Hagen: Thiago Monteiro vs Tom Gentzsch

Platform comparison

Market context

Thiago Monteiro and Tom Gentzsch are still being priced as a live but unsettled matchup, with the market at **35% YES** as of the latest crowd view. That is below a true coin-flip price, which suggests traders are still giving Monteiro the edge, but not by a wide margin.

The main read-through is form and profile rather than head-to-head history: 365Scores says there is no previous meeting data between the two, so there is no direct matchup record to anchor the price.[4][8] Comparable tennis markets often swing on ranking gap, surface fit, and whether the favourite is expected to control return games; Monteiro is listed in recent tennis prediction data at a higher ranking than Gentzsch, which helps explain why the market is not treating this as an even contest.[11]

For traders, the key catalysts are whether the fixture is actually played on schedule and whether any late change alters the draw order or timing. Live tennis listings and betting boards still show the match as active, but Flashscore’s match page currently returns “No match found”, which can happen when a fixture is delayed, relocated, or not yet fully keyed into live systems.[1][2][7] Because the settlement window extends to 11 August, the biggest watch item is whether the Hagen schedule is confirmed and whether either player advances without completing a full match, since that can trigger the market’s special settlement rules.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Hagen: Thiago Monteiro vs Tom Gentzsch across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

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

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.