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% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Set 1 O/U 8.5 | 100% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Set 2 O/U 8.5 | 100% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Match O/U 21.5 | 100% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Set 1 O/U 9.5 | 100% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Set Handicap +/-1.5 | 100% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Set 1 O/U 10.5 | 100% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri | 0% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Set 1 Winner | 0% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Set 2 Winner | 0% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Total Sets: O/U 2.5 | 0% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Set Handicap +/-1.5 | 0% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Set 2 O/U 9.5 | 0% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Match O/U 22.5 | 0% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Match O/U 23.5 | 0% |
| Palermo: Alessandra Mazzola vs Dalila Spiteri Set 2 O/U 10.5 | 0% |
Market context
The Palermo Ladies Open Round of 16 clash between Alessandra Mazzola and Dalila Spiteri on clay has already concluded, with Spiteri defeating Mazzola 2–0 in straight sets. This outcome means the prediction market titled “Palermo: Alessandra Mazzola vs Dalila Spiteri” will resolve to Dalila Spiteri, rendering the current 0% YES probability for Mazzola accurate and final. The match, part of the WTA 125 tournament, took place on 20 July 2026, well before the settlement window’s 27 July 2026 expiry.
Historically, markets on completed tennis matches with definitive results show near-zero divergence between final outcomes and crowd-implied probabilities once the event concludes. On platforms like Kalshi or Betfair, such resolved events are typically settled within hours, whereas Polymarket’s blockchain-based settlement may introduce slight latency depending on oracle confirmation. Fee structures also differ: Polymarket charges no trading fees but imposes gas costs, while Smarkets applies a 2% commission on winnings, and Betfair uses a variable margin model.
Traders monitoring this market should note that no further catalysts exist, as the match result is confirmed. However, for comparative analysis, watch how each platform handles post-event settlement timing and whether any discrepancies arise in final pricing due to liquidity or oracle delays. Recent coverage from Tennis Majors confirms Spiteri’s victory, providing a clear reference point for settlement accuracy across competing prediction markets [3].
Methodology
This page compares Palermo: Alessandra Mazzola vs Dalila Spiteri 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 Polymarket Alternative, 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
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- 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. 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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