Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Legal UK Pick polygram.ink |
90% | 10% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Legal UK → |
Polymarket polymarket.com |
90% | 10% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Legal UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Legal UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Legal UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Legal UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Polymarket Legal UK.
Active sub-markets
| Halle Open: Learner Tien vs Felix Auger-Aliassime Match O/U 21.5 | 90% Over | 10% Under |
| Halle Open: Learner Tien vs Felix Auger-Aliassime Match O/U 22.5 | 87% Over | 13% Under |
| Halle Open: Learner Tien vs Felix Auger-Aliassime Match O/U 23.5 | 98% Over | 2% Under |
| Halle Open: Learner Tien vs Felix Auger-Aliassime Set 2 Winner | 0% Tien | 100% Auger-Aliassime |
| Halle Open: Learner Tien vs Felix Auger-Aliassime | 50% Learner Tien | 51% Felix Auger-Aliassime |
| Completed Match | 50% YES | 50% NO |
Market context
Traders on decentralised prediction markets give 90% probability to halle open: learner tien vs felix auger-aliassime. This market refers to the tennis match between Learner Tien and Felix Auger-Aliassime in the Halle Open, originally scheduled for June 17, 2026 at 5:30AM ET. This market will resolve to 'Learner Tien…
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Legal UK, 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
- Where can I trade this market with the lowest fees?
- On Polymarket Legal UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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 it cost to trade on Polymarket Legal UK?
- Zero. Polymarket Legal UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Legal UK triggers a quick verification flow that finishes in minutes.
- 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 Halle Open: Learner Tien vs Felix Auger-Aliassime on Polymarket Legal UK
Live order book, 0% fees, USDC settlement in seconds.
Trade on Polymarket Legal UK →