Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative) Pick polygram.ink (preferred broker) |
65% | 35% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
65% | 35% | 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 |
|---|---|
| National Bank Open: Rafael Jodar vs Arthur Fils Set 1 O/U 8.5 | 65% |
| National Bank Open: Rafael Jodar vs Arthur Fils Match O/U 21.5 | 57% |
| National Bank Open: Rafael Jodar vs Arthur Fils Set 1 O/U 9.5 | 55% |
| National Bank Open: Rafael Jodar vs Arthur Fils | 54% |
| National Bank Open: Rafael Jodar vs Arthur Fils Set 2 O/U 8.5 | 52% |
| National Bank Open: Rafael Jodar vs Arthur Fils Set 1 Winner | 51% |
| National Bank Open: Rafael Jodar vs Arthur Fils Set 2 Winner | 51% |
| Completed Match | 50% |
| National Bank Open: Rafael Jodar vs Arthur Fils Set 2 O/U 9.5 | 50% |
| National Bank Open: Rafael Jodar vs Arthur Fils Set 2 O/U 10.5 | 50% |
| National Bank Open: Rafael Jodar vs Arthur Fils Match O/U 22.5 | 49% |
| National Bank Open: Rafael Jodar vs Arthur Fils Match O/U 23.5 | 43% |
| National Bank Open: Rafael Jodar vs Arthur Fils Total Sets: O/U 2.5 | 41% |
| National Bank Open: Rafael Jodar vs Arthur Fils Set Handicap +/-1.5 | 33% |
| National Bank Open: Rafael Jodar vs Arthur Fils Set Handicap +/-1.5 | 30% |
| National Bank Open: Rafael Jodar vs Arthur Fils Set 1 O/U 10.5 | 30% |
Market context
Market consensus: 65% chance of national bank open: rafael jodar vs arthur fils. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Rafael Jodar and Arthur Fils in the National Bank Open, originally scheduled for August 11, 2026 at 10:00AM ET. This market will res…
Methodology
We read National Bank Open: Rafael Jodar vs Arthur Fils 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
- 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.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
- 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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