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 |
|---|---|
| Total Kills Over/Under 33.5 in Game 1? | 100% |
| Total Kills Over/Under 30.5 in Game 1? | 100% |
| Total Kills Over/Under 36.5 in Game 1? | 100% |
| Total Kills Over/Under 30.5 in Game 2? | 65% |
| Game Handicap: Navi (-1.5) vs SK Gaming (+1.5) | 62% |
| Odd/Even Total Kills | 51% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| Total Kills Over/Under 33.5 in Game 2? | 50% |
| Total Kills Over/Under 39.5 in Game 1? | 50% |
| First Blood in Game 2? | 48% |
| Game 2 Winner | 39% |
| O/U 2.5 Games | 39% |
| Match Winner | 17% |
| Total Kills Over/Under 45.5 in Game 1? | 1% |
| Game 1 Winner | 0% |
| First Blood in Game 1? | 0% |
| Total Kills Over/Under 36.5 in Game 2? | 0% |
Market context
SK Gaming’s match against Natus Vincere in the LEC regular season opens with the market’s 0% YES reading looking hard to defend on recent comparative form alone. NAVI have had the clearer edge in head-to-head meetings this year, beating SK in March’s Bo3 and also taking the earlier winter meeting, while SK’s broader results in recent rounds have been much less stable. [9][18][19]
The cleaner historical read is that NAVI have been the more dependable side in direct series, which matters in a Bo3 where adaptation between games can outweigh a single-map upset. SK have shown they can spring isolated wins, such as the result over Fnatic noted in recent coverage, but their inconsistency leaves less room for confidence than NAVI’s steadier baseline and better recent match record. [6][3][15]
The main catalysts are simple: the match needs to start and finish on schedule, and any late roster or broadcast change should be watched closely because the settlement only moves to 50-50 if the series is cancelled, left unfinished without a winner, or pushed beyond the seven-day window. Live listing pages currently show the fixture as scheduled for 15:00 UTC on 8 August, so any delay, replacement player, or schedule slip would be the most relevant market-moving development. [1][7][16]
Methodology
Sports-specific comparison page for LoL: SK Gaming vs Natus Vincere (BO3) - LEC Regular Season. 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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