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 1 Winner | 100% |
| Match Winner | 77% |
| Game 2 Winner | 63% |
| Total Kills Over/Under 50.5 in Game 2? | 60% |
| Game Handicap: NGX (-1.5) vs Vici Gaming (+1.5) | 57% |
| Ends in Daytime | 50% |
| Both Teams Beat Roshan | 50% |
| Both Teams Destroy Barracks | 50% |
| Any Player Ultra Kill | 50% |
| Any Player Rampage | 50% |
| Ends in Daytime | 50% |
| Both Teams Beat Roshan | 50% |
| Both Teams Destroy Barracks | 50% |
| Any Player Ultra Kill | 50% |
| Any Player Rampage | 50% |
| First Blood in Game 2? | 50% |
| Total Kills Over/Under 55.5 in Game 2? | 50% |
| Total Kills Over/Under 60.5 in Game 2? | 50% |
| Total Kills Over/Under 65.5 in Game 2? | 50% |
| First Blood in Game 1? | 45% |
| O/U 2.5 Games | 43% |
| Total Kills Over/Under 50.5 in Game 1? | 40% |
| Ends in Daytime | 10% |
| Both Teams Beat Roshan | 10% |
| Both Teams Destroy Barracks | 10% |
| Any Player Ultra Kill | 10% |
| Any Player Rampage | 10% |
| Total Kills Over/Under 55.5 in Game 1? | 0% |
| Game Handicap: VG (-1.5) vs Nigma Galaxy (+1.5) | 0% |
| Total Kills Over/Under 60.5 in Game 1? | 0% |
| Total Kills Over/Under 65.5 in Game 1? | 0% |
Market context
Nigma Galaxy and Vici Gaming will meet in Round 4 of The International 2026 group stage on 15 August, with the match scheduled for 01:00 ET. The fixture represents a critical juncture for both rosters in their pursuit of playoff positioning. Vici Gaming enters as the stronger-favoured side according to current crowd pricing at 87% implied probability, reflecting their recent domestic dominance in the Chinese competitive circuit and consistent top-four finishes at major tournaments throughout 2026. Nigma Galaxy, by contrast, has experienced roster instability and mixed results in regional qualifiers, though the European squad retains individual mechanical talent capable of producing upset performances on The International's stage.
Historical precedent suggests that group-stage matches at The International frequently produce closer results than pre-tournament seeding implies. Upsets occur at roughly 15–20% frequency in comparable fixtures when the underdog possesses a stable five-man roster and recent scrim data favours their draft flexibility. Nigma's current probability discount may partially reflect uncertainty around their recent coaching restructuring rather than pure in-game capability gaps.
Traders should monitor official Valve announcements regarding any schedule adjustments or venue changes through 29 August, the rescheduling deadline. Recent reporting from esports.gg indicates both teams completed their final practice blocks without reported absences or equipment issues as of mid-August. The settlement window closes at 11:20 ET on match day, allowing minimal buffer for overtime or technical delays; any postponement beyond 29 August would trigger a 50-50 resolution.
Methodology
Sports-specific comparison page for Dota 2: Nigma Galaxy vs Vici Gaming (BO3) - The International Group Stage. 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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