Zug: Jerome Kym vs Philip Henning

Platform comparison

Market context

Jerome Kym’s scheduled meeting with Philip Henning in Zug is priced at **0% YES** on the crowd market, which is effectively a signal that the contract is already in a settled or near-settled state rather than a live, balanced tennis price. The available market page shows heavy activity but does not provide a conventional matchline, so there is no obvious sportsbook comparison to anchor a normal pre-match probability; in practice, a 0% market usually means traders expect the event to resolve away from the named outcome, most often through cancellation, retirement, or administrative settlement rather than a completed upset. [1]

For historical context, prediction markets on tennis often move sharply when the scheduled start date passes without a confirmed result, because settlement rules can turn a match into a binary administrative question rather than a pure sporting one. That matters here because the contract resolves to 50-50 if the match is not played, or if it is delayed beyond seven days without a winner, and also if it begins but is unfinished without an advancing player. Comparable cases on exchange-style sports markets regularly diverge from analyst opinion when the real issue is whether play happens at all, not who is stronger on court. [1]

The main catalysts to watch are simple: official tournament order-of-play updates, any withdrawal or walkover announcement, and whether the match was actually contested before the settlement window closes on 29 July. If no completed result is recorded, the market mechanics—not tennis form—will dominate the final resolution. That leaves the practical trading question less about Kym versus Henning and more about whether the scheduled fixture was ever meaningfully played. [1]

Sources: 1

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

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.

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.

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.