Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Total Sets: O/U 2.5 | 100% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Set 2 Winner | 100% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Set 1 O/U 8.5 | 100% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Set 1 O/U 9.5 | 100% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez | 99% |
| Completed Match | 50% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Set 1 Winner | 0% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Set 2 O/U 8.5 | 0% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Set Handicap +/-1.5 | 0% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Match O/U 21.5 | 0% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Set 2 O/U 9.5 | 0% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Set Handicap +/-1.5 | 0% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Match O/U 22.5 | 0% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Set 1 O/U 10.5 | 0% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Set 2 O/U 10.5 | 0% |
| Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez Match O/U 23.5 | 0% |
Market context
Recek and Siniakov face Kielan and Hernandez in a Prague 2 doubles encounter scheduled for mid-August 2026. The 99% crowd probability reflects a substantial gap in recent form between the pairings, though the specificity of this assessment warrants scrutiny given the volatility typical of lower-tier ATP doubles draws where ranking points and seeding carry less predictive weight than head-to-head chemistry and surface preference.
Doubles partnerships at secondary tour events often hinge on recent tournament success and court familiarity rather than career rankings. Recek and Siniakov's implied dominance suggests either a significant disparity in clay-court experience—Prague typically plays medium-fast—or recent results favouring their combination in comparable events. Historical precedent from similar Prague 2 draws shows that pairings with 95%+ implied probability occasionally underperform when one player carries a minor injury or when the lower-seeded team benefits from tactical cohesion developed through recent qualifying rounds. The settlement window extends to 25 August, allowing a seven-day buffer beyond the scheduled 18 August date.
Traders should monitor official ATP communications regarding player availability through mid-August, particularly any late withdrawals or injury disclosures that typically emerge 48–72 hours before matches. Surface conditions and weather forecasts for Prague during that week may also shift dynamics if clay plays unusually fast or slow. Recent ATP Challenger results for both pairings in July would provide concrete form indicators; check ATP Tour official records for July tournament outcomes involving these players to assess whether the 99% probability reflects genuine form separation or market overconfidence.
Methodology
Sports-specific comparison page for Prague 2 (Doubles): Recek/Siniakov vs Kielan/Hernandez. 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
- 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.
- 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.
- How fast do sports winnings settle?
- Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.
- 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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