US Open, Qualification ATP: Pol Martin Tiffon vs Tom Gentzsch

Platform comparison

Market context

Pol Martín Tiffon and Tom Gentzsch were drawn to meet in the US Open men’s qualifying first round, with the match listed for 24 August and the tournament’s qualifying slate running from 24–27 August before the main draw qualifiers are decided on Thursday[1][2]. The market’s 0% YES price reads as a stale or effectively dead ticket only if the match was not played as scheduled; if the result is still pending, the binary settlement remains live until the contract’s deadline, and a no-contest or unresolved outcome would push it to 50-50 under the rules.

For context, Gentzsch entered the draw as the higher-ranked player, listed around ATP 145 against Tiffon’s ATP 209, which is the sort of ranking gap that can anchor early prices in qualifying where three wins are needed to reach the main draw[1][2]. Comparable US Open qualifying markets often move sharply once the official order of play is confirmed, because postponements, court changes and retirements can flip a near-lock into a void or split-resolution scenario; that matters here because the contract resolves on advancement, not simply on whether the match was scheduled.

Catalysts to watch are straightforward: official draw updates, any change to the qualifying order of play, weather or court-schedule disruption in New York, and whether the match is finally recorded as completed in the event feed. On-chain, the settlement question is a USDC binary, so wider BTC and ETH moves mostly matter only through risk appetite and liquidity rather than direct event linkage; if crypto funding is hot or spot volatility spikes, order books in small-cap prediction markets can still thin out and exaggerate the implied probability.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reads US Open, Qualification ATP: Pol Martin Tiffon vs Tom Gentzsch on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

UK Frequently Asked Questions

Why USDC and not ETH or USDT?

USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.

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No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.

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Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

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