Roland Garros ATP: Hugo Dellien vs Valentin Royer

Platform comparison

Active sub-markets

Market context

Hugo Dellien of Bolivia faces Valentin Royer of France in the opening round of Roland Garros ATP on 24 May 2026. The market currently prices Dellien's advancement at zero, reflecting either extreme confidence in Royer or minimal liquidity on Polygon's conditional token infrastructure. At present, the YES side (Dellien) carries no discernible value in USDC terms, whilst the NO side (Royer) absorbs all implied probability mass.

Dellien, ranked outside the top 100, has competed sporadically on the ATP circuit and holds a modest record at Grand Slams, whilst Royer, a French domestic prospect, typically competes lower down the professional ladder. Historical precedent suggests that when a lower-ranked player faces a home-nation qualifier or lucky loser at Roland Garros, the favourite often reflects marginal skill differentials rather than dominant form. The 0% pricing on Dellien implies either a significant seeding advantage for Royer or market participants holding firm conviction about the matchup's outcome before draw confirmation.

Traders should monitor the official Roland Garros draw release and any late withdrawals that might trigger the match cancellation clause. Injury announcements in the fortnight preceding 24 May will be critical; the settlement window extends to 31 May, allowing seven days for rescheduling before resolution defaults to 50-50. Weather disruptions at Roland Garros frequently delay clay-court matches, and any suspension beyond the seven-day window would split the contract equally between both sides on Polygon.

Methodology

We track Roland Garros ATP: Hugo Dellien vs Valentin Royer 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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.

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.