Dota 2: InterActive Philippines vs Mentality Monster (BO3) - The International Southeast Asia Closed Qualifier Playoffs

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Market context

InterActive Philippines are due to meet Mentality Monster in a best-of-three lower-bracket playoff match in the Southeast Asia closed qualifier for The International, with the result settling entirely on which side wins the series. The market’s 0% crowd-implied probability is at odds with the pre-match read from esports trackers: Strafe showed InterActive Philippines as the clear public favourite, while Kalshi’s parallel Dota 2 market had priced InterActive Philippines at 35% at the time of the listing.[1][2]

That gap matters because lower-bracket BO3s often hinge on map selection and one momentum swing rather than season-long reputation. InterActive Philippines had won only two of their previous five matches in Strafe’s snapshot, but they were still ranked higher than Mentality Monster there, which helps explain why some bettors would treat a zero price as an outlier rather than a statement of certainty.[1] In comparable esports markets, very low probabilities tend to reflect stale order books or thin liquidity more than a true no-chance assessment, especially when the match is already near scheduled play and settlement depends on an actual completed series.[2]

The immediate catalysts are operational rather than macro: whether the match starts on time, whether the organiser confirms the bracket remains intact, and whether any postponement pushes it beyond the seven-day settlement window described in the market rules.[2][3] On-chain, the contract should ultimately settle in USDC once the winner is officially recorded, so traders are watching for last-minute result feeds from sources such as DLTv, Gamers World, and live-score services rather than for broader crypto moves.[2] BTC and ETH spot action only becomes relevant if it affects venue funding or broader risk appetite, but for this market the decisive inputs are the tournament schedule and the confirmed final scoreline.[2][3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reads Dota 2: InterActive Philippines vs Mentality Monster (BO3) - The International Southeast Asia Closed Qualifier Playoffs on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed for comparison. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

Where can I trade this market with the lowest fees?

On BTC Prediction, 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?

BTC 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.

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.