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 |
|---|---|
| Game Handicap: DIA (-1.5) vs Shark Attack (+1.5) | 100% |
| Both Teams Slay a Dragon | 90% |
| Any Player Quadra Kill | 90% |
| 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 | 10% |
| Both Teams Slay a Dragon | 10% |
| Both Teams Destroy Inhibitors | 10% |
| Any Player Quadra Kill | 10% |
| Any Player Penta Kill | 10% |
| Odd/Even Total Kills | 10% |
| Both Teams Slay Baron Nashor | 10% |
| Both Teams Destroy Inhibitors | 10% |
| Any Player Penta Kill | 10% |
| Odd/Even Total Kills | 10% |
| Game 1 Winner | 0% |
| Game 2 Winner | 0% |
| Match Winner | 0% |
| O/U 2.5 Games | 0% |
Market context
Shark Attack and DIA Ozarox Esports meet in an upper-bracket best-of-three in the TCL Play-Ins, with both sides arriving off opening wins and very little wider data to separate them. Strafe lists each team as 1-0 in its latest recorded match and notes that this is their first meeting in the last six months, while BO3.gg says Shark Attack’s opening win came against Dark Passage and DIA’s against Team Phoenix.[2][5]
That background helps explain why the market’s 0% YES price for Shark Attack looks detached from the public comparison set. On the available match pages, Shark Attack is not being treated as a clear outsider: Strafe shows a 50-50 split, Nextsport prices Shark Attack around 39% and DIA around 61%, and Kalshi has DIA at 74% with Shark Attack at 26%, which still leaves Shark Attack very much live rather than a zero-probability team.[2][11][13] The small sample size matters here, because both teams’ recorded form is built on a single BO3 result.[4][5]
For traders, the main catalysts are roster confirmation, schedule execution, and whether the fixture starts on time, because the market only resolves 50-50 if the match is not played, ends level, or is delayed beyond seven days without a winner.[1] The official-style match listings already show the contest as scheduled for 5 August at 14:30 UTC, so any late change to the bracket, stream status, or team line-ups would be the most relevant update to watch.[1][4][10]
Methodology
Sports-specific comparison page for LoL: Shark Attack vs DIA Ozarox Esports (BO3) - TCL Play-Ins. 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.
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- 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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