Swedish Open: Jesper de Jong vs Sebastian Baez

Platform comparison

Market context

Jesper de Jong faces Sebastian Baez in the Round of 16 at the 2026 Swedish Open in Båstad, with the match scheduled to begin shortly. On Polymarket, this contract trades at a 51% implied probability for de Jong advancing, reflecting a near-even split where the conditional tokens on Polygon are priced for a tight contest. The market settles to the advancing player, with a 50-50 resolution if the match is cancelled, delayed beyond seven days, or ends in a walkover before the first set completes.

Historical pricing on similar ATP clay-court second-round matches often sees modelled probabilities diverge slightly from crowd sentiment when one player holds a clear surface advantage. Dimers’ advanced tennis model currently assigns de Jong a 54% win chance, while Tennis.com’s projection leans slightly toward Baez at 52%, creating a narrow spread that mirrors the current 51% market price [3][4]. This divergence suggests traders are weighing de Jong’s recent form against Baez’s clay-court pedigree, with the on-chain USDC liquidity absorbing the tension between these competing signals.

Traders should monitor the official start-time confirmation and any pre-match injury reports from the tournament organisers, as a walkover before the first set triggers a 50-50 resolution [7]. The Nordea Open schedule lists the match at 14:30 local time, and any delay beyond this window could impact liquidity as conditional tokens approach settlement. Recent preview coverage from The Stats Zone tips de Jong to win, while Tennis Tonic favours Baez in three sets, highlighting the uncertainty that keeps the price hovering near parity [1][5].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.

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

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 PolyGram. 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.

Do I need to KYC for this market?

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