Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Fees) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny | 100% |
| Completed Match | 100% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 2 Winner | 100% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 1 Winner | 100% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set Handicap +/-1.5 | 100% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 2 O/U 8.5 | 100% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Game Spread +/-8.5 | 100% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 3 Winner | 100% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set Handicap +/-2.5 | 100% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 3 O/U 8.5 | 100% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 3 O/U 9.5 | 100% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 3 O/U 10.5 | 100% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 4 Winner | 50% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 4 O/U 8.5 | 50% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 4 O/U 9.5 | 50% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 4 O/U 10.5 | 50% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Match O/U 36.5 | 0% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Total Sets: O/U 3.5 | 0% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 1 O/U 8.5 | 0% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Match O/U 38.5 | 0% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Total Sets: O/U 4.5 | 0% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 1 O/U 9.5 | 0% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 2 O/U 9.5 | 0% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Match O/U 40.5 | 0% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 1 O/U 10.5 | 0% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set Handicap +/-1.5 | 0% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set 2 O/U 10.5 | 0% |
| US Open ATP: Daniil Medvedev vs Sebastian Gorzny Set Handicap +/-2.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to us open atp: daniil medvedev vs sebastian gorzny. This market refers to the tennis match between Daniil Medvedev and Sebastian Gorzny in the US Open ATP, originally scheduled for September 2, 2026 at 11:00AM ET. This market will resolve to 'Daniil M…
Methodology
We track US Open ATP: Daniil Medvedev vs Sebastian Gorzny across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
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 Kalshi 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 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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