Halle Open: Terence Atmane vs Martin Landaluce

Platform comparison

Active sub-markets

Market context

The Halle Open grass-court tournament will host a first-round encounter between Frenchman Terence Atmane and Spaniard Martin Landaluce on 15 June 2026. The 0% implied probability reflects either minimal trading activity or a technical issue, as both players carry ATP ranking credentials and the match carries standard tournament logistics. Settlement closes seven days after the scheduled start, with tie-break or cancellation scenarios resolving to 50-50.

Atmane, ranked in the 200s range, has built his career on clay and hard courts with occasional grass appearances; Landaluce, similarly positioned in ATP rankings, competes across surfaces but lacks a pronounced grass-court record. Historical precedent suggests first-round grass matches between players of comparable ranking typically split evenly when neither has demonstrated seasonal form or recent tournament results that would justify extreme confidence. The 0% reading sits well outside normal market behaviour for competitive matches and warrants scrutiny—either the market has frozen due to low liquidity or settlement mechanics have created a data anomaly.

Traders should monitor official Halle tournament draws and player withdrawal announcements through early June, as injury or late schedule changes affect grass-court preparation windows. Recent ATP communications regarding the 2026 grass season will clarify whether either player has committed to warm-up events preceding Halle. Atmane's recent match results and Landaluce's surface-specific performance in May tournaments will provide the most reliable catalyst for repricing before the settlement window closes on 22 June.

Methodology

We track Halle Open: Terence Atmane vs Martin Landaluce 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 Who Will Win 2026, 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.

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, Who Will Win 2026 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.