Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 1 Winner | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart | 100% |
| Completed Match | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Match O/U 21.5 | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Match O/U 22.5 | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Match O/U 23.5 | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 2 O/U 8.5 | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 1 O/U 8.5 | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Total Sets: O/U 2.5 | 100% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 2 O/U 9.5 | 0% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 2 O/U 10.5 | 0% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 1 O/U 9.5 | 0% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 1 O/U 10.5 | 0% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set 2 Winner | 0% |
| Wimbledon WTA: Jelena Ostapenko vs Harriet Dart Set Handicap +/-1.5 | 0% |
Market context
Jelena Ostapenko and Harriet Dart face off in the first round of the 2026 Wimbledon Ladies’ Singles, with the match scheduled to begin at 12:40 pm BST on 29 June. Ostapenko, the world number 35, is a proven grass-courter who thrives on fast surfaces, while Dart, ranked 151, has struggled recently, winning only one of her last six matches. Their previous encounter in Eastbourne two years ago ended in a 6-3, 6-4 victory for Ostapenko, reinforcing the Latvian’s dominance in this pairing.
Historically, such mismatches in early-round Wimbledon contests between a top-tier grass specialist and an out-of-form lower-ranked opponent have resolved decisively, with the higher-ranked player advancing in over 90% of comparable cases. The 100% crowd-implied probability for Ostapenko reflects this pattern, where form, surface suitability, and head-to-head history converge to eliminate doubt. Traders should monitor any pre-match injury updates, weather delays affecting the 12:40 pm start, or official confirmations from the WTA regarding Dart’s fitness, as these could shift the settlement outcome if the match is canceled or delayed beyond seven days. Recent coverage from The Stats Zone highlights Dart’s poor recent form and Ostapenko’s statistical strength on grass, further validating the market’s confidence [1].
Methodology
Sports-specific comparison page for Wimbledon WTA: Jelena Ostapenko vs Harriet Dart. 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 or Manifold.
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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