Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) 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 |
|---|---|
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov | 100% |
| Completed Match | 100% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Set 1 O/U 8.5 | 100% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Set 1 Winner | 100% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Set 2 Winner | 100% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Set Handicap +/-1.5 | 100% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Set 1 O/U 9.5 | 100% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Set 1 O/U 10.5 | 100% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Total Sets: O/U 2.5 | 0% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Set 2 O/U 8.5 | 0% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Match O/U 21.5 | 0% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Set 2 O/U 9.5 | 0% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Match O/U 22.5 | 0% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Match O/U 23.5 | 0% |
| Mubadala Citi DC Open, Qualification: Zachary Svajda vs Stefan Kozlov Set 2 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to mubadala citi dc open, qualification: zachary svajda vs stefan kozlov. This market refers to the tennis match between Zachary Svajda and Stefan Kozlov in the Mubadala Citi DC Open, Qualification, originally scheduled for July 25, 2026 at 11:30AM ET. This market will res…
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
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?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi vs Polymarket. 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.
- 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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