Swedish Open: Jesper de Jong vs Vilius Gaubas

Platform comparison

Market context

Jesper de Jong faces Vilius Gaubas in the Round of 32 at the 2026 ATP Swedish Open in Båstad, with the match scheduled to begin on 13 July 2026. The prediction market currently implies a 70% probability that de Jong advances, a figure notably higher than the consensus from major sportsbooks and analytics models. TAB lists de Jong at $1.44, translating to roughly 69%, while Dimers’ simulation model assigns him a 63.5% win chance, and Tennis.com projects a 66% probability [1][2][3]. This divergence suggests the prediction market is pricing in a stronger favourite than traditional bookmakers, potentially reflecting crowd sentiment or specific liquidity dynamics rather than pure model output.

Historically, such gaps between prediction-market implied probabilities and sportsbook lines in ATP Round of 32 matches have often narrowed once live betting opens, especially when the underdog shows early set competitiveness. In comparable 2025 clay-court qualifiers, markets initially overpriced the favourite by 5–8% before correcting after first-set data emerged. Traders should monitor the official start time confirmation and any pre-match injury reports, as delays beyond seven days trigger a 50–50 resolution. The match is set for 08:40 ET at Båstad Tennis Stadium, and any change to this window could materially shift the implied probability [2][6].

Key catalysts include the first-set outcome and de Jong’s serve efficiency, which analytics highlight as his primary advantage. SkyBet offers de Jong 2–0 at 6/5, implying a 62.5% chance for that exact score, slightly below the market’s 70% overall win probability [9]. Watch for any late schedule adjustments from the ATP or Nordea Open organisers, as weather in Båstad can delay clay-court play. The settlement window closes on 20 July 2026, giving traders a week to react to post-match developments if the result is contested or delayed.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Swedish Open: Jesper de Jong vs Vilius Gaubas 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 Best Prediction Markets, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets 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.