Dota 2: OG vs Team Yandex (BO1) - BLAST Slam Group Stage

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Active sub-markets

Market context

OG face Team Yandex in a best-of-one group stage match at the BLAST Slam tournament, scheduled for 27 May at 05:10 ET. The 0% implied probability on Polymarket's USDC-settled contract reflects either extreme confidence in OG's superiority or, more likely, minimal liquidity and trading activity on this particular fixture. With settlement occurring within hours of the scheduled match time, the conditional token mechanics leave little room for late-stage position adjustments—traders committing capital now lock in exposure until the match concludes or the 7-day cancellation threshold passes.

OG's dominance in Dota 2's upper tier provides historical context for pricing this matchup. The organisation has won multiple majors and consistently qualifies for The International, whilst Team Yandex operates at a considerably lower competitive tier within the professional circuit. Previous encounters between established European organisations and emerging regional squads have typically resolved decisively in favour of the established side, though upsets remain possible in single-elimination formats where draft execution and early game momentum carry outsized weight.

Traders should monitor BLAST's official schedule for any postponements or format changes, particularly given the early morning ET start time which occasionally triggers logistical complications. Team composition confirmations and recent scrim results from both squads, typically shared on team social channels in the 48 hours preceding group stage matches, may signal unexpected roster adjustments or preparation gaps. The match's position within BLAST's broader group stage bracket could influence team motivation if seeding implications become apparent before play begins.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi UK, which mirrors the Polymarket order book directly.

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

Is this market available outside the US?

Kalshi UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi UK triggers a quick verification flow that finishes in minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.