Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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.
| Outcome | Probability |
|---|---|
| Game 1 Winner | 100% |
| Total Kills Over/Under 55.5 in Game 1? | 100% |
| Both Teams Beat Roshan | 100% |
| Both Teams Destroy Barracks | 100% |
| Total Kills Over/Under 60.5 in Game 1? | 100% |
| Total Kills Over/Under 50.5 in Game 1? | 100% |
| Total Kills Over/Under 65.5 in Game 1? | 100% |
| Total Kills Over/Under 70.5 in Game 1? | 100% |
| Total Kills Over/Under 75.5 in Game 1? | 100% |
| Total Kills Over/Under 80.5 in Game 1? | 100% |
| Match Winner | 64% |
| O/U 2.5 Games | 61% |
| Total Kills Over/Under 55.5 in Game 2? | 51% |
| First Blood in Game 2? | 50% |
| Total Kills Over/Under 55.5 in Game 3? | 50% |
| 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% |
| Game Handicap: Iron Wing (-1.5) vs Team Falcons (+1.5) | 50% |
| Game 2 Winner | 40% |
| First Blood in Game 3? | 33% |
| First Blood in Game 1? | 1% |
| Ends in Daytime | 1% |
| Any Player Ultra Kill | 1% |
| Any Player Rampage | 1% |
| Total Kills Over/Under 85.5 in Game 1? | 1% |
| Game Handicap: FLC (-1.5) vs Iron Wing (+1.5) | 0% |
Market context
Based on real-money crowd forecasting, dota 2: iron wing vs team falcons (bo3) - the international group stage stands at 100% likelihood according to current market consensus. This market refers to the Dota 2 Round 3 match between Iron Wing and Team Falcons in the The International Group Stage, initially scheduled for August 14, 2026 at 1:00 AM ET. This…
Methodology
We track Dota 2: Iron Wing vs Team Falcons (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
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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%.
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