Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
79% | 21% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
79% | 21% | 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 |
|---|---|
| Match Winner | 79% |
| Game 1 Winner | 70% |
| Game 2 Winner | 70% |
| Both Teams Beat Roshan | 57% |
| First Blood in Game 1? | 55% |
| Any Player Ultra Kill | 53% |
| Ends in Daytime | 52% |
| Ends in Daytime | 52% |
| Both Teams Destroy Barracks | 52% |
| First Blood in Game 2? | 52% |
| Ends in Daytime | 51% |
| Any Player Rampage | 51% |
| Game Handicap: TS (-1.5) vs Team Resilience (+1.5) | 50% |
| Total Kills Over/Under 55.5 in Game 2? | 48% |
| Total Kills Over/Under 55.5 in Game 1? | 47% |
| O/U 2.5 Games | 42% |
| Both Teams Beat Roshan | 35% |
| Both Teams Beat Roshan | 35% |
| Any Player Ultra Kill | 28% |
| Any Player Ultra Kill | 28% |
| Both Teams Destroy Barracks | 27% |
| Both Teams Destroy Barracks | 27% |
| Any Player Rampage | 26% |
| Any Player Rampage | 26% |
Market context
Team Spirit and Team Resilience are scheduled to compete in a best-of-three Dota 2 match during The International's elimination bracket on 16 August 2026. The contest begins at 01:00 ET, with settlement occurring at 11:00 UTC the same day. Current crowd pricing reflects 70% confidence in a Team Spirit victory, suggesting the market views them as the stronger outfit heading into this knockout fixture.
Historical precedent from prior International tournaments shows that seeding and regional qualification strength typically correlate with elimination-round performance, though upsets remain common when fatigue or meta shifts favour underdogs. Team Spirit's track record at recent majors and their performance through group stages will be the primary reference point for assessing whether the 70% probability accurately reflects their matchup advantage. Comparable elimination encounters at The International 2023 and 2024 saw favourites win roughly 65–75% of the time, placing current odds within historical norms but not extreme.
Traders should monitor roster confirmations and any last-minute substitutions announced before the 16 August deadline, as Dota 2 teams occasionally field stand-ins due to visa or health issues. Schedule adherence matters: if the match is postponed beyond 30 August 23:59 ET, the market resolves to 50-50 regardless of eventual outcome. On-chain settlement in USDC will execute once the official result is confirmed by The International's broadcast authority, typically within two hours of match conclusion. Watch for any announcements from ESL or Valve regarding venue changes or technical delays that could trigger the rescheduling clause.
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 does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- 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: Team Spirit vs Team Resilience (BO3) - The I… on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →