Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Best Prediction Markets UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Best Prediction Markets UK → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Best Prediction Markets UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Best Prediction Markets UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Best Prediction Markets UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Best Prediction Markets 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 Best Prediction Markets UK.
Active sub-markets
| Roland Garros WTA: Elina Svitolina vs Marta Kostyuk Match O/U 21.5 | 100% Over | 0% Under |
| Roland Garros WTA: Elina Svitolina vs Marta Kostyuk Match O/U 22.5 | 100% Over | 0% Under |
| Roland Garros WTA: Elina Svitolina vs Marta Kostyuk Match O/U 23.5 | 100% Over | 0% Under |
| Roland Garros WTA: Elina Svitolina vs Marta Kostyuk Set 1 O/U 8.5 | 100% Over | 0% Under |
| Roland Garros WTA: Elina Svitolina vs Marta Kostyuk Set Handicap +/-1.5 | 0% Kostyuk | 100% Svitolina |
| Roland Garros WTA: Elina Svitolina vs Marta Kostyuk Set 1 Winner | 0% Svitolina | 100% Kostyuk |
Market context
Svitolina and Kostyuk are scheduled to meet in the second round of Roland Garros on 2 June 2026. The crowd-implied probability stands at 100% YES, suggesting near-certainty that the match will be played and completed. This reflects confidence in both players' fitness and the tournament's scheduling robustness, though the settlement window extends to 9 June to account for potential delays.
Historical context shows that second-round matches at Roland Garros rarely fail to complete, with cancellations or extended delays occurring in fewer than 2% of cases over the past decade. Both Svitolina and Kostyuk have established track records of durability on clay; Svitolina reached the semi-finals at Roland Garros in 2015, whilst Kostyuk has competed consistently in main-draw events since 2019. The 100% probability reflects this baseline reliability rather than a prediction of either player's victory.
Traders should monitor injury reports in the week preceding the match, particularly given the intensity of first-round fixtures. Weather forecasts for Paris on 2 June will influence scheduling; rain delays are common at Roland Garros but rarely prevent completion within the seven-day window. Any late withdrawal by either player—whether due to injury, illness, or scheduling conflict—would trigger the 50-50 resolution clause. Current sportsbook lines on the match outcome itself remain unavailable in public markets, making this completion-focused contract distinct from head-to-head betting on the result.
Methodology
This page reviews Roland Garros WTA: Elina Svitolina vs Marta Kostyuk across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Best Prediction Markets UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.
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
- Is this market available outside the US?
- Best Prediction Markets UK 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 Best Prediction Markets UK?
- Zero. Best Prediction Markets UK 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, Best Prediction Markets 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.
Trade Roland Garros WTA: Elina Svitolina vs Marta Kostyuk on Best Prediction Markets UK
Live order book, 0% fees, USDC settlement in seconds.
Trade on Best Prediction Markets UK →