Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Total Sets: O/U 2.5 | 100% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Match O/U 21.5 | 100% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Set 1 Winner | 100% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Set 1 O/U 8.5 | 100% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Set 2 O/U 8.5 | 100% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Match O/U 22.5 | 100% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Set 1 O/U 9.5 | 100% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Set 2 O/U 9.5 | 100% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Match O/U 23.5 | 100% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Set 1 O/U 10.5 | 100% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Set 2 O/U 10.5 | 100% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee | 0% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Set 2 Winner | 0% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Set Handicap +/-1.5 | 0% |
| Plovdiv 2: Samuele Pieri vs Gerard Campana Lee Set Handicap +/-1.5 | 0% |
Market context
Samuele Pieri and Gerard Campana Lee are due to meet in the Plovdiv 2 Challenger on clay, with the market centred on whether Pieri advances. The published pre-match framing points to a fairly even contest on the exchange, while third-party price guides have leaned towards Pieri, reflecting his higher ranking and a prior head-to-head win on clay in Zadar earlier this year.[1][5][9][13]
That historical backdrop is the main reason the crowd-implied 0% YES looks detached from the tennis itself. Pieri is listed at ATP 386, compared with Campana Lee around ATP 585-604 depending on the feed, and their only previous meeting went to Pieri in three sets on clay, 6-4, 5-7, 6-4.[1][4][9][12] Recent form is mixed rather than dominant: one feed shows Pieri’s last ten as WLWWWLLLLW, while Campana Lee’s run is listed as WWWWWWLWWL, with both players arriving after straight-sets or three-set wins in the earlier rounds.[3][12]
For traders, the key catalysts are the live match status, any schedule drift, and whether either player is forced into a quick turnaround from court allocation or weather delays. The match is scheduled for Court 2 in Plovdiv and appears in Challenger round-of-16 listings, but the market only resolves 50-50 if the match is cancelled, tied, or delayed beyond seven days without a winner.[1][2][3][17] If the event begins and then stops, the settlement still depends on whether one player is formally awarded the advance, so confirmation from the tournament draw or live scoring feed matters more than pre-match odds.[17][18]
Methodology
Sports-specific comparison page for Plovdiv 2: Samuele Pieri vs Gerard Campana Lee. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
UK Frequently Asked Questions
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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