Roland Garros, Qualification ATP: Arthur Fery vs Pedro Martinez

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Active sub-markets

Market context

Arthur Fery is due to play Pedro Martinez in Roland Garros qualifying, but the contract is still pricing at 0% YES. On Polymarket, that means traders are effectively assigning no probability to Fery advancing, with positions settled in USDC on Polygon through conditional tokens rather than a conventional sportsbook result. Given the market’s fallback rules, the practical question is not just who wins on clay, but whether the match is completed within the settlement window or slips into a no-decision outcome.

The clearest historical read is the clay gap between the two players. Martinez is the more established red-dirt competitor, and the market appears to be treating that surface edge as decisive. Public pre-match indicators are similarly one-sided: Tipstop lists Martinez as the favourite at 1.58 versus 2.27 for Fery, despite Fery’s better last-10 win rate, and notes that Fery can be vulnerable in longer matches when expected to perform. Comparable Roland Garros qualifying match-ups often hinge less on recent raw win percentage than on clay pedigree, return quality and rally tolerance, which favours the Spaniard here.

For traders, the main catalysts are straightforward: official order-of-play updates, any delay from the Paris schedule, and whether the match is actually completed before the 7-day deadline. Sofascore had the match listed for 20 May at Court 10 in Paris, while Kalshi and Polymarket both carried the fixture as a live qualification market, reinforcing that settlement depends on the ATP/Roland Garros result, not just on whether play starts. If the match is postponed, interrupted or abandoned without a winner advancing, the contract can still resolve 50-50, so timing matters as much as the scoreline.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Roland Garros, Qualification ATP: Arthur Fery vs Pedro Martinez 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

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 does it cost to trade on PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.