Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi UK → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Kalshi UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Kalshi UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Kalshi UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Kalshi UK → |
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 Kalshi UK.
Active sub-markets
Market context
Hurkacz and Tiafoe are scheduled to meet in the second round of Roland Garros on 27 May 2026, with the match priced at 100% YES on Polymarket's conditional token structure. The market's settlement hinges on whether this fixture actually occurs and produces a decisive result within the seven-day window. Currently, the USDC-denominated contract reflects absolute certainty that the match will be played and completed, leaving no room for the 50-50 tie-break scenario that would trigger if the match is postponed beyond 4 June or abandoned mid-play.
Historically, second-round clay-court matches between top-100 players rarely fail to reach completion, though weather delays at Roland Garros are routine. Hurkacz has struggled on clay relative to his hard-court form, whilst Tiafoe has shown inconsistent results on the surface. The 100% pricing suggests traders are discounting cancellation risk almost entirely, despite the settlement window's explicit provisions for postponement beyond seven days. This probability appears anchored to the ATP's standard scheduling discipline rather than match-specific factors.
Traders should monitor the official Roland Garros draw confirmation and any weather forecasts for late May in Paris. The ATP's rain protocols and court availability will determine whether delays trigger the tie-break resolution. Recent tournament schedules have shown improved scheduling efficiency, though clay-court events remain weather-dependent. Any announcement of first-round upsets or injuries affecting the draw could shift fixture timing, though the current market pricing suggests minimal concern about these catalysts.
Methodology
We track Roland Garros ATP: Hubert Hurkacz vs Frances Tiafoe 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
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
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'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, Kalshi UK 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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