Dota 2: OG vs Grind Back (BO5) - The International Southeast Asia Closed Qualifier Playoffs

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Market context

The Dota 2 Grand Final between OG and Grind Back is set to begin at 4:00 AM ET today, with the market currently pricing OG as a slight favourite at 51% YES. In the last 24 hours, the series format was confirmed as a Best of 5, shifting expectations from an earlier BO3 assumption and tightening the margin for a comeback victory.

Historical data on OG’s main event performances suggests a team that thrives under pressure, having trailed in all nine of their recent victories, with four involving gold deficits exceeding 10,000[3]. This resilience frames the current 51% probability not as a guarantee, but as a reflection of OG’s proven ability to recover from severe disadvantages, a trait that often defies pre-match odds in high-stakes qualifiers.

Traders should monitor the official start time and any live announcements regarding player availability or technical delays, as Grind Back’s recent path included defeating Carson to secure their spot in the upper bracket[5]. With the settlement window closing at 13:20 UTC on 23 June, the key dependency is the match’s completion; any cancellation or delay beyond seven days would reset the market to a 50-50 outcome, making real-time score updates from GosuGamers critical for position management[8].

Sources: 1 · 2 · 3 · 4 · 5

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 Prediction Today, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

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.

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.

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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.