Dota 2: Team Refuser vs Game Master (BO3) - The International China Closed Qualifier Playoffs

Platform comparison

Active sub-markets

Market context

Team Refuser will face Game Master in a lower bracket quarterfinal match at The International China Closed Qualifier Playoffs on 17 June, with the winner advancing in the double-elimination format. The best-of-three fixture is scheduled for 12:00 AM ET, making it an early-morning slot for Western traders but prime evening timing for the Chinese esports audience. The match determines qualification pathway toward the main International event, lending material stakes to both squads.

The 100% implied probability across major platforms reflects either exceptionally one-sided historical matchups or sparse trading liquidity on this specific fixture. Kalshi's binary settlement structure and Polymarket's fractional odds display both converge here toward certainty, though Betfair's decimal odds would render this as roughly 1.01, revealing the extreme confidence gap. Cross-platform comparison shows Smarkets typically maintains tighter spreads on niche esports markets through its commission model, yet even there the probability sits near ceiling. Historical Dota 2 qualifier outcomes rarely sustain 100% certainty unless one team has withdrawn or forfeited pre-match; the settlement window closing 17 June at 10:00 AM ET provides only a ten-hour buffer after the scheduled start time, creating material risk of delayed resolution if technical issues or scheduling conflicts emerge.

Traders should monitor official International qualifier communications and both teams' roster confirmations through 16 June. Recent ESL and PGL qualifier broadcasts have experienced 2–4 hour delays due to technical setup, and the China region's regulatory environment occasionally affects streaming schedules. Any postponement announcement would immediately pressure the 100% probability, particularly on platforms with seven-day cancellation thresholds like Kalshi, where delayed matches risk 50-50 settlement rather than decisive outcomes.

Methodology

We read Dota 2: Team Refuser vs Game Master (BO3) - The International China Closed Qualifier Playoffs from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Where can I trade this market with the lowest fees?

On Kalshi Alternative 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.

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.

What does it cost to trade on Kalshi Alternative UK?

Zero. Kalshi Alternative UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi Alternative UK triggers a quick verification flow that finishes in minutes.