ | $2,000 | +$52 +2.6% | 4 |
| 80d | Fnfjfiwoc2 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | SellJoao Fonseca97¢ → 100¢ | $3,845 | −$128 −3.3% | — |
| 80d | maksimmaslov | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca98¢ → 100¢ | $2,015 | +$43 +2.1% | 4 |
| 80d |  Casperrino | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | SellJoao Fonseca98¢ → 100¢ | $2,433 | −$60 −2.5% | — |
| 80d | PAROLIBOYS4 fills | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyStefanos Tsitsipas19¢ → 0¢ | $9,917 | −$9,917 −100% | 4 |
| 80d | Krown | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | SellJoao Fonseca94¢ → 100¢ | $1,449 | −$92 −6.4% | — |
| 80d | Faithful-Jazz2 fills | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyStefanos Tsitsipas35¢ → 0¢ | $3,193 | −$3,193 −100% | 4 |
| 80d | comon119 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca56¢ → 100¢ | $2,800 | +$2,200 +79% | 6 |
| 80d | madkkee | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca62¢ → 100¢ | $4,333 | +$2,656 +61% | 6 |
| 80d | Fnfjfiwoc2 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca62¢ → 100¢ | $1,331 | +$817 +61% | 6 |
| 80d | 0x87b5…0fce | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca56¢ → 100¢ | $1,020 | +$802 +79% | 6 |
| 80d | HomeRunHazard | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyStefanos Tsitsipas44¢ → 0¢ | $2,010 | −$2,010 −100% | 6 |
| 80d | Tobias1909 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyStefanos Tsitsipas45¢ → 0¢ | $1,800 | −$1,800 −100% | 6 |
| 80d | Sick-Backyard | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyStefanos Tsitsipas45¢ → 0¢ | $2,500 | −$2,500 −100% | 6 |
| 80d |  tradecraft | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyStefanos Tsitsipas35¢ → 0¢ | $1,999 | −$1,999 −100% | 6 |
| 80d |  Marcoli | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca76¢ → 100¢ | $25,000 | +$7,895 +32% | 6 |
| 80d | 0F62 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca76¢ → 100¢ | $6,725 | +$2,129 +32% | 6 |
| 80d | bigwhale1337 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyStefanos Tsitsipas42¢ → 0¢ | $5,827 | −$5,827 −100% | 4 |
| 80d |  nigiri99 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyStefanos Tsitsipas41¢ → 0¢ | $1,112 | −$1,112 −100% | 4 |
| 80d | ferrariChampions2026 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca59¢ → 100¢ | $3,958 | +$2,751 +69% | 4 |
| 80d | Harmonious-Virus | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca59¢ → 100¢ | $6,100 | +$4,239 +69% | 4 |
| 80d | jbemsipbndo12959 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca59¢ → 100¢ | $4,215 | +$2,929 +69% | 4 |
| 80d | Casperrino | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca59¢ → 100¢ | $1,465 | +$1,018 +69% | 4 |
| 80d | BaccaratRoulette | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyStefanos Tsitsipas41¢ → 0¢ | $1,477 | −$1,477 −100% | 4 |
| 80d | DaBossHogg | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca60¢ → 100¢ | $3,000 | +$2,000 +67% | 4 |
| 80d | DaBossHogg | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca Match O/U 22.5 | BuyOver57¢ → 100¢ | $2,000 | +$1,509 +75% | 4 |
| 80d | Hunter33 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca59¢ → 100¢ | $1,500 | +$1,042 +69% | 4 |
| 80d | Follow555 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca58¢ → 100¢ | $1,309 | +$948 +72% | 4 |
| 80d | dv-pm | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca58¢ → 100¢ | $9,478 | +$6,863 +72% | 4 |
| 80d | Bagwell306 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyStefanos Tsitsipas42¢ → 0¢ | $1,050 | −$1,050 −100% | 4 |
| 80d | comon119 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyStefanos Tsitsipas42¢ → 0¢ | $2,100 | −$2,100 −100% | 4 |
| 80d | JAMJAMJAM4 | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca58¢ → 100¢ | $1,278 | +$925 +72% | 4 |
| 80d | AV23IUa | National Bank Open: Stefanos Tsitsipas vs Joao Fonseca | BuyJoao Fonseca57¢ → 100¢ | $5,078 | +$3,831 +75% | 4 |
This market refers to the tennis match between Stefanos Tsitsipas and Joao Fonseca in the National Bank Open, originally scheduled for August 5, 2026 at 11:00AM ET. This market will resolve to 'Stefanos Tsitsipas' if Stefanos Tsitsipas advances against Joao Fonseca. This market will resolve to 'Joao Fonseca' if Joao Fonseca advances against Stefanos Tsitsipas. 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: 0¢ for National Bank Open: Stefanos Tsitsipas vs Joao Fonseca means the market gives it about 0%.