Dota 2: Grind Back vs Carstensz (BO3) - The International Southeast Asia Closed Qualifier Playoffs

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Active sub-markets

Market context

Polymarket prices this contract at **100% YES**, which means the market is treating a Grind Back win as fully reflected in the current order book. In practical terms, traders are holding USDC on Polygon against conditional tokens that settle to the match outcome, so the only thing that matters is whether Grind Back take the BO3 within the settlement rules; if the series is not completed in time or is abandoned in a qualifying way, the market can still resolve to 50-50 rather than a side outright.

The cleanest historical read is the recent head-to-head: Carstensz beat Grind Back 2-1 in the SEA closed-qualifier context on 4 June, and another matchup between the two in the TI Southeast Asia pathway is listed live on 21 June. That makes this less a case of two teams with no prior separation and more a repeat pairing where recent form has already been tested. Comparable qualifier markets often stay pinned once the bracket is confirmed and the favourite has either already won the match-up or is expected to advance on roster strength; here, the 100% print suggests the contract has effectively collapsed into certainty from the market’s point of view, even though the on-chain settlement still depends on the official result.

The main catalysts are procedural rather than narrative: confirmed start time, whether the lower-bracket fixture actually begins, and whether any schedule slip pushes it beyond the seven-day fail-safe. Traders should watch for bracket updates from the organiser, live-score listings, and any roster or admin notes that could affect whether the BO3 is completed. Because the market resolves directly on the reported match outcome, a late delay, replay, or no-contest scenario is more relevant here than team talk around momentum.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Dota 2: Grind Back vs Carstensz (BO3) - The International Southeast Asia Closed Qualifier 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 Polymarket Scam?, 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?

Polymarket Scam? 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.

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.

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.

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.