Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Set 2 O/U 8.5 | 100% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Set 2 O/U 9.5 | 100% |
| European Open: Botic van de Zandschulp vs Clement Chidekh | 0% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Set 1 Winner | 0% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Set 2 Winner | 0% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Total Sets: O/U 2.5 | 0% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Set 1 O/U 8.5 | 0% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Set 1 O/U 9.5 | 0% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Set 1 O/U 10.5 | 0% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Set 2 O/U 10.5 | 0% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Match O/U 21.5 | 0% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Match O/U 22.5 | 0% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Match O/U 23.5 | 0% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Set Handicap +/-1.5 | 0% |
| European Open: Botic van de Zandschulp vs Clement Chidekh Game Spread +/-3.5 | 0% |
Market context
Market consensus: 100% chance of european open: botic van de zandschulp vs clement chidekh. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Botic van de Zandschulp and Clement Chidekh in the European Open, originally scheduled for October 20, 2026 at 4:00AM ET. This marke…
Methodology
We read European Open: Botic van de Zandschulp vs Clement Chidekh 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.
- 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.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets 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. Robinhood Prediction Markets 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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