Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Match O/U 21.5 | 100% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Set 1 O/U 8.5 | 100% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Set 2 O/U 8.5 | 100% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Set 1 Winner | 100% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Total Sets: O/U 2.5 | 100% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Set 1 O/U 9.5 | 100% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Match O/U 22.5 | 100% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Match O/U 23.5 | 100% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel | 0% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Set 2 Winner | 0% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Set Handicap +/-1.5 | 0% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Set 2 O/U 9.5 | 0% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Set 1 O/U 10.5 | 0% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Set Handicap +/-1.5 | 0% |
| Hamburg European Open, Qualification: Eva Vedder vs Mona Barthel Set 2 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to hamburg european open, qualification: eva vedder vs mona barthel. This market refers to the tennis match between Eva Vedder and Mona Barthel in the Hamburg European Open, Qualification, originally scheduled for July 20, 2026 at 5:30AM ET. This market will resolve t…
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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 Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- 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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