Dota 2: Iron Wing vs GamerLegion (BO3) - The International Elimination Round

Platform comparison

Market context

Iron Wing and GamerLegion will compete in a best-of-three elimination match at The International 2026, Dota 2's premier annual championship. The fixture is scheduled for 16 August 2026 at 01:00 ET. Polymarket currently prices Iron Wing's victory at 75% (0.75 USDC per conditional token on Polygon), implying roughly even odds for a GamerLegion upset. The settlement window closes at 11:00 ET on the same day, allowing roughly ten hours post-match for resolution. Postponement rules permit rescheduling through 30 August 2026 at 23:59 ET without triggering a 50-50 split.

Historical International elimination rounds show significant variance in seeding strength. Teams entering lower brackets from group stages have mounted deep runs—notably OG's 2019 lower-bracket championship and Team Spirit's 2021 run—though favourites typically advance. GamerLegion's recent form and roster stability relative to Iron Wing's tournament pedigree will determine whether the 75% probability reflects genuine skill differential or market overweighting of name recognition. Comparable Dota 2 matchups at majors between established organisations and rising challengers have settled near 65–70% for the established side, suggesting modest overpricing of Iron Wing here.

Traders should monitor official The International schedule confirmations and any last-minute roster changes or stand-in announcements, which occasionally surface 24–48 hours before matches. Patch updates deployed before the tournament can shift hero viability and team preparation timelines. Recent Valve communications regarding The International 2026 format and bracket structure remain the primary information source; team social media accounts typically confirm final lineups shortly before play begins.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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.

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.

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.