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

How the sports market is pricing "Dota 2: BoomBoys vs OG (BO3) - The International Group Stage" right now — live quote plus platform comparison.

Match Winner 76% Game 1 Winner 72% Game 2 Winner 67% Total Kills Over/Under 50.5 in Game 2? 63% Volume: $1.3M Liquidity: $405K Closes: 13 Aug 2026
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Dota 2: BoomBoys vs OG (BO3) - The International Group Stage

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Sport Prediction) Pick
polygram.ink (preferred broker)
76% 24% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Live odds →
Polymarket (direct)
polymarket.com
76% 24% 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.

OutcomeProbability
Match Winner76%
Game 1 Winner72%
Game 2 Winner67%
Total Kills Over/Under 50.5 in Game 2?63%
Total Kills Over/Under 50.5 in Game 1?63%
Ends in Daytime50%
Both Teams Beat Roshan50%
Both Teams Destroy Barracks50%
Any Player Ultra Kill50%
Any Player Rampage50%
Ends in Daytime50%
Both Teams Beat Roshan50%
Both Teams Destroy Barracks50%
Any Player Ultra Kill50%
Any Player Rampage50%
Ends in Daytime50%
Both Teams Beat Roshan50%
Both Teams Destroy Barracks50%
Any Player Ultra Kill50%
Any Player Rampage50%
First Blood in Game 2?50%
First Blood in Game 1?50%
O/U 2.5 Games40%
Total Kills Over/Under 55.5 in Game 1?38%
Game Handicap: BoomBoys (-1.5) vs OG (+1.5)29%

Market context

BoomBoys and OG will meet in a best-of-three opening fixture at The International 2024 group stage on 12 August at 10:00 PM ET. The 68% crowd probability favours OG, reflecting their status as a two-time International champion with a more established recent competitive record. BoomBoys, the Southeast Asian representatives, qualified through regional qualifiers and enter as relative underdogs despite strong domestic performances throughout 2024.

OG's recent form has been mixed heading into the tournament. The organisation restructured its roster following disappointing placements at the Dota Pro Circuit majors earlier in the year, with new coaching staff brought in to refine mid-game execution. BoomBoys conversely demonstrated consistency in their regional circuit, though their international LAN experience remains limited compared to OG's veteran core. Historical precedent suggests established International competitors with institutional knowledge of the event format—drafting patterns, stage timing, crowd dynamics—maintain an edge in opening matches, particularly in best-of-three formats where preparation depth matters.

Traders should monitor official team announcements regarding final roster confirmations and any last-minute coaching adjustments through to the settlement window closure on 13 August. Schedule delays remain possible given The International's complex logistics; any postponement beyond seven days without resolution triggers a 50-50 split. Watch for pre-match analysis from established Dota 2 correspondents at esports outlets covering team preparation and scrim results in the days immediately preceding the fixture, as these often signal tactical readiness and confidence levels not yet reflected in betting markets.

Methodology

Sports-specific comparison page for Dota 2: BoomBoys vs OG (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.
Can I bet on individual matches?
Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
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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