Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| First Blood in Game 1? | 100% |
| Game Handicap: FLC (-1.5) vs BoomBoys (+1.5) | 55% |
| Ends in Daytime | 50% |
| Both Teams Beat Roshan | 50% |
| Both Teams Destroy Barracks | 50% |
| Any Player Ultra Kill | 50% |
| Any Player Rampage | 50% |
| Ends in Daytime | 50% |
| Both Teams Beat Roshan | 50% |
| Both Teams Destroy Barracks | 50% |
| Any Player Ultra Kill | 50% |
| Any Player Rampage | 50% |
| First Blood in Game 2? | 50% |
| Total Kills Over/Under 55.5 in Game 2? | 50% |
| Game Handicap: BoomBoys (-1.5) vs Team Falcons (+1.5) | 50% |
| Total Kills Over/Under 50.5 in Game 2? | 50% |
| Total Kills Over/Under 60.5 in Game 2? | 50% |
| Game 2 Winner | 46% |
| O/U 2.5 Games | 46% |
| Match Winner | 23% |
| Total Kills Over/Under 45.5 in Game 1? | 10% |
| Ends in Daytime | 1% |
| Both Teams Beat Roshan | 1% |
| Both Teams Destroy Barracks | 1% |
| Any Player Ultra Kill | 1% |
| Any Player Rampage | 1% |
| Total Kills Over/Under 55.5 in Game 1? | 1% |
| Total Kills Over/Under 50.5 in Game 1? | 1% |
| Total Kills Over/Under 60.5 in Game 1? | 1% |
| Game 1 Winner | 0% |
Market context
BoomBoys and Team Falcons are scheduled to compete in a best-of-three Dota 2 match during The International Group Stage on 15 August 2026 at 06:30 ET. The fixture forms part of the tournament's round-five slate, with settlement contingent on match completion by 16:40 UTC on the same date. Current market pricing reflects zero implied probability for a BoomBoys victory, suggesting either strong consensus around Falcons' superiority or material uncertainty about match execution itself.
Historical precedent from esports prediction markets shows that group-stage matches at The International rarely fail to materialise, though scheduling conflicts and technical delays have occasionally forced rescheduling within the fourteen-day window specified here. When matches do proceed, upset victories occur in roughly 15–20% of cases where pre-match odds favour one side heavily, particularly in best-of-three formats where variance permits deeper runs. The 50-50 tie resolution clause carries minimal practical weight in Dota 2, as draws are structurally impossible; this provision primarily hedges against outright cancellation.
Traders should monitor official Valve announcements regarding bracket adjustments, venue logistics, and player availability through late August. Recent esports calendar disruptions have occasionally stemmed from visa delays or equipment transport issues rather than team performance shifts. On-chain funding rates for BTC and ETH spot positions may influence retail participation in secondary markets, though esports prediction liquidity typically remains decoupled from macro crypto flows. Watch for any roster changes or injury disclosures affecting either squad in the forty-eight hours preceding the match, as these remain the primary catalysts for repricing in the final settlement window.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
UK Frequently Asked Questions
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- 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%.
Trade Dota 2: BoomBoys vs Team Falcons (BO3) - The Interna… on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →