Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
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
Tereza Valentova and Magda Linette are scheduled to meet in the first round of Roland Garros on 24 May 2026. Valentova, a Czech player ranked outside the top 100, has competed sporadically on the WTA tour with limited clay-court form. Linette, a Polish competitor who has reached the top 30 in career rankings, brings greater experience at Grand Slams and a more established baseline game, though her recent seasons have seen inconsistent results and ranking fluctuations between the 40s and 80s.
The 0% implied probability reflects Linette's superior ranking and Grand Slam pedigree, yet this assessment warrants scrutiny given the unpredictability of first-round matchups at Roland Garros. Valentova's lack of recent tour visibility makes her a genuine unknown quantity; players emerging from qualifying or lower-ranked positions have upset favoured opponents at clay majors when conditions suit their game. Linette's history includes both dominant performances and surprising early exits, suggesting the gap between the two is not as pronounced as the market currently prices.
Traders should monitor both players' qualifying results and any late-stage withdrawals or injury announcements in the week preceding the match. Linette's fitness and recent tournament activity heading into Roland Garros will be critical; extended absences or poor form in warm-up events could narrow the perceived advantage. Valentova's path through qualifying, if required, and her clay-court performance in the weeks before the tournament will provide clearer evidence of her competitive level. Any coaching changes or equipment modifications announced by either player's camp could also signal tactical adjustments worth tracking.
Methodology
We track Roland Garros WTA: Tereza Valentova vs Magda Linette 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
- 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.
- 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, PolyGram triggers a quick verification flow that finishes in minutes.
Trade Roland Garros WTA: Tereza Valentova vs Magda Linette on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
Trade on PolyGram →