Dota 2: Team Liquid vs Vici Gaming (BO3) - The International Group Stage

Platform comparison

Market context

Team Liquid face Vici Gaming in a best-of-three opening match at The International, Dota 2's premier annual championship, scheduled for 13 August at 1:00 AM ET. The current market pricing at 100% implies certainty of match completion, though settlement hinges on whether the fixture actually takes place within the seven-day window and produces a decisive winner.

Historical precedent suggests caution with such extreme probabilities in esports group stages. The International's opening rounds have experienced fixture delays due to technical issues, player illness, and scheduling conflicts, though outright cancellations remain rare. In 2022 and 2023, several matches were postponed but ultimately resolved within the settlement window. Team Liquid qualified directly for the main event, whilst Vici Gaming advanced through regional qualifiers, both securing their spots weeks prior to the tournament.

The immediate catalyst is tournament infrastructure confirmation. Valve's official schedule and venue readiness typically receive final confirmation 48–72 hours before the event window opens. Traders should monitor The International's official channels and team social media for any last-minute roster changes, visa complications, or technical setup issues that could delay proceedings. Given the tournament's significance and the teams' preparation investment, fixture abandonment remains unlikely, but the 100% pricing leaves no margin for the documented delays that have affected previous International group stages.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

UK Frequently Asked Questions

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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%.