Swiss Open: Alexander Bublik vs Quentin Halys

Platform comparison

Market context

Alexander Bublik faces Quentin Halys in the second round of the Swiss Open at Gstaad, a match originally set for 15 July but now live as traders assess Bublik’s title defence. In prediction markets, a YES share pays out if the event occurs—here, if Bublik advances—while a NO share pays if he loses or the match ends unresolved. The current crowd-implied probability of 82% YES suggests strong confidence in Bublik, though this diverges notably from external models.

Historical data shows such gaps often signal either late information flow or market overreaction to reputation. While the crowd favours Bublik heavily, independent analytics from Dimers and Stats Insider project his win chance at 65% [5][6], and Tennis.com’s projected winner favours Halys at 66% [1]. Similar mismatches in ATP events have resolved closer to model averages when fatigue or form shifts emerge mid-tournament.

Traders should monitor Bublik’s pre-match warm-up status and any official updates on his fitness, as he is defending the title and under pressure after a difficult start to form [8]. Halys, having already played a match in Gstaad, may hold a freshness edge, a factor highlighted in SportyTrader’s handicap analysis [3]. Watch for any walkover announcements or weather delays, which would trigger a 50-50 resolution per market rules [2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Swiss Open: Alexander Bublik vs Quentin Halys 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 Market UK, which mirrors the Polymarket order book at 0% fees.

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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Market UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.