National Bank Open: Marta Kostyuk vs Iga Swiatek
8 signals across 3 markets · $36,638 tracked · resolves Aug 16, 2026
Follow Polymarket prediction-market odds for the National Bank Open match between Marta Kostyuk and Iga Swiatek. The event tracks both possible winners, with PolySpotter reporting that 94% of winner-focused smart money is scaling into Swiatek.
Markets (3)
Top trades across all markets
- Sharp bettor leads three-wallet Kostyuk cluster
Three wallets bought Kostyuk for $8.4K, including a highly profitable bettor with a 91% win rate and substantial edge over implied odds.
$8,035Score: 7.7 - 91% winner scaling into Kostyuk
A highly profitable 91% win-rate bettor is adding $6,666 to an existing Marta Kostyuk position amid a major volume spike.
$6,666Wallet win rate: 91%Score: 6.2 - 95% winner scales into Kostyuk
A highly profitable 95% winner is adding $4,500 to an existing Marta Kostyuk position at 43¢ amid an 82x volume surge.
$4,503Wallet win rate: 95%Score: 5.9 - 94% winner backs Kostyuk
A highly proven bettor with a 94% win rate and $7.47M profit placed a concentrated $6,500 bet on Marta Kostyuk amid an 82x volume spike.
$6,500Wallet win rate: 94%Score: 5.9 - Elite sharp buys tennis Over
A highly proven bettor with a 92% win rate and substantial edge placed a fresh, market-moving bet in a very thin tennis market.
$2,347Wallet win rate: 92%Score: 5.7 - 94% winner scaling into Swiatek
A highly profitable serial bettor with a 94% win rate is adding $5,800 to an existing Iga Swiatek position in a relatively quiet market.
$5,800Wallet win rate: 94%Score: 5.4 - Sharp bettor adds to Swiatek
A highly profitable serial trader with a 79% win rate and substantial edge is adding to an existing Iga Swiatek position at 60%.
$1,358Wallet win rate: 79%Score: 4.7 - Market-moving serial bettor
A highly experienced bettor made a market-moving $1,430 purchase of Swiatek in a thin market, though the wallet's win rate is only roughly in line with its average winning entry price.
$1,430Wallet win rate: 63%Score: 1.0
Top wallets in this event
- 0x207346…385b$6,666 · 1 market · 1 alert · 91% wins
- 0xcd65c3…ee96$6,500 · 1 market · 1 alert · 94% wins
- 0x0cdff1…ec9e$5,800 · 1 market · 1 alert · 94% wins
- 0xe8c4d6…395d$4,503 · 1 market · 1 alert · 95% wins
- 0x6157d5…9fb4$2,347 · 1 market · 1 alert · 92% wins
- 0xfe787d…0319$1,430 · 1 market · 1 alert · 63% wins
- 0x48de48…95ba$1,358 · 1 market · 1 alert · 79% wins
FAQs
What are the prediction-market odds for Kostyuk vs Swiatek?
This event tracks the market-implied chances of Marta Kostyuk and Iga Swiatek advancing in their National Bank Open match. Check the live event page for the latest odds and price changes.
What is smart money doing on Kostyuk vs Swiatek?
PolySpotter’s latest alert says 94% of winner-focused smart money is scaling into Iga Swiatek, signaling notable activity on Swiatek’s side of the market.
Who is favored in the Kostyuk vs Swiatek prediction market?
The market’s current prices indicate which player traders favor. The latest smart money signal points toward Iga Swiatek, but prices can change as new bets enter the market.
When does the Kostyuk vs Swiatek market resolve?
The match was scheduled for August 9, 2026, at 10:00 AM ET. If it is delayed, the market can resolve by August 16, 2026, once a winner is determined; cancellation or an extended delay may trigger the stated fallback rules.