Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Legal UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Legal UK → |
Polymarket polymarket.com |
100% | 0% | 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
| Lexus Eastbourne Open, Qualification: Marcos Giron vs Charles Broom | 100% Marcos Giron | 0% Charles Broom |
| Completed Match | 100% YES | 0% NO |
| Lexus Eastbourne Open, Qualification: Marcos Giron vs Charles Broom Set 1 O/U 8.5 | 100% Over | 0% Under |
| Lexus Eastbourne Open, Qualification: Marcos Giron vs Charles Broom Set Handicap +/-1.5 | 0% Broom | 100% Giron |
| Lexus Eastbourne Open, Qualification: Marcos Giron vs Charles Broom Match O/U 21.5 | 100% Over | 0% Under |
| Lexus Eastbourne Open, Qualification: Marcos Giron vs Charles Broom Set 1 O/U 10.5 | 0% Over | 100% Under |
Market context
Marcos Giron and Charles Broom are the live tennis participants in Eastbourne qualification, with the market tied to whether Giron advances. A 100% crowd-implied price says the market is treating Giron as a near-certainty, but in tennis that sort of reading is usually more about event status than pure match edge, especially when the fixture sits inside a qualifying draw where withdrawals, scheduling changes, or a walkover can matter as much as ranking. The exchange-style settlement language also matters: under comparable tennis markets, if play never starts, outcomes can revert to a fair-price style resolution rather than a normal win/loss result, and if a completed result is not determined inside the window the event can fall back to 50-50. [1][2][3]
For accessibility, the regulatory context is relevant. A market offered with *no-KYC up to $1,500* is typically more usable for small retail exposure, but it does not remove jurisdictional friction: German GlüStV rules can restrict or affect access to gambling-like products from Germany, while US CFTC reach is the key reason some prediction-market activity remains sensitive for US users even when the event itself is a sports fixture. On the event side, the main catalysts are simple but binary: whether the match is actually played, whether either player withdraws, and whether the official schedule on the Eastbourne qualifying draw holds. ESPN’s live tournament listing shows the Giron–Broom qualifying match on the June 20 slate, alongside the wider Eastbourne men’s singles schedule, which is the practical signal traders watch for confirmation that the market can settle normally. [6][1][3]
Methodology
We track Lexus Eastbourne Open, Qualification: Marcos Giron vs Charles Broom on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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'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.
- 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?
- Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Legal UK triggers a quick verification flow that finishes in minutes.
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