Dota 2: Aurora vs GamerLegion (BO3) - The International Group Stage

Platform comparison

Market context

Aurora and GamerLegion are scheduled to contest a best-of-three Dota 2 match on 13 August at 1:00 AM ET as part of The International group stage. The Polymarket contract currently trades at 100% implied probability for match completion, reflecting near-certainty that the fixture will proceed as scheduled and produce a decisive winner within the settlement window. This pricing leaves no room for cancellation, tie outcomes, or delays exceeding seven days—scenarios that would trigger a 50-50 resolution.

Historical precedent from The International's group stage format suggests fixture completion rates exceed 98%, with cancellations or extended delays remaining exceptionally rare. Both Aurora and GamerLegion qualified through legitimate competitive pathways, indicating operational stability and commitment to participation. Previous editions of the tournament have experienced minimal scheduling disruptions during group play, though individual match delays of 24–48 hours occasionally occur without breaching the seven-day threshold. The 100% pricing reflects this track record rather than absolute certainty.

Traders should monitor official The International communications for any roster changes, visa complications, or technical issues affecting either squad in the 72 hours preceding the fixture. Dota 2 patch updates or server stability announcements from Valve could theoretically impact scheduling, though such interventions during active tournament play remain uncommon. The settlement window closes at 12:10 UTC on 13 August, providing a narrow margin for same-day resolution; any delay pushing the match past 20 August would automatically resolve the contract to 50-50 regardless of eventual outcome.

Methodology

We track Dota 2: Aurora vs GamerLegion (BO3) - The International Group Stage across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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 Kalshi UK. 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%.