Stuttgart Open: Jiri Lehecka vs James Duckworth

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Active sub-markets

Market context

The Stuttgart Open, held annually on grass courts in Baden-Württemberg, draws elite ATP players competing for ranking points in the lead-up to Wimbledon. Jiri Lehecka, the Czech world number 27, and James Duckworth, the Australian ranked outside the top 100, were scheduled to meet in the early rounds on 11 June 2026. The 0% implied probability reflects either a technical issue with market seeding or genuine uncertainty about whether the match will occur at all—Stuttgart's grass season is weather-dependent, and scheduling conflicts occasionally force withdrawals or rescheduling beyond the seven-day tolerance threshold built into this market's resolution criteria.

Historical precedent from ATP grass-court events shows that matches between top-30 and lower-ranked players rarely fail to complete once begun; Lehecka's recent form and ranking advantage make him the clear favourite in conventional betting markets. However, the current zero probability suggests traders are pricing in either a high likelihood of cancellation or withdrawal rather than competitive uncertainty. Duckworth has a history of injury-related withdrawals, and early-June scheduling can clash with players' preparation windows or lingering issues from the preceding clay-court season.

The settlement window closes on 18 June 2026 at 08:00 UTC, allowing a full week for the match to be played. Traders should monitor ATP official announcements for draw confirmations, weather forecasts for Stuttgart in mid-June, and any injury reports from either player's camp in the days preceding the event. Under German GlüStV regulations, this market is accessible to EU residents; US CFTC reach does not apply to non-US-domiciled prediction platforms, though US traders may face restrictions. The no-KYC threshold of $1,500 applies to aggregate positions, meaning traders can establish positions below that limit without identity verification on compliant platforms.

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'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.

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.