The International 2026: Winner

Platform comparison

Market context

The International 2026 will take place in August, with Valve's premier Dota 2 championship determining the year's world champion across a ten-day tournament window. The 8% implied probability on this binary contract reflects substantial uncertainty about which of the invited or qualified teams will claim the trophy and associated prize pool, currently undisclosed but historically ranging from $20m to $40m USD.

Historical precedent suggests that favourites at The International rarely sustain single-digit odds. Between 2015 and 2023, the eventual champion carried pre-tournament odds ranging from 12% to 25% across major sportsbooks, with only one winner (OG in 2018) emerging from a field where no team exceeded 20% implied probability. The 2023 edition saw Team Spirit enter as the clear favourite at roughly 18%, whilst the actual winner, Team Liquid, had been priced around 8–10% beforehand. This pattern indicates that current 8% pricing sits at the lower end of historical champion probability distributions, suggesting either exceptional depth in the field or significant uncertainty about team composition and form heading into the tournament.

Key variables for traders include roster announcements and qualifying results, typically finalised between May and July 2026. Recent roster changes across top teams—including departures from established organisations—will reshape competitive dynamics substantially. The timing of team bootcamps, scrim results, and patch changes in the months preceding August will influence analyst consensus and sportsbook adjustments. Monitoring Dotabuff's official tournament tracking and major esports news outlets like Liquipedia and ESIC will provide early signals of shifting probabilities as the tournament approaches.

Methodology

We track The International 2026: Winner across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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 Kalshi vs Polymarket. 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'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.