Dota 2: Level UP vs Yellow Submarine (BO3) - The International Europe Open Qualifier 1 Playoffs

Platform comparison

Active sub-markets

Market context

Level UP face Yellow Submarine in the Quarterfinal 4 match of The International Europe Open Qualifier 1 Playoffs on 10 June, with the winner advancing to the semi-finals. The 61% crowd probability favours Level UP, reflecting their positioning as the marginally stronger side in this regional qualifier bracket. Both teams are competing for one of the limited European slots at The International, making this a high-stakes elimination fixture where roster familiarity and recent form carry substantial weight.

European Dota 2 open qualifiers have historically produced volatile outcomes, particularly at the quarterfinal stage where mid-tier teams often possess similar mechanical skill but diverge sharply on preparation and adaptability. Level UP's implied advantage aligns with typical patterns where teams with more consistent LAN exposure or recent tournament appearances command 55–65% win probabilities in such matchups. However, Yellow Submarine's presence in this round indicates they've already cleared earlier stages, suggesting sufficient depth to exploit preparation gaps or meta-specific drafting advantages.

The settlement window closes at 19:10 UTC on 10 June, providing a six-hour buffer beyond the scheduled 14:00 UTC start time. Traders should monitor official ESL or Valve qualifier announcements for any schedule shifts, roster changes, or technical delays that could trigger the 7-day extension clause. Recent European qualifier broadcasts have experienced minimal cancellations, though connection issues affecting individual players remain a minor risk factor. Team announcements regarding stand-ins or last-minute roster adjustments, typically posted 24–48 hours before matches, would materially shift the probability landscape.

Methodology

We track Dota 2: Level UP vs Yellow Submarine (BO3) - The International Europe Open Qualifier 1 Playoffs on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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?

On Prediction Today, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Prediction Today 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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Prediction Today 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.