Roland Garros, Qualification ATP: Emilio Nava vs Pedro Martinez

Platform comparison

Active sub-markets

Market context

Emilio Nava and Pedro Martinez met in Roland Garros qualifying on 22 May 2026, with Martinez already having led their head-to-head 2-0 before this meeting. Their most recent previous clash, at the 2024 Valencia Challenger, was on clay and went two tie-breaks, which is a useful reminder that the matchup can be tighter than a simple ranking gap suggests. Even so, the crowd-implied 100% YES pricing leaves no room for a competitive read: on most venues that would be shown as an extreme decimal price rather than a near-certain probability, and it would normally reflect a market either locked by live information or trading at the edge of settlement rather than a genuine pre-match forecast.

For comparison across platforms, Kalshi’s tennis contracts are quoted in $0.00–$1.00 terms and tend to mirror probability directly, while Polymarket and Betfair present the same view differently through odds and liquidity, and Smarkets typically adds commission on winnings rather than embedding the cost in the price. On this specific market, the key catalysts are procedural rather than form-based: whether Roland Garros has already recorded the match as completed, whether either player has advanced via retirement or walkover, and whether the result has been pushed into the settlement window without an official winner. Roland Garros’ own player and draw pages, along with live-score services such as Sofascore and Flashscore, are the most relevant checks here; if the match is listed as finished and one player is shown progressing, the contract should settle accordingly, but if play is cancelled or left unresolved past seven days it can still revert to 50-50.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read Roland Garros, Qualification ATP: Emilio Nava vs Pedro Martinez from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.

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.