The International 2026: Winner

Platform comparison

Market context

The International 2026 is Dota 2’s season-ending world championship, and the current crowd price of **8% YES** implies the market is treating each of the top contenders as competitive rather than assuming a clear favourite. Public tracking sites show a fairly compressed field: Team Vision has been quoted around 23%, Team Yandex around 19%, while several other teams sit in the high single digits, including Team Falcons, Team Spirit and Aurora Gaming at about 8% each, which leaves a large share of the win probability spread across the rest of the bracket.[1][3]

For comparison across platforms, Polymarket-style markets usually quote **implied probability**, while Betfair and Smarkets tend to display **decimal odds** that need to be converted back into percentages after accounting for margin and fees; that makes direct cross-book comparison noisier than it first appears. Exchange-style venues also differ on access and frictions: some require KYC and have broader regional reach, while fee schedules vary by whether a user is a maker or taker, so a headline “price” can move differently net of costs even when the underlying consensus is similar.[1] Historical TI betting has generally concentrated around a few well-known squads, but model-based previews this year have already pushed multiple teams into a realistic win range, which argues for treating 8% as a live outside-chance rather than a longshot with no path.[2][3]

Traders should watch roster confirmations, final invite and qualifier outcomes, and the published tournament schedule, because TI markets can reprice quickly once the field is locked and the bracket format is known. The official Dota 2 site says TI includes predictions and fantasy features tied to the event cycle, and the market itself will resolve on the team finishing first, with a fallback to “Other” if no winner is determined by 6 September 2026.[7] Current independent previews also note that betting odds for TI usually crystallise closer to the start date, so late roster moves and form in the weeks before August will be the main catalysts.[10][11]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares The International 2026: Winner specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

What about Smarkets as an alternative?

Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.