Counter-Strike: Grêmio Esports vs ALKA (BO3) - CCT South America Series 4 Group Stage

Platform comparison

Market context

Grêmio Esports and ALKA faced off in a Counter-Strike Best-of-3 group-stage clash at the CCT South America Series 4, originally set for 19 July. The match concluded with ALKA securing a 2–1 victory, overturning pre-match expectations that heavily favoured Grêmio.

Prediction markets currently show a 100% YES implied probability for Grêmio winning, a stark divergence from sportsbook lines that priced ALKA as the clear favourite. Bookmakers in Bulgaria and Russia offered ALKA odds between 1.36 and 1.48, translating to a 65–67% win probability, while Grêmio’s implied chance ranged from 33% to 35% [1][2][4]. Historical data further supports this split: ALKA held a 50% win rate against Grêmio in prior encounters, whereas Grêmio’s win rate against ALKA was recorded at 0% [3]. Such cases highlight how prediction markets can lag behind live outcomes or misprice contracts when settlement rules allow for delayed resolution, especially when the match has already concluded with a definitive winner.

Traders should monitor the official settlement status on the CCT platform and any delay notices beyond the seven-day window, which would trigger a 50–50 resolution. With the match already completed and ALKA declared the winner, the 100% Grêmio probability appears inconsistent with the live result unless the market has not yet updated. Confirming the final settlement timestamp and checking for cancellation or tie clauses is critical before assessing arbitrage opportunities against sportsbook closures [5].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Counter-Strike: Grêmio Esports vs ALKA (BO3) - CCT South America Series 4 Group Stage across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Best Prediction Markets, which mirrors the Polymarket order book at 0% fees.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.

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.