Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
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.
| Outcome | Probability |
|---|---|
| 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% |
| National Bank Open: Marta Kostyuk vs Iga Swiatek Set Handicap +/-1.5 | 53% |
| National Bank Open: Marta Kostyuk vs Iga Swiatek Match O/U 21.5 | 53% |
| Completed Match | 50% |
| National Bank Open: Marta Kostyuk vs Iga Swiatek Set 2 O/U 8.5 | 50% |
| National Bank Open: Marta Kostyuk vs Iga Swiatek Set 1 O/U 9.5 | 50% |
| National Bank Open: Marta Kostyuk vs Iga Swiatek Set 2 O/U 9.5 | 50% |
| National Bank Open: Marta Kostyuk vs Iga Swiatek Set 1 O/U 10.5 | 50% |
| National Bank Open: Marta Kostyuk vs Iga Swiatek Set 2 O/U 10.5 | 50% |
| National Bank Open: Marta Kostyuk vs Iga Swiatek Match O/U 22.5 | 48% |
| National Bank Open: Marta Kostyuk vs Iga Swiatek Total Sets: O/U 2.5 | 41% |
| National Bank Open: Marta Kostyuk vs Iga Swiatek Match O/U 23.5 | 41% |
| National Bank Open: Marta Kostyuk vs Iga Swiatek Set Handicap +/-1.5 | 8% |
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]
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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