Stuttgart Open: Mattia Bellucci vs Yannick Hanfmann

Platform comparison

Active sub-markets

Market context

The Stuttgart Open grass-court tournament will host a first-round encounter between Italian qualifier Mattia Bellucci and German wildcard Yannick Hanfmann on 10 June 2026. Polymarket currently prices Bellucci's advancement at 37 cents on the dollar, implying roughly a 37% probability he defeats Hanfmann and progresses. The conditional token structure on Polygon means traders holding YES tokens receive full settlement value only if Bellucci wins; NO holders profit if Hanfmann advances. The settlement window closes 17 June, allowing a week's buffer beyond the scheduled match date to accommodate potential delays without triggering the 50-50 tie-break clause.

Hanfmann, a German player competing on home soil with tournament wildcard status, typically holds advantage in such circumstances. Grass-court specialists and home-nation competitors have historically outperformed seeding expectations at Stuttgart, where local knowledge and crowd support measurably influence first-round outcomes. Bellucci's qualifier status suggests he enters without direct seeding protection, though Italian players have shown competitive strength on European grass in recent seasons. The current 37% pricing reflects modest confidence in the qualifier's chances against a domestically-positioned opponent.

Traders should monitor official Stuttgart Open draw confirmations and any late withdrawals or injury announcements affecting either player's fitness. Grass-court form during the preceding week—particularly performances at Queen's Club or Halle tournaments—will signal preparation levels. Weather conditions on match day carry particular weight on grass surfaces, where moisture and court speed fluctuate significantly. Any schedule adjustments or venue changes from the announced 4:00 AM ET slot should be tracked against the settlement window deadline.

Methodology

We track Stuttgart Open: Mattia Bellucci vs Yannick Hanfmann 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

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.

What does it cost to trade on Polymarket UK?

Zero. Polymarket 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 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.