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 |
|---|---|
| Completed Match | 100% |
| Roehampton: Emile Hudd vs Alastair Gray Set 1 O/U 8.5 | 100% |
| Roehampton: Emile Hudd vs Alastair Gray Total Sets: O/U 2.5 | 100% |
| Roehampton: Emile Hudd vs Alastair Gray Set 1 Winner | 100% |
| Roehampton: Emile Hudd vs Alastair Gray Set 2 O/U 8.5 | 100% |
| Roehampton: Emile Hudd vs Alastair Gray Match O/U 21.5 | 100% |
| Roehampton: Emile Hudd vs Alastair Gray Set 1 O/U 9.5 | 100% |
| Roehampton: Emile Hudd vs Alastair Gray Match O/U 22.5 | 100% |
| Roehampton: Emile Hudd vs Alastair Gray Match O/U 23.5 | 100% |
| Roehampton: Emile Hudd vs Alastair Gray | 0% |
| Roehampton: Emile Hudd vs Alastair Gray Set Handicap +/-1.5 | 0% |
| Roehampton: Emile Hudd vs Alastair Gray Set 2 Winner | 0% |
| Roehampton: Emile Hudd vs Alastair Gray Set Handicap +/-1.5 | 0% |
| Roehampton: Emile Hudd vs Alastair Gray Set 2 O/U 9.5 | 0% |
| Roehampton: Emile Hudd vs Alastair Gray Set 1 O/U 10.5 | 0% |
| Roehampton: Emile Hudd vs Alastair Gray Set 2 O/U 10.5 | 0% |
Market context
Emile Hudd and Alastair Gray are scheduled to meet in the Roehampton tournament on 17 August 2026. The 0% implied probability suggests either significant uncertainty about the match's occurrence or a structural issue with market liquidity at the settlement window. Roehampton, held annually in south-west London, typically features British players competing on grass ahead of the summer hard-court season. Both players would be competing in a domestic event with limited ranking points on offer, which affects motivation and travel decisions for touring professionals.
Historical precedent for grass-court matches between lower-ranked British players shows high cancellation and withdrawal rates, particularly when players are managing injury or prioritising other tournaments. The seven-day delay clause in this market's resolution rules creates a meaningful buffer; matches rescheduled within that window still resolve to the advancing player rather than 50-50, reducing the likelihood of a tie outcome unless the event itself is postponed or abandoned. Comparable domestic tournaments in the UK have seen fixture changes announced as late as 48 hours before scheduled play, especially when weather or player availability shifts.
Traders should monitor the ATP and WTA injury reports through early August, as any withdrawal by either player would trigger resolution. Tournament draw announcements and seeding information, typically released one week before play, will clarify whether this match is confirmed as part of the main draw or qualifying rounds. Weather forecasts for London in mid-August and any announcements from the Roehampton organisers regarding scheduling adjustments should be tracked closely, as grass-court events are particularly vulnerable to rain delays that could push matches beyond the seven-day window.
Methodology
Sports-specific comparison page for Roehampton: Emile Hudd vs Alastair Gray. 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.
- 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.
- 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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