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

Platform comparison

Market context

BoomBoys and OG will contest a best-of-three Dota 2 match during The International's group stage on 12 August at 10:00PM ET. The market prices BoomBoys at 68% implied probability, reflecting their recent form and perceived structural advantages heading into the tournament. Settlement occurs by 13 August 08:00 UTC, with forfeiture or disqualification triggering a win-condition resolution rather than a 50-50 split.

Historical precedent suggests OG's tournament pedigree—two-time International champions with deep playoff experience—typically commands a floor valuation even when seeding disadvantages them. However, BoomBoys' regional dominance in Southeast Asia and consistent LAN placements have narrowed the gap between these squads considerably. Comparable group-stage matchups from prior Internationals show that 68% confidence in the underdog-by-seeding team often reflects legitimate meta-read advantages or roster synergy rather than pure speculation.

Traders monitoring this match programmatically should track official schedule confirmations from PGL or Valve, as venue delays and technical issues have historically shifted group-stage timings by 12–48 hours. Roster announcements or last-minute stand-in declarations would materially alter the probability surface; both teams finalised their lineups in early August, but monitor esports news feeds for injury disclosures or visa complications. The 7-day cancellation clause means matches rescheduled beyond 19 August would trigger a 50-50 resolution, creating a distinct risk vector for longer-dated conditional orders.

Methodology

This page reviews Dota 2: BoomBoys vs OG (BO3) - The International Group Stage across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Bot UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

UK Frequently Asked Questions

Is this market available outside the US?

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What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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%.