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توقع: National Bank Open: Marta Kostyuk vs Iga Swiatek

How the prediction market is pricing "توقع: National Bank Open: Marta Kostyuk vs Iga Swiatek" right now — Polymarket mid plus comparison with Betfair and Manifold.

National Bank Open: Marta Kostyuk vs Iga Swiatek Set 1 Winner 91% National Bank Open: Marta Kostyuk vs Iga Swiatek Set 1 O/U 8.5 75% National Bank Open: Marta Kostyuk vs Iga Swiatek 72% National Bank Open: Marta Kostyuk vs Iga Swiatek Set 2 Winner 55% Volume: $402K Liquidity: $359K Closes: 16 Aug 2026
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توقع: National Bank Open: Marta Kostyuk vs Iga Swiatek

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via توقعات كورة) Pick
polygram.ink (preferred broker)
91% 9% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Open the market →
Polymarket (direct)
polymarket.com
91% 9% 0% Geo-blocked in US/UK/EU USDC, on-chain Open the market →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Open the market →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Open the market →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Open the market →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
National Bank Open: Marta Kostyuk vs Iga Swiatek Set 1 Winner91%
National Bank Open: Marta Kostyuk vs Iga Swiatek Set 1 O/U 8.575%
National Bank Open: Marta Kostyuk vs Iga Swiatek72%
National Bank Open: Marta Kostyuk vs Iga Swiatek Set 2 Winner55%
National Bank Open: Marta Kostyuk vs Iga Swiatek Set Handicap +/-1.553%
National Bank Open: Marta Kostyuk vs Iga Swiatek Match O/U 21.553%
Completed Match50%
National Bank Open: Marta Kostyuk vs Iga Swiatek Set 2 O/U 8.550%
National Bank Open: Marta Kostyuk vs Iga Swiatek Set 1 O/U 9.550%
National Bank Open: Marta Kostyuk vs Iga Swiatek Set 2 O/U 9.550%
National Bank Open: Marta Kostyuk vs Iga Swiatek Set 1 O/U 10.550%
National Bank Open: Marta Kostyuk vs Iga Swiatek Set 2 O/U 10.550%
National Bank Open: Marta Kostyuk vs Iga Swiatek Match O/U 22.548%
National Bank Open: Marta Kostyuk vs Iga Swiatek Total Sets: O/U 2.541%
National Bank Open: Marta Kostyuk vs Iga Swiatek Match O/U 23.541%
National Bank Open: Marta Kostyuk vs Iga Swiatek Set Handicap +/-1.58%

Market context

Marta Kostyuk and Iga Swiatek meet in the National Bank Open round of 16 on outdoor hard courts in Toronto, with the market pricing a modest edge to Swiatek but not a dominant one. That 44% crowd-implied “YES” price is close to a live contest read: Tennis.com has Swiatek at 57% projected winner, while other match previews still frame her as the short favourite rather than a heavy one.[2][10]

The historical setup supports that cautious line. Swiatek leads the head-to-head 3-1 and has won both previous hard-court meetings, but Kostyuk broke the pattern with a straight-sets win at Roland Garros in May, ending Swiatek’s run in the rivalry and reminding traders that the matchup is not one-way.[3][10][16] Both have also arrived in Toronto without dropping a set through their opening rounds, which keeps the pre-match signal mixed rather than decisive.[10][12]

For catalysts, the main watchpoint is the tournament schedule: the match has been listed for 8 August, with sources placing it around the centre-court day session, but actual order can shift if earlier matches run long.[4][5][11][12] Toronto’s official site already had Swiatek and Kostyuk into the same round and also noted their Day 6 progression, so any late injury update, retirement elsewhere in the draw, or weather delay could affect timing rather than the underlying matchup.[1][9][16] No suspension or fitness issue has been flagged in the available reporting.[1][9]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for توقع: National Bank Open: Marta Kostyuk vs Iga Swiatek. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Are prediction markets better than sports betting?
Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
Can I bet on individual matches?
Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
What are live sports odds on Polymarket?
Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.
Which sports markets are available?
Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
What's the difference between match odds and outright odds?
Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.
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Related Topics

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