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Roland Garros, Qualification ATP: Arthur Fery vs Pedro Martinez

"Roland Garros, Qualification ATP: Arthur Fery vs Pedro Martinez" across the four most-traded political prediction venues — live data, regulatory notes, every CTA to PolyGram.

0% YES 100% NO Volume: $805K Liquidity: $239K Closes: 27 May 2026
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Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
PolyGram Pick
polygram.ink
0% 100% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Open on PolyGram →
Polymarket
polymarket.com
0% 100% 0% Geo-blocked in US/UK/EU USDC, on-chain Open on PolyGram →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Open on PolyGram →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Open on PolyGram →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Open on PolyGram →

Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on PolyGram.

Active sub-markets

Market context

Arthur Fery and Pedro Martinez are due to meet in Roland Garros qualifying, with the market effectively pricing a near coin toss. The crowd’s 50% implied probability reflects a clash between Fery’s stronger recent form and Martinez’s higher standing on clay-court pedigree and ranking. Tipstop has Martinez installed as the clear betting favourite, while noting Fery has won six of his last ten matches; Roland Garros’ own player page lists Martinez with a long ATP-level record and the match as a qualifying second-round fixture on Court 10.

The closest comparable read is to treat this as a match where surface and stage matter as much as raw recent results. Fery has posted a strong run over the past year, but his ATP-level record remains limited, whereas Martinez is a more established tour player and is the sort of opponent who can punish lapses in longer rallies on clay. Market pricing around 50% suggests traders have not settled on whether Fery’s current form is enough to offset Martinez’s experience in a Grand Slam qualifying setting.

The main catalysts are straightforward: whether the match starts on schedule, whether it is completed within the settlement window, and, if it is played, which player survives the opening service games and any long sets. Sofascore and Flashscore both list the match for 20 May at 11:30 UTC on Court 10, and Roland Garros’ official listings confirm Martinez’s qualifying draw placement. If play is delayed or interrupted, the 50-50 fallback remains relevant; if it goes ahead, traders will be leaning on live reports and score updates rather than any later announcement.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Roland Garros, Qualification ATP: Arthur Fery vs Pedro Martinez across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. PolyGram routes every trade through to Polymarket — at 0% fees.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

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.
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.

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