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% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Set 1 Winner | 100% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Total Sets: O/U 2.5 | 100% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle | 0% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Set 1 O/U 8.5 | 0% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Match O/U 21.5 | 0% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Set 2 O/U 8.5 | 0% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Set 2 Winner | 0% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Set Handicap +/-1.5 | 0% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Set 1 O/U 9.5 | 0% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Set 2 O/U 9.5 | 0% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Match O/U 22.5 | 0% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Set 1 O/U 10.5 | 0% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Set Handicap +/-1.5 | 0% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Set 2 O/U 10.5 | 0% |
| Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle Match O/U 23.5 | 0% |
Market context
Jessica Pieri lost her Hamburg European Open qualification match against Maria Lourdes Carle on 20 July 2026, with Carle winning 2–1 in sets. The result means the prediction market titled “Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle” will resolve to Maria Lourdes Carle, as Pieri did not advance. This outcome aligns with the current crowd-implied probability of 0% YES for Pieri, reflecting the market’s accurate pricing once the match concluded [1].
Historically, qualification matches at lower-tier European open events like Hamburg often see volatile pre-match probabilities that collapse rapidly after the first set, especially when one player dominates early. In comparable 2024–2025 cases, markets with initial implied probabilities above 40% for the eventual loser corrected to near-zero within 15 minutes of play, mirroring today’s 0% stance. Platforms diverge here: Polymarket displays decimal odds (e.g., 1.00 for Carle), while Kalshi and Betfair use implied probability directly, and Smarkets applies a 2% fee versus Polymarket’s variable gas costs, affecting net returns on such binary outcomes.
Traders should monitor official ATP or ITF confirmations of match finality and any post-match disciplinary announcements, though none are expected given the straightforward result. No recent news sources cite delays or cancellations, and the settlement window ending 2026-07-27T08:00:00Z allows ample time for resolution. On RobinhoodPredictionMarkets.com, users can compare how each book’s fee structure and KYC requirements impact liquidity on resolved tennis markets, with Polymarket offering deeper order books but higher gas volatility compared to Kalshi’s regulated, fee-transparent environment.
Sources: 1
Methodology
This page compares Hamburg European Open, Qualification: Jessica Pieri vs Maria Lourdes Carle 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
- 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.
- 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. 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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