Lexus Eastbourne Open, Qualification: Marcos Giron vs Charles Broom

Platform comparison

Active sub-markets

Market context

Polymarket is effectively pricing **Marcos Giron** at 100% to advance against Charles Broom, with the contract already sitting at the ceiling in USDC terms on Polygon. For users, that means the market is not weighing up a balanced win probability; it is pricing the outcome as if Giron’s advancement is effectively certain, while still leaving the usual on-chain contract mechanics in place through conditional tokens and settlement rules.

That kind of print is best read against how prediction markets treat lopsided tennis fixtures when the favourite is already confirmed and there is no live uncertainty left in the schedule. Comparable markets on other platforms for this Eastbourne qualifying match were also listed as a straightforward Giron-Broom encounter, and the ATP/ESPN listings show the match on the Eastbourne qualifying slate rather than as a weather-disrupted or speculative placeholder.[4][5] In practice, a 100% price usually reflects either a result already visible to traders or a market that has become pinned because the expected winner is no longer in doubt; it is less about model conviction than about the contract nearing mechanical certainty.

The main things to watch are any ATP schedule updates, walkover or retirement notices, and whether the match was actually played within the market’s seven-day settlement window. Similar tennis markets on Robinhood and Kalshi make clear that if a match is not played, is postponed, or ends through pre-start withdrawal, the resolution can shift away from a normal win/loss outcome and towards a fair-price or neutral settlement depending on the rules.[2][3] On Polymarket, that matters because a supposedly locked 100% position can still be vulnerable if the underlying fixture is altered, delayed, or voided before a winner is officially determined.

Sources: 1 · 2 · 3 · 4 · 5

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 UK, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket 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.

Is this market available outside the US?

Polymarket UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

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.