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
Polymarket is pricing this Hamburg Round of 16 match at 0% YES, so the conditional tokens on Polygon are effectively sitting at the floor despite the contest being on the schedule. On Polymarket’s USDC-settled contract, that means the market is not assigning any current probability to Alejandro Davidovich Fokina advancing against Alex de Minaur, even though the underlying tennis event is still the relevant reference point for resolution.
That kind of zero bid is usually more a reflection of thin or stale trading than of a settled sporting view. De Minaur entered the week as the higher-ranked player and a clear favourite in conventional betting, with some pre-match prices around -165, while Davidovich Fokina had already shown form on clay by beating Corentin Moutet in straight sets. In comparable ATP 250 clay matches, especially when one player is seeded and the other has just come through an efficient opener, Polymarket prices can remain detached from sportsbook-style probabilities until traders update the book or the match state changes.
The key catalysts are simple: whether the fixture is played on Wednesday as listed, whether the ATP/Hamburg order of play changes, and whether either player withdraws or is delayed beyond the seven-day settlement window. ATP Tour reporting said de Minaur’s next opponent would be Davidovich Fokina after both men snapped losing runs in Hamburg, which confirms the bracket path but not the timing. If the match is postponed materially, cancelled, or ends without a completed winner inside the market’s rules, the contract resolves 50-50 rather than to either player.
Methodology
We track Hamburg European Open: Alejandro Davidovich Fokina vs Alex de Minaur 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
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
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.
- 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.
- 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.
- 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.
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