Swedish Open: Jesper de Jong vs Vilius Gaubas

Platform comparison

Market context

Jesper de Jong faces Vilius Gaubas in the opening round of the ATP 250 Swedish Open in Båstad, with the match scheduled to begin at 11:00 am local time on 13 July 2026[1]. The contest takes place on centre court, where de Jong holds a 1–0 head-to-head advantage after a 6–3 victory in their previous encounter at the 2025 US Open qualifying[4][8].

Historical models and traditional bookmakers align closely with the current 70% implied probability on Polymarket, though conventional sportsbooks like FanDuel and SkyBet price de Jong slightly lower at 64–66% win probability, corresponding to moneyline odds of –194 or fractional odds of 2/5[2][3][10]. This divergence highlights how platforms differ: Polymarket uses binary implied probabilities while Kalshi, Betfair, and Smarkets typically display decimal or fractional odds, and fee structures vary significantly, with some requiring KYC while others remain permissionless.

Traders should monitor live court conditions and any pre-match injury announcements, as clay-court form can shift rapidly; de Jong’s recent wins against Federico Cina and Karen Khachanov suggest strong momentum, though a loss to Alexander Zverev in May indicates vulnerability against top-tier opponents[9]. No major scheduling changes have been reported as of 13 July, but the match’s resolution depends on completion within seven days, with a 50–50 outcome if delayed or cancelled[1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read Swedish Open: Jesper de Jong vs Vilius Gaubas from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

What about Smarkets as an alternative?

Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Kalshi Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.