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 |
|---|---|
| Bunschoten: Guy Den Ouden vs Tom Gentzsch | 100% |
| Completed Match | 100% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Set 1 Winner | 100% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Set 2 O/U 8.5 | 100% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Set 1 O/U 8.5 | 100% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Total Sets: O/U 2.5 | 100% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Set 2 O/U 9.5 | 100% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Match O/U 21.5 | 100% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Set 1 O/U 9.5 | 100% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Match O/U 22.5 | 100% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Match O/U 23.5 | 100% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Set 2 Winner | 0% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Set Handicap +/-1.5 | 0% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Set 2 O/U 10.5 | 0% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Set Handicap +/-1.5 | 0% |
| Bunschoten: Guy Den Ouden vs Tom Gentzsch Set 1 O/U 10.5 | 0% |
Market context
The underlying event is a scheduled tennis match in Bunschoten between Guy Den Ouden and Tom Gentzsch, originally set for 19 July 2026, where the market currently prices Den Ouden’s advancement at 100% certainty. This near-total confidence is unusual for a competitive singles fixture and mirrors historical cases where one player withdrew pre-match or faced a severe injury, leaving the opponent to advance by default without contest. In such scenarios, prediction markets often lock in at 100% once withdrawal is confirmed, as seen in prior ITF and Challenger events where absentees triggered automatic resolutions.
Traders should monitor official tournament communications for any late cancellations, player withdrawals, or weather delays that could push the match beyond the seven-day settlement window, which would reset the outcome to a 50-50 split. The primary catalyst is the Bunschoten tournament’s official draw and player status updates, typically published via the tournament’s website or the Netherlands Tennis Association (NTB) portal. With today being 20 July 2026 and the match already past its original start time, the absence of a result suggests either a no-contest scenario or an unrecorded default, both of which would sustain the 100% YES pricing unless new information emerges.
Methodology
Sports-specific comparison page for Bunschoten: Guy Den Ouden vs Tom Gentzsch. 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.
- 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.
- 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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