Generali Open: Yannick Hanfmann vs Sebastian Baez

Platform comparison

Market context

The latest shift is that **Sebastian Báez is still the market favourite, but only narrowly**, with Tennis.com showing a 55% projected win probability for Báez against 45% for Yannick Hanfmann.[2] That is broadly consistent with recent preview pricing and tipping, which generally lean Báez, but not by much: one preview has Báez at around 1.57 in the odds and another set of market odds implied a similar mid-50s chance.[4][9]

That modest edge fits the matchup profile. Báez has been the more established clay-court player, while Hanfmann’s case rests on form and the possibility of pushing a longer match; several previews expect a tight contest, including calls for over 2.5 sets or a three-set result.[1][3][5] Hanfmann’s recent results on the clay swing have also kept him relevant in trading, which helps explain why the price is not one-sided.[8]

For traders, the key catalysts are simply whether the quarter-final goes ahead on schedule and whether either player’s path through the tournament changes the opponent dynamics before play. The match is listed for ATP Kitzbühel on clay and is being tracked as a quarter-final, with live listings already in place for the 23 July slot.[2][8][10] In practical terms, the main watch-points are official order-of-play updates, any weather-related delay, and whether the fixture is completed inside the settlement window; if it is postponed beyond seven days or not played, the market rules point to a 50-50 result.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Generali Open: Yannick Hanfmann vs Sebastian Baez across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Today, which mirrors the Polymarket order book at 0% fees.

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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.