Dota 2: BoomBoys vs Iron Wing (BO3) - The International Group Stage

Platform comparison

Market context

The International is Dota 2's premier annual championship, where regional qualifiers feed into a group stage that determines seeding for the main bracket. BoomBoys and Iron Wing are scheduled to meet in a best-of-three Round 2 fixture on 13 August 2026 at 05:00 ET. In prediction markets, a YES share represents a bet that BoomBoys will win this match; a NO share bets on Iron Wing. The current crowd-implied probability of 100% YES suggests near-total market confidence in a BoomBoys victory, though such extreme probabilities often reflect incomplete information rather than certainty.

Group stage matches at The International rarely face cancellation, but scheduling delays have occurred when regional qualifiers run long or technical issues arise. Historical precedent from prior International tournaments shows that postponements beyond seven days are uncommon; most rescheduled matches occur within 24–48 hours. The settlement window closes on 13 August at 15:00 UTC, giving a six-hour buffer after the scheduled start. If the match does not occur within 168 hours of the original time, the market resolves 50-50, effectively voiding the trade.

Traders should monitor official Dota 2 and The International social channels for roster confirmations, visa delays, or illness affecting either squad. Recent International tournaments have seen minimal disruption to group stage schedules once play begins, though internet infrastructure in the host region can occasionally force brief delays. Confirm both teams' participation status and any last-minute bracket adjustments in the 48 hours before the fixture.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Market UK, which mirrors the Polymarket order book directly.

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 Prediction Market 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%.