Dota 2: Execration vs Grind Back (BO3) - The International Southeast Asia Closed Qualifier Playoffs

Platform comparison

Active sub-markets

Market context

Execration are due to face Grind Back in a best-of-three lower bracket semi-final in the The International Southeast Asia Closed Qualifier playoffs, with the market set to resolve on the team that wins the match. On CryptoSlate’s mirror of the market, Grind Back are priced at **82.5%** while Execration sit at **17.5%**, which is notably different from a crowd-implied **100% YES** reading on a platform that shows outcome probabilities differently and can make the same matchup look far more binary than exchange-style decimal odds. CryptoSlate also lists settlement via Dotabuff, whereas Betfair and Smarkets would normally expose the same event as a price ladder in decimals, with the headline probability and the effective take being pulled down by commission and spread rather than shown as a simple yes/no percentage.

The current setup is best read against the qualifier format: in a lower bracket semi-final, there is no room for a series draw, so a finished best-of-three should produce a settled winner unless the fixture is abandoned or materially delayed. Recent match listings on DOTABUFF show both teams already active in the SEA closed qualifier context, which supports the market’s assumption that the contest is part of the live TI qualification path rather than an isolated show match. For platform comparison, Polymarket-style pricing tends to compress everything into a single implied probability, while Betfair and Smarkets usually make traders weigh execution costs, market depth and KYC access; in esports, that matters because short-notice roster or schedule changes can move the true price faster than the displayed headline number.

For catalysts, the main risks are administrative rather than competitive: start-time slippage, bracket re-seeding, a venue or lobby issue, or an official postponement from tournament operators. If the series is delayed beyond the market’s seven-day limit without a winner, it resolves 50-50 under the stated rules, so traders need to watch the organiser feed, Dotabuff’s live match status and any schedule changes from the qualifier page itself.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Dota 2: Execration vs Grind Back (BO3) - The International Southeast Asia Closed Qualifier Playoffs specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to Polymarket Alternative, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). Polymarket Alternative routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Alternative, 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 Alternative 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 does it cost to trade on Polymarket Alternative?

Zero. Polymarket Alternative 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, Polymarket Alternative triggers a quick verification flow that finishes in minutes.