Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| National Bank Open: Terence Atmane vs Jakub Mensik Set 1 O/U 8.5 | 100% |
| National Bank Open: Terence Atmane vs Jakub Mensik Set 2 O/U 8.5 | 100% |
| National Bank Open: Terence Atmane vs Jakub Mensik Match O/U 21.5 | 100% |
| National Bank Open: Terence Atmane vs Jakub Mensik Set 1 O/U 9.5 | 100% |
| National Bank Open: Terence Atmane vs Jakub Mensik Set 2 O/U 9.5 | 100% |
| National Bank Open: Terence Atmane vs Jakub Mensik Set Handicap +/-1.5 | 100% |
| National Bank Open: Terence Atmane vs Jakub Mensik Set 1 O/U 10.5 | 100% |
| National Bank Open: Terence Atmane vs Jakub Mensik | 0% |
| National Bank Open: Terence Atmane vs Jakub Mensik Set 1 Winner | 0% |
| National Bank Open: Terence Atmane vs Jakub Mensik Set 2 Winner | 0% |
| National Bank Open: Terence Atmane vs Jakub Mensik Total Sets: O/U 2.5 | 0% |
| National Bank Open: Terence Atmane vs Jakub Mensik Set Handicap +/-1.5 | 0% |
| National Bank Open: Terence Atmane vs Jakub Mensik Match O/U 22.5 | 0% |
| National Bank Open: Terence Atmane vs Jakub Mensik Match O/U 23.5 | 0% |
| National Bank Open: Terence Atmane vs Jakub Mensik Set 2 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to national bank open: terence atmane vs jakub mensik. This market refers to the tennis match between Terence Atmane and Jakub Mensik in the National Bank Open, originally scheduled for August 7, 2026 at 10:00AM ET. This market will resolve to 'Terence A…
Methodology
We read National Bank Open: Terence Atmane vs Jakub Mensik from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
FAQ
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Polymarket Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Polymarket Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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