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% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Set 1 O/U 8.5 | 100% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Set 1 O/U 9.5 | 100% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Set Handicap +/-1.5 | 100% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Set 1 O/U 10.5 | 100% |
| Bastad: Kaitlin Quevedo vs Simona Waltert | 0% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Set 1 Winner | 0% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Total Sets: O/U 2.5 | 0% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Set 2 O/U 8.5 | 0% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Match O/U 21.5 | 0% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Set 2 Winner | 0% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Set Handicap +/-1.5 | 0% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Set 2 O/U 9.5 | 0% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Match O/U 22.5 | 0% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Set 2 O/U 10.5 | 0% |
| Bastad: Kaitlin Quevedo vs Simona Waltert Match O/U 23.5 | 0% |
Market context
The underlying real-world event is the WTA 125 Nordea Open quarter-final in Bastad, where Kaitlin Quevedo faces Simona Waltert on clay today, 10 July 2026. Quevedo, the Spanish seed #8, remains in the tournament, while Waltert, the Swiss seed #5, has already been eliminated from the main draw, creating a stark discrepancy in the crowd-implied 0% probability for Quevedo to advance[2][4].
Historically, markets assigning near-zero probability to a player advancing when their opponent is already eliminated have resolved as clear errors in data interpretation rather than genuine competitive deficits. Comparable cases in WTA tournaments show that when a seeded player is withdrawn or eliminated prior to a scheduled match, the remaining opponent advances by default, rendering the 0% odds a misreading of the tournament status rather than a reflection of on-court form[4].
Traders must monitor the official WTA tournament schedule and real-time scoreboards to confirm Waltert’s elimination status and Quevedo’s progression, as any delay in data updates could skew market resolution. Recent reports from the tournament order of play indicate Quevedo is still playing, while Waltert’s elimination was confirmed on the player list, suggesting the market should resolve to Quevedo advancing unless a cancellation occurs[2][4]. Verification of the match result via live score feeds like ESPN or Flashscore will be the primary catalyst for settlement[3][7].
Methodology
Sports-specific comparison page for Bastad: Kaitlin Quevedo vs Simona Waltert. 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.
- 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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