Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Who Will Win 2026 Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Who Will Win 2026 → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Who Will Win 2026 → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Who Will Win 2026 → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Who Will Win 2026 → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Who Will Win 2026 → |
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 Who Will Win 2026.
Active sub-markets
| Mallorca Championships: Vit Kopriva vs Ignacio Buse Set 2 Winner | 100% Kopriva | 0% Buse |
| Mallorca Championships: Vit Kopriva vs Ignacio Buse Set Handicap +/-1.5 | 0% Buse | 100% Kopriva |
| Mallorca Championships: Vit Kopriva vs Ignacio Buse Set 1 Winner | 100% Kopriva | 0% Buse |
| Mallorca Championships: Vit Kopriva vs Ignacio Buse Match O/U 22.5 | 0% Over | 100% Under |
| Mallorca Championships: Vit Kopriva vs Ignacio Buse Match O/U 23.5 | 0% Over | 100% Under |
| Completed Match | 100% YES | 0% NO |
Market context
Vit Kopriva and Ignacio Buse are set to clash in the second round of the Mallorca Championships, with the match originally scheduled for 6:30 AM ET on 24 June 2026. The crowd-implied probability sits at 100% YES that Kopriva advances, reflecting a consensus that the Czech player is the clear favourite. This level of certainty is rare in professional tennis, where head-to-head records often show volatility; Kopriva and Buse have met four times previously, with Buse holding a 2-1 advantage overall[1]. Yet, recent form suggests a shift: Kopriva defeated Buse in their last encounter in Madrid in April 2026, winning 7-5, 6-1 in the Round of 16[9], and multiple analysts have now picked Kopriva in three sets for this Mallorca fixture[2].
Traders should monitor official ATP Mallorca score updates and any weather-related delays, as the tournament is currently underway on Centre Court[9]. While the market heavily favours Kopriva, contrarian value may exist if Buse’s recent resilience against top seeds like Stefanos Tsitsipas[10] translates into a tight contest. The settlement window ends 1 July 2026, and any cancellation or tie would reset the outcome to 50-50, a risk that remains minimal given the match has already begun. With Kopriva’s dominant first-round performance and Buse’s struggle to close out matches against higher-ranked opponents, the value spot likely lies in the underdog only if early set scores deviate from the projected 3-set narrative[2].
Methodology
We track Mallorca Championships: Vit Kopriva vs Ignacio Buse 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 Who Will Win 2026, 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.
- 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.
- 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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