National Bank Open: Tallon Griekspoor vs Matteo Arnaldi
12 signals across 1 market · $220,652 tracked · resolves Aug 14, 2026
Follow the Polymarket prediction market for the National Bank Open match between Tallon Griekspoor and Matteo Arnaldi. The event tracks which player advances, with $24,297 in smart money tracked and an alert for an elite bettor placing a 30x-volume tennis bet.
Markets (1)
Top trades across all markets
- 34-0 bettor adds to Arnaldi
A proven 34-0 sports bettor is adding $1,907 to Matteo Arnaldi at 36%, despite already holding a substantial position.
$4,866Wallet win rate: 97%Score: 7.9 - 96% winner backs Griekspoor
A highly profitable 96% win-rate bettor made a $58.5K equivalent bet on Tallon Griekspoor, alongside $25.6K of additional Tallon buying and a major volume spike.
$20,531Score: 7.8 - Three elite bettors fade Arnaldi
Three highly profitable bettors sold $64.5K of Arnaldi around 70–73%, with a 60.6x volume surge and the market subsequently falling to 56%.
$64,514Score: 7.5 - 97% winner adds to Griekspoor
A highly profitable serial bettor with a 97% win rate and substantial edge is adding to a Tallon Griekspoor position.
$7,584Wallet win rate: 97%Score: 7.4 - 96% winner backs Griekspoor
A highly profitable bettor with a 96% win rate made a nearly $58.5K contrarian sell of Arnaldi, equivalent to buying Griekspoor around 30%, amid a major volume spike.
$11,000Wallet win rate: 96%Score: 7.4 - Elite bettor makes 30x-volume tennis bet
A highly profitable, proven bettor with an 84% win rate and substantial positive edge made a concentrated $24,297 bet in a market with only $807 in daily volume.
$24,297Wallet win rate: 84%Score: 6.0 - 96% winner backs Griekspoor
A highly profitable bettor with a 96% win rate made a nearly $58.5K contrarian sell of Arnaldi, equivalent to buying Griekspoor around 30%, amid a major volume spike.
$58,495Wallet win rate: 96%Score: 6.0 - Elite bettor makes 30x-volume tennis bet
A highly profitable, proven bettor with an 84% win rate and substantial positive edge made a concentrated $24,297 bet in a market with only $807 in daily volume.
$20,000Wallet win rate: 84%Score: 5.9 - 34-0 bettor adds to Arnaldi
A proven 34-0 sports bettor is adding $1,907 to Matteo Arnaldi at 36%, despite already holding a substantial position.
$2,217Wallet win rate: 97%Score: 5.9 - 96% winner backs Griekspoor
A highly profitable bettor with a 96% win rate made a nearly $58.5K contrarian sell of Arnaldi, equivalent to buying Griekspoor around 30%, amid a major volume spike.
$4,241Wallet win rate: 96%Score: 5.7
Top wallets in this event
- 0x5f659b…2036$73,736 · 1 market · 3 alerts · 96% wins
- 0xdb859a…152f$44,297 · 1 market · 2 alerts · 84% wins
- 0xbc7227…c9d0$8,991 · 1 market · 3 alerts · 97% wins
- 0xf3a149…bf4b$7,584 · 1 market · 1 alert · 97% wins
- 0xddf449…2680$1,000 · 1 market · 1 alert · 95% wins
FAQs
What are the Griekspoor vs Arnaldi prediction-market odds?
Polymarket odds for Tallon Griekspoor vs Matteo Arnaldi reflect the market’s estimated probability of each player advancing. Check the live event page for current prices and changes.
What is the smart money doing on this tennis match?
PolySpotter has tracked $24,297 in smart money across the event and recorded one signal: an elite bettor made a 30x-volume tennis bet.
What outcomes are traded in this event?
The market covers the match winner: it resolves to Tallon Griekspoor or Matteo Arnaldi based on which player advances. A canceled match, tie, or prolonged delay may affect resolution under the market rules.
When does the Griekspoor vs Arnaldi market resolve?
The match is scheduled for August 7, 2026 at 10:00 AM ET, and the market is expected to resolve by August 14, 2026 at 2:00 PM UTC, subject to the published rules.