Hagen: Tom Gentzsch vs Zsombor Piros

Platform comparison

Market context

Tom Gentzsch and Zsombor Piros are set to meet in Hagen, and the market is effectively pricing a full-time Gentzsch advance with crowd-implied probability at **100% YES**. That is notably firmer than the consensus across listed bookmakers and forecast sites, which still lean towards Piros: Tennis Temple shows average odds of 1.47 for Piros and 2.53 for Gentzsch, while Sportsbet lists Piros at 1.50 and Gentzsch at 2.45.[7][3] Tennis Tonic also calls Piros the pick, with opening odds of 1.66 for Piros and 2.06 for Gentzsch, suggesting the sportsbook/preview side is materially more split than the contract price implies.[1]

The useful historical frame is that these two have already produced a live market before, and that earlier pricing also favoured Piros in the pre-match odds even when some preview pieces argued for Gentzsch.[4][17] Current market screens show the same broad pattern: prediction models and bookmaker averages cluster around Piros as the favourite, but not by a margin large enough to justify a 100% win expectation on match outcome alone.[12][7] For traders, that makes the contract more sensitive to event mechanics than to pure tennis opinion: the key question is whether the match completes cleanly inside the settlement window, because a cancellation, tie, or delay beyond seven days would force a 50-50 resolution under the rules.

The main catalysts to watch are the official draw and order-of-play updates, any court-time changes, and live completion status from the event feed. Flashscore and Sofascore both carried the fixture on 8 August, which matters because once play starts, the settlement outcome depends on whether a player actually advances rather than on pre-match price alone.[6][5] If the match is postponed, interrupted, or moved late in the schedule, the contract’s fallback language becomes relevant; if it is completed, the wide gap between the contract’s 100% and the bookmaker consensus is the key cross-platform divergence.[11][7]

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

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.

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.

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.