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 |
|---|---|
| Samsun: Kenta Miyoshi vs Vadym Ursu | 100% |
| Completed Match | 100% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Set 2 Winner | 100% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Set 1 Winner | 100% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Set 2 O/U 8.5 | 100% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Set Handicap +/-1.5 | 100% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Set 2 O/U 9.5 | 100% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Set 1 O/U 8.5 | 0% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Total Sets: O/U 2.5 | 0% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Match O/U 21.5 | 0% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Set Handicap +/-1.5 | 0% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Set 1 O/U 9.5 | 0% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Match O/U 22.5 | 0% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Set 1 O/U 10.5 | 0% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Set 2 O/U 10.5 | 0% |
| Samsun: Kenta Miyoshi vs Vadym Ursu Match O/U 23.5 | 0% |
Market context
Kenta Miyoshi and Vadym Ursu are due to meet in a Samsun Challenger quarter-final, with live listings showing Ursu ahead in the rankings and Miyoshi slightly lower in the ATP pecking order. The market’s 100% yes price implies traders expect the match to go ahead and resolve normally rather than drift into a cancellation or no-result scenario, which is notable because both players are on the board as active entrants rather than withdrawn names.[1][6][17]
For form, the cleanest frame is that neither player brings a head-to-head edge into this one: there is no recorded professional H2H, so historical match-up data cannot separate them.[7] Public preview pages also show both men arriving off recent wins in Samsun, with Miyoshi and Ursu each advancing through earlier rounds on the same event slate, which supports the idea of a live, competitive quarter-final rather than a one-sided mismatch.[2][10][12] That makes a fully priced favourite harder to justify on history alone, even if market sentiment has clustered heavily on the Japanese player.[15][16]
The main catalysts to watch are late-order schedule changes, injury or retirement news, and any draw adjustments if the session is pushed back or the court order shifts. The current live score pages already show the match on the Samsun quarter-final schedule, so any pre-match withdrawal would be the most direct route to a 50-50 settlement, while an in-match retirement would settle to the player who advances.[1][4][6][16] For traders, the key dependency is simple: whether the match actually starts and, once started, whether either player is forced to stop before completion.
Methodology
Sports-specific comparison page for Samsun: Kenta Miyoshi vs Vadym Ursu. 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.
- 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.
- 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.
- 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.
- 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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