Dota 2: Aurora vs GamerLegion (BO3) - The International Group Stage

Platform comparison

Market context

Aurora and GamerLegion are scheduled to contest a best-of-three Dota 2 match in The International's group stage on 13 August at 1:00 AM ET. The current crowd-implied probability sits at 100% YES, indicating near-certainty that the match will occur and produce a decisive result. This extreme confidence contrasts sharply with typical esports prediction markets, where even heavily favoured outcomes rarely reach such saturation unless external factors have substantially narrowed uncertainty.

Historical precedent suggests that International group-stage matches rarely face cancellation or indefinite postponement once the tournament begins. Valve's infrastructure and scheduling protocols have proven robust across recent editions, with matches typically proceeding as scheduled barring exceptional circumstances—equipment failure, player illness, or force majeure events remain statistically rare. The 7-day grace period built into this market's resolution criteria provides substantial buffer against minor delays, further reducing the probability of a 50-50 tie resolution.

Traders should monitor official International communications regarding roster confirmations and venue status in the 48 hours preceding the fixture. Recent tournament announcements from Valve have confirmed participation from both organisations, though last-minute roster changes or visa complications have occasionally affected International lineups. The settlement window closes 13 August at 12:10 UTC, allowing roughly 11 hours post-match for result confirmation. Any divergence between the 100% crowd probability and traditional sportsbook lines would signal material information asymmetry worth investigating, though major betting platforms typically align closely on group-stage match occurrence once tournaments are underway.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Best Prediction Markets. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.