Dota 2: Iron Wing vs Team Spirit (BO3) - The International Playoffs

Platform comparison

Market context

Iron Wing face Team Spirit in an Upper bracket quarterfinal best-of-three at The International 2026, with the match scheduled for 19 August at 10:00 PM ET. The Polymarket contract currently prices Iron Wing's victory at 53%, reflecting marginal confidence in their ability to overcome a Team Spirit side that has consistently ranked amongst the world's elite Dota 2 competitors. Settlement occurs by 20 August at 08:00 UTC, with a 14-day postponement window extending to 2 September should scheduling conflicts arise.

Team Spirit's track record at The International tournaments provides the baseline for interpreting current odds. The Russian organisation reached the grand final at TI10 and TI11, establishing themselves as consistent deep-run contenders with a proven ability to execute under playoff pressure. Iron Wing, by contrast, represents a less predictable quantity at this stage of the competition. The 53% YES price suggests the market views this as genuinely competitive rather than a Spirit coronation, though historical precedent slightly favours the more established franchise.

Traders should monitor roster confirmations and any last-minute substitutions announced before the 19 August fixture, as Dota 2's complex meta shifts can disproportionately favour teams with stronger preparation time. Team Spirit's recent performance at regional qualifiers and their drafting patterns against Iron Wing's known strengths will shape pre-match sentiment. Any technical delays or scheduling announcements from Valve will trigger immediate repricing on Polygon, where USDC settlement tokens reflect real-time market conviction.

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 PolyGram, which mirrors the Polymarket order book directly.

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.

FAQ

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 PolyGram. 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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.