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 3 Winner | 100% |
| Game 4 Winner | 100% |
| Game 5 Winner | 100% |
| Match Winner | 100% |
| O/U 4.5 Games | 100% |
| O/U 5.5 Games | 100% |
| O/U 6.5 Games | 100% |
| Game 6 Winner | 10% |
| Game 1 Winner | 0% |
| Game 2 Winner | 0% |
Market context
OpTic Gaming and 100 Thieves meet in the Esports World Cup playoffs after both reached the semi-finals with clean 4-0 quarter-final sweeps on Saturday, with OpTic beating FaZe Clan and 100 Thieves dispatching Movistar KOI. That shape matters for the market because the most recent direct meeting went the other way: 100 Thieves edged OpTic 3-2 in their Group B match on 6 August, so the head-to-head record points to a tight series rather than a one-sided price.[1][12]
Comparable cases from this event suggest the crowd-implied 0% YES is hard to square with the form line. OpTic have already shown they can dominate elite opposition in this bracket, while 100 Thieves have combined consistency with the psychological edge of winning the first meeting between the teams. Pre-tournament previews also rated both sides among the main championship contenders, with OpTic and 100 Thieves priced close together in outright betting rather than separated as a mismatch.[4][6]
The main catalysts for traders are simple: whether both line-ups are confirmed unchanged, and whether the semi-final starts on schedule within the Sunday finals block. The match was listed as the second semi-final on the closing day of the tournament, so any late schedule change, technical delay, or roster announcement would matter more here than in an earlier round.[1][8] If the series begins, the best guide remains recent map control and momentum from the quarter-finals, because both teams have already shown they can convert strong starts into quick playoff wins.[1][5]
Methodology
Sports-specific comparison page for Call of Duty: OpTic Gaming vs 100 Thieves (BO7) - Esports World Cup Playoffs. 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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