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 |
|---|---|
| Newport: Katie Volynets vs Elizabeth Mandlik | 100% |
| Completed Match | 100% |
| Newport: Katie Volynets vs Elizabeth Mandlik Set 2 O/U 8.5 | 100% |
| Newport: Katie Volynets vs Elizabeth Mandlik Set 2 Winner | 100% |
| Newport: Katie Volynets vs Elizabeth Mandlik Total Sets: O/U 2.5 | 100% |
| Newport: Katie Volynets vs Elizabeth Mandlik Match O/U 21.5 | 100% |
| Newport: Katie Volynets vs Elizabeth Mandlik Set 1 O/U 8.5 | 100% |
| Newport: Katie Volynets vs Elizabeth Mandlik Set 2 O/U 9.5 | 100% |
| Newport: Katie Volynets vs Elizabeth Mandlik Match O/U 22.5 | 100% |
| Newport: Katie Volynets vs Elizabeth Mandlik Match O/U 23.5 | 100% |
| Newport: Katie Volynets vs Elizabeth Mandlik Set 1 Winner | 0% |
| Newport: Katie Volynets vs Elizabeth Mandlik Set Handicap +/-1.5 | 0% |
| Newport: Katie Volynets vs Elizabeth Mandlik Set Handicap +/-1.5 | 0% |
| Newport: Katie Volynets vs Elizabeth Mandlik Set 1 O/U 9.5 | 0% |
| Newport: Katie Volynets vs Elizabeth Mandlik Set 2 O/U 10.5 | 0% |
| Newport: Katie Volynets vs Elizabeth Mandlik Set 1 O/U 10.5 | 0% |
Market context
The quarterfinal clash at the Cerity Partners Hall of Fame Open pits Katie Volynets against Elizabeth Mandlik in Newport, with the match scheduled to begin at 11:00 AM ET on 10 July 2026. Volynets holds a clear ranking advantage at 101 compared to Mandlik’s 165, and her career-high singles ranking of 56 suggests a higher ceiling than Mandlik’s peak of 97 [2]. The 100% crowd-implied probability reflects Volynets’ dominance in their limited head-to-head history, where she won the only recorded encounter since 2021 while Mandlik has secured zero victories [10].
Historical precedents in WTA 125K quarterfinals show that players with a 60+ ranking gap and a prior head-to-head win rarely lose, often resolving markets with near-certainty when no external disruptions occur. Volynets’ consistency in advancing from this stage of tournaments mirrors past cases where top-ranked qualifiers eliminated lower-ranked opponents without the match being delayed or canceled, supporting the current pricing [2][4].
Traders should monitor official WTA communications for any weather-related delays or player injury announcements before the 11:00 AM ET start, as a cancellation or delay beyond seven days would reset the market to 50-50 [4]. The match’s resolution depends entirely on completion; if Volynets advances, the market settles YES, but any interruption without a winner triggers the tie condition [2]. No coaching changes or key absences have been reported for either player as of the latest tournament update [2].
Methodology
Sports-specific comparison page for Newport: Katie Volynets vs Elizabeth Mandlik. 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.
- 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.
Trade Newport: Katie Volynets vs Elizabeth Mandlik on March Madness Predictions
Live order book, 0% fees, USDC settlement in seconds.
Open live market →