Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Review UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Set 2 O/U 8.5 | 100% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Set 1 O/U 8.5 | 100% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Set 1 Winner | 100% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Total Sets: O/U 2.5 | 100% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Match O/U 21.5 | 100% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Set 1 O/U 9.5 | 100% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Match O/U 22.5 | 100% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Match O/U 23.5 | 100% |
| Los Cabos Open: Aidan Mayo vs James Duckworth | 0% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Set 2 Winner | 0% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Set Handicap +/-1.5 | 0% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Set 2 O/U 9.5 | 0% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Set 1 O/U 10.5 | 0% |
| Los Cabos Open: Aidan Mayo vs James Duckworth Set 2 O/U 10.5 | 0% |
Market context
Market consensus: 100% chance of los cabos open: aidan mayo vs james duckworth. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Aidan Mayo and James Duckworth in the Los Cabos Open, originally scheduled for July 28, 2026 at 1:00PM 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
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.
- 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.
- 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.
- 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 Polymarket Review UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Los Cabos Open: Aidan Mayo vs James Duckworth on Polymarket Review UK
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