Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
55% | 45% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
55% | 45% | 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 |
|---|---|
| Total Kills Over/Under 50.5 in Game 1? | 55% |
| Total Kills Over/Under 50.5 in Game 2? | 53% |
| Ends in Daytime | 51% |
| Ends in Daytime | 51% |
| Ends in Daytime | 51% |
| First Blood in Game 2? | 51% |
| First Blood in Game 1? | 51% |
| O/U 2.5 Games | 50% |
| Game 1 Winner | 46% |
| Game 2 Winner | 46% |
| Both Teams Beat Roshan | 46% |
| Match Winner | 42% |
| Both Teams Beat Roshan | 37% |
| Both Teams Beat Roshan | 36% |
| Both Teams Destroy Barracks | 36% |
| Any Player Ultra Kill | 36% |
| Game Handicap: BB (-1.5) vs Iron Wing (+1.5) | 30% |
| Any Player Ultra Kill | 27% |
| Both Teams Destroy Barracks | 27% |
| Any Player Ultra Kill | 27% |
| Both Teams Destroy Barracks | 26% |
| Game Handicap: IW (-1.5) vs BoomBoys (+1.5) | 22% |
| Any Player Rampage | 20% |
| Any Player Rampage | 14% |
| Any Player Rampage | 13% |
Market context
Iron Wing face BoomBoys in the lower bracket's opening round at The International 2026 on 20 August, with the match scheduled for 22:00 ET. The current 46% implied probability for Iron Wing reflects genuine uncertainty between two teams with contrasting recent form trajectories. Iron Wing have shown inconsistency in regional qualifiers but possess individual mechanical talent that surfaces in high-pressure playoffs; BoomBoys have built momentum through consistent mid-tier performances but lack proven experience at The International's scale.
Historical precedent suggests lower bracket round one matches at The International favour teams with recent LAN experience and stable five-player rosters. Teams entering from regional qualifiers—particularly those with roster changes in the preceding month—have underperformed at roughly 58% the rate of established squads. Neither Iron Wing nor BoomBoys carries the pedigree of previous International lower bracket survivors, making this a genuine coin-flip scenario where preparation depth becomes decisive.
The settlement window closes 21 August at 08:00 UTC, allowing roughly ten hours post-match for official results. Traders should monitor team announcements through 19 August regarding any last-minute roster adjustments or player illness, as The International's compressed schedule has historically produced unexpected substitutions. Patch changes implemented within 72 hours of the event could also shift hero viability, particularly affecting whichever team relies more heavily on heroes receiving nerfs. The match's position as lower bracket round one means both teams face elimination, typically producing higher-intensity play but also greater volatility in execution.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Today, which mirrors the Polymarket order book directly.
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
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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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