Tampere: Gauthier Onclin vs Tom Gentzsch

Platform comparison

Market context

Polymarket is pricing the Tampere quarterfinal contract at **100% YES** on Gauthier Onclin, so the on-chain market is effectively treating his advance as a foregone conclusion rather than a live toss-up. On Polymarket, that means traders holding the YES side in USDC on Polygon are already paying the maximum implied price for conditional tokens tied to Onclin’s progression, with almost no discount for upset risk.

That stands in contrast to the pre-match tennis indicators. Tennis.com lists the meeting as a quarterfinal and shows a projected winner split of **52%** for Onclin[1], while Tennis Tonic’s preview leans to Onclin but still frames it as a competitive contest, with odds of **1.78** for Onclin and **1.9** for Gentzsch[2]. In other words, the sporting consensus is mildly in Onclin’s favour, but nowhere near the certainty implied by the market.

For a Polymarket trader, the main catalysts are straightforward: whether the match is actually played, whether it starts on schedule, and whether either player withdraws or the fixture is moved beyond the market’s seven-day settlement window. The market description also matters mechanically: if the match is cancelled, tied, or delayed too long without a winner, it resolves 50-50, so any scheduling uncertainty can affect payout even before a ball is struck.

Sources: 1 · 2

Methodology

This page reviews Tampere: Gauthier Onclin vs Tom Gentzsch 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 PolyGram, which mirrors the Polymarket order book at 0% fees.

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'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.