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% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Set Handicap +/-1.5 | 100% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Set 2 Winner | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Set 1 Winner | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Set 1 O/U 8.5 | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Total Sets: O/U 2.5 | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Set 2 O/U 8.5 | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Set Handicap +/-1.5 | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Match O/U 21.5 | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Set 1 O/U 9.5 | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Set 2 O/U 9.5 | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Match O/U 22.5 | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Set 1 O/U 10.5 | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Set 2 O/U 10.5 | 0% |
| Livesport Prague Open: Maria Timofeeva vs Sara Bejlek Match O/U 23.5 | 0% |
Market context
Maria Timofeeva against Sara Bejlek at the Livesport Prague Open is the live tennis event behind the market, and the crowd’s 0% YES reading looks far below the pricing that independent previews and odds feeds attached to the match at the time it was scheduled. Tennis Tonic named Bejlek the pick to win and showed opening prices of 1.45 for Bejlek versus 2.74 for Timofeeva, while Tennis Explorer listed average odds of 1.64 and 2.23 respectively, both pointing to Bejlek as the more likely winner.[1][3] A separate preview on Bleacher Nation translated similar moneyline prices into an implied win chance of about 62% for Bejlek and 44% for Timofeeva, which is materially different from a market sitting at zero and suggests the contract may already be pricing in an outcome or settlement issue rather than the on-court matchup itself.[4]
For platform comparison, the same event can read differently depending on whether you are looking at prediction-market probability or betting-market odds. Polymarket-style contracts show a direct implied probability, while Kalshi-style event contracts and exchange books such as Betfair or Smarkets are typically easier to compare through decimal odds and back/lay liquidity, but they also layer on fee treatment and access limits that can change realised returns. In practice, the main catalysts here are simple: whether the match was actually played, whether either player advanced by retirement or walkover, and whether any official rescheduling pushed the contest beyond the market’s seven-day settlement limit. Live tennis listings showed the match on 23 July 2026 at 16:35 local time, so any discrepancy between the scheduled slot and the final official result is the key thing traders need to watch.[2]
Methodology
This page compares Livesport Prague Open: Maria Timofeeva vs Sara Bejlek specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.
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.
- 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. 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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