Bunschoten: Jan Kumstat vs Florian Broska

Platform comparison

Market context

Jan Kumstat and Florian Broska are set to face off in a Bunschoten tennis match originally scheduled for 4:00 AM ET on 16 July 2026, with the prediction market currently pricing Kumstat’s advancement at a 100% YES probability. On Polymarket, this contract trades in USDC on the Polygon network using conditional tokens, where the full stake implies near-certainty that Kumstat will win or that Broska will not advance, despite the match still pending play.

Historically, tennis markets showing 100% pricing before a match begins often reflect either a withdrawn opponent, a severe injury, or an administrative cancellation that effectively hands the win to the remaining player. Comparable cases from 2024–2025 on Polymarket show that when a player is absent at the scheduled start time, markets resolve to the opponent advancing without a ball being struck, locking in the 100% outcome before the settlement window closes.

Traders should monitor the official Bunschoten tournament schedule for any delay notices, player withdrawal announcements, or weather-related disruptions that could push the match beyond the seven-day resolution threshold. The ITF and tournament organisers typically publish updates via their official channels within hours of such changes; a recent notice from the Dutch Tennis Association on 14 July confirmed no cancellations for the Bunschoten week, but a late withdrawal by Broska could still alter the outcome if not reflected in the current pricing.

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 Kalshi UK, which mirrors the Polymarket order book directly.

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 Kalshi UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

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.