Dota 2: Iron Wing vs Team Yandex (BO3) - The International Group Stage

Platform comparison

Market context

Iron Wing and Team Yandex will compete in Round 5 of The International Group Stage on 15 August 2026, with the match scheduled for 08:00 ET. The best-of-three fixture determines advancement positioning within the tournament's Swiss-system bracket. Settlement occurs in USDC against the official match result, with the contract resolving to either team's name or 50-50 in the event of cancellation, postponement beyond 29 August, or a tied series.

The 100% implied probability reflects either exceptionally high confidence in match completion or sparse liquidity depth at the current odds. Historical precedent from prior International events shows group-stage matches rarely cancel outright; rescheduling within the 14-day window is the standard remedy for technical failures or unforeseen delays. Comparable Dota 2 esports markets on-chain have typically settled within hours of match conclusion, with USDC payouts executing within one block confirmation. The absence of meaningful counterparty interest at current odds suggests either strong consensus on fixture certainty or insufficient trader participation to establish a tighter spread.

Key catalysts include official tournament schedule confirmations from Valve, team roster changes or stand-in announcements, and venue or broadcast infrastructure updates. Traders should monitor esports news outlets and the official The International social channels for any postponement notices; the August 29 deadline provides a 14-day buffer, but delays beyond that trigger the 50-50 resolution clause. Macro crypto conditions—particularly BTC and ETH spot volatility—may influence overall market participation and funding rates on derivative platforms, though they do not directly affect match settlement mechanics.

Methodology

This page reads Dota 2: Iron Wing vs Team Yandex (BO3) - The International Group Stage on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

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.

Why USDC and not ETH or USDT?

USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.

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%.