Lexus Eastbourne Open: Gabriel Diallo vs Terence Atmane

Platform comparison

Active sub-markets

Market context

Gabriel Diallo and Terence Atmane are set to meet at the Lexus Eastbourne Open, a grass-court event running through 27 June at Devonshire Park, with ATP daily scheduling already live for the tournament. The market is therefore keyed to whether the fixture is actually completed and who *advances*, not merely whether the pairing appears on the draw sheet.[4][1]

A 100% implied “YES” in a two-player head-to-head is usually a sign that the outcome has either been fully decided by match status or that the market is heavily anchored to a confirmed advancement state rather than live pricing. For programmatic users, the relevant check is the official order of play and result feed: if the match is played to a winner, settlement follows the advancing player; if it is cancelled, tied, or left unresolved beyond the seven-day delay window, the contract flips to 50-50 under the stated rules. The ATP and tournament listings are the best comparable references for whether Eastbourne is on schedule and in-progress.[4][3]

The main catalysts are operational rather than speculative: court schedule changes, withdrawals, walkovers, retirements, and weather delays at a grass event that typically runs on a tight daily timetable. Southern Railway’s tournament guide notes Eastbourne matches usually begin around 11:00am local time, so any deviation from that pattern is worth tracking through official updates, scoreboards, and draw pages rather than social posts. For a bot or conditional-order workflow, the useful signals are “match started”, “match completed”, and “winner declared”, because those are the state changes that determine whether this market resolves to one player or to the fallback 50-50.[1][7][4]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Lexus Eastbourne Open: Gabriel Diallo vs Terence Atmane 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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Review 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.

What does it cost to trade on Polymarket Review UK?

Zero. Polymarket Review UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.