Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Mundial 2026 Grupos) 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
The real-world event is the WTA Wimbledon match between Jeļena Ostapenko and Harriet Dart, scheduled for 6:00 AM ET on 29 June 2026, where the market currently prices a 100% chance that Ostapenko advances. Historical precedents for such extreme probabilities in grass-court tennis often stem from one player’s superior recent form on the surface combined with a clear head-to-head or ranking disparity. Ostapenko, ranked 31 with an ELO of 1,472, holds a 67% win rate at Wimbledon over her career and reached the quarter-finals in 2025, whereas Dart lacks comparable Grand Slam grass success. Ostapenko’s 2026 grass results in Eastbourne included wins over Francesca Jones and Panna Udvardy before a retirement against Tatjana Maria, underscoring her ability to dominate lower-ranked opponents despite a recent 59.4% win rate overall.
Traders should monitor Ostapenko’s fitness following her Eastbourne retirement, as any wrist or shoulder issue could shift the line, and watch for Dart’s pre-match warm-up intensity, which often signals readiness on grass. Ostapenko’s serve statistics—59% first-serve hits and 3.75 aces per match—make her a formidable grass opponent, but her 5.41% double-fault ratio remains a vulnerability against aggressive players. Recent news from the Linz Open in April 2026 shows Ostapenko overcoming a 5–1 deficit to beat Alexandra Eala, highlighting her resilience under pressure, though that was on clay. The key catalyst is whether Ostapenko’s grass form in Eastbourne translates to Wimbledon, as her 2026 average form (57.6% wins) suggests inconsistency that could be exploited if Dart finds her rhythm early. No official injury reports have been released, but the retirement in Eastbourne warrants caution.
Methodology
Football-specific comparison page for Pronóstico: 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 (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
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- 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.
- Can I import form data and lineups?
- This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.
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