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 |
|---|---|
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga | 100% |
| Completed Match | 100% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Set 2 O/U 8.5 | 100% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Total Sets: O/U 2.5 | 100% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Set 2 Winner | 100% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Match O/U 21.5 | 100% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Set 1 O/U 8.5 | 100% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Set 2 O/U 9.5 | 100% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Match O/U 22.5 | 100% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Set 2 O/U 10.5 | 100% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Set 1 O/U 9.5 | 100% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Match O/U 23.5 | 100% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Set 1 Winner | 0% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Set Handicap +/-1.5 | 0% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Set Handicap +/-1.5 | 0% |
| National Bank Open: Alexei Popyrin vs Roman Andres Burruchaga Set 1 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to national bank open: alexei popyrin vs roman andres burruchaga. This market refers to the tennis match between Alexei Popyrin and Roman Andres Burruchaga in the National Bank Open, originally scheduled for August 3, 2026 at 10:00AM ET. This market will resolve to…
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets, which mirrors the Polymarket order book directly.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
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.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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.
Trade National Bank Open: Alexei Popyrin vs Roman Andres B… on Best Prediction Markets
Live order book, 0% fees, USDC settlement in seconds.
Open live market →