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

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Market context

InterActive Philippines and Mentality Monster are due to meet in a best-of-three lower-bracket playoff match in the SEA closed qualifier for The International, a format that makes game count and draft adaptation more important than a single-map edge. For a programmatic trader, the live input to watch is not just the series page but the bracket state, because a lower-bracket elimination match typically creates sharper incentives for line movement when one side is one loss from exiting the qualifier[1][3].

A 0% crowd-implied probability for InterActive Philippines is best read as a thin-liquidity signal rather than a literal statement that the team cannot win. In comparable Dota 2 market data, InterActive Philippines has been tracked as a mid-tier side with a sub-50% long-run win rate, while recent form pages show both teams winning two of their last five matches around mid-June, which supports a wider uncertainty band than an extreme price suggests[5][4]. In practice, copy-trading or conditional-order setups should treat 0% as a potential stale-book artefact and wait for either official line-up confirmation or a sharper pre-match repricing before committing size[5][4].

The main catalysts are operational: final match start time, whether the playoff is played on the scheduled date, and any tournament-page or organiser update that confirms postponement, remake, or bracket adjustment. The market description allows a void if the match is not played or is delayed beyond seven days, so automated strategies should monitor the event status feed rather than only score updates. The market was originally scheduled for 21 June at 1:00 AM EDT, and secondary listings already carry that fixture reference, which is useful for reconciliation if the organiser changes the timetable[1][2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Dota 2: InterActive Philippines vs Mentality Monster (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 Review UK, 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 Review UK 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.