Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets) 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 |
|---|---|
| Completed Match | 100% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Total Sets: O/U 2.5 | 100% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Set 1 O/U 8.5 | 100% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Set 2 Winner | 100% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Set 2 O/U 8.5 | 100% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Match O/U 21.5 | 100% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Set 2 O/U 9.5 | 100% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Match O/U 22.5 | 100% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Match O/U 23.5 | 100% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik | 0% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Set 1 Winner | 0% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Set Handicap +/-1.5 | 0% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Set 1 O/U 9.5 | 0% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Set Handicap +/-1.5 | 0% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Set 1 O/U 10.5 | 0% |
| Newport: Reese Brantmeier vs Elizabeth Mandlik Set 2 O/U 10.5 | 0% |
Market context
Market consensus: 100% chance of newport: reese brantmeier vs elizabeth mandlik. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Reese Brantmeier and Elizabeth Mandlik in the Newport, originally scheduled for July 9, 2026 at 11:00AM ET. This market will resolve…
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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