Roland Garros, Qualification ATP: Gianluca Cadenasso vs Leandro Riedi

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Market context

Gianluca Cadenasso and Leandro Riedi were due to meet in Roland Garros qualifying on 20 May, with the market still showing 0% YES. For a programmatic trader, that sort of stale price usually means the contract is either untouched or the feed is not updating, so the first check is whether the match has actually started and whether any winner has been recorded by the settlement deadline. If play is abandoned before completion, the market rules matter more than in-play scorelines: a match not played, a tie, or a delay beyond seven days from the scheduled date would settle 50-50, not to either player.

Historically, qualifying-round tennis markets can stay near zero until confirmed line-ups, then reprice sharply once the draw, court assignment and order of play are locked in. Comparable ATP qualifying contracts tend to hinge on a small set of inputs: player availability, late withdrawals, and whether the event keeps its published schedule on the clay courts in Paris. In a copy-trading or conditional-order setup, the useful trigger is not the odds itself but the status state: scheduled, on court, in progress, completed, or postponed. Once the match is official in live scoring feeds such as SofaScore or Flashscore, the contract should be treated as outcome-dependent rather than schedule-dependent.

The main catalysts are simple operational ones: the French Open qualifying order of play, any medical timeout or retirement, and any rain interruption that pushes completion outside the seven-day window. Before a settlement decision, traders should verify the match status across the tournament’s live scoring feed and at least one secondary source, then map that against the market’s specific delay clause. If the match starts but is not completed, the settlement logic depends on the eventual official winner; if there is no winner within the permitted window, the fallback is a 50-50 resolution.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Roland Garros, Qualification ATP: Gianluca Cadenasso vs Leandro Riedi on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in 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.