Dota 2: Xtreme Gaming vs Tundra Esports (BO1) - BLAST Slam Group Stage

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Active sub-markets

Market context

Xtreme Gaming face Tundra Esports in a best-of-one group stage fixture at BLAST Slam on 27 May, with the Chinese side favoured at 90 per cent implied probability. The match is scheduled for 12:10 PM ET, with settlement contingent on completion by 3 June; cancellation, ties, or delays beyond that window trigger a 50-50 resolution.

The 90 per cent weighting towards Xtreme Gaming reflects their standing as a top-tier Chinese squad against Tundra's recent inconsistency at tier-one events. Xtreme have maintained roster stability through 2024–2025, whilst Tundra have cycled personnel and struggled to replicate their 2023 form when they reached multiple international finals. In comparable single-elimination group fixtures between established Chinese teams and Swiss-based rosters, the favourites have converted at roughly 75–85 per cent rates when seeding gaps are this pronounced. However, Tundra's unpredictability in best-of-one formats—where draft variance and early game execution matter disproportionately—has historically compressed win probabilities by 10–15 percentage points.

Traders should monitor team announcements regarding stand-ins or last-minute roster changes in the 48 hours before the fixture; BLAST events have occasionally seen coaching adjustments or player absences flagged late. Venue or scheduling disruptions affecting the broader BLAST Slam calendar could also delay the match beyond the 7-day window, triggering the tie resolution. Recent form data from both teams' performances in regional qualifiers and preceding group matches will clarify whether the 90 per cent reflects current competitive state or historical reputation.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Is this market available outside the US?

Sport Prediction 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, Sport Prediction 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.