Wimbledon ATP: Hamad Medjedovic vs Sebastian Ofner

Platform comparison

Market context

The real-world event is the first-round Wimbledon ATP match between Hamad Medjedovic and Sebastian Ofner, scheduled to begin on Court 8 at 2:00 pm ET on 29 June 2026. In prediction markets, a YES share pays out if the market resolves to the named outcome (here, Medjedovic advancing), while a NO share pays out if the outcome does not occur. This specific market currently shows a 0% crowd-implied probability for Medjedovic winning, a stark contrast to initial odds that favoured him at 1.45 against Ofner’s 2.74, suggesting the market has reacted to late information or a potential withdrawal not yet widely confirmed in public news[1].

Historically, such extreme probability shifts often precede match cancellations, player injuries, or administrative delays, as seen in previous Wimbledon rounds where odds collapsed before players were ruled out. Traders should monitor official tournament announcements, player social media for injury updates, and the ATP’s daily schedule for any changes to the match listing, as these are the primary catalysts that will determine whether the market resolves to a winner or the 50-50 tie clause[2]. Recent coverage from Tennis Tonic still lists Medjedovic as the pick to win in five sets, indicating the 0% probability may reflect a market-specific anomaly rather than a confirmed real-world cancellation[1].

The settlement window ends on 6 July 2026, so any delay beyond seven days from the scheduled date without a winner will trigger the 50-50 resolution. Traders must watch for official match status updates from the All England Lawn Tennis and Croquet Club, as these are the definitive sources that will confirm whether the match proceeds, is postponed, or is cancelled[2]. The head-to-head record shows Ofner leads 1-0 overall and 1-0 on grass, adding context to why the market may have adjusted if Ofner’s fitness or readiness is now considered superior[1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Wimbledon ATP: Hamad Medjedovic vs Sebastian Ofner 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

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

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.

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.

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.