Counter-Strike: Infinite vs 100 Thieves (BO3) - Esports World Cup Open Qualifier Play-Ins

Platform comparison

Market context

Polymarket is pricing **Infinite vs 100 Thieves** at about **28% YES** on the current contract, with the market settled in USDC on Polygon through conditional tokens and due by the 15:00 UTC settlement window if the match outcome is confirmed. The listed price sits well below parity, so the contract is reading as a fairly strong lean to **100 Thieves** winning the best-of-three rather than to Infinite.[6][10]

That pricing is consistent with the broader market and comparable pre-match signals. Polymarket’s own esports page shows the same fixture around the low-20s on one side and high-70s on the other, while other books and prediction platforms list 100 Thieves as a clear favourite, including odds of 1.17 for 100 Thieves versus 4.40 for Infinite and user voting that heavily tilts to 100 Thieves.[6][10][13] The match is part of the Esports World Cup Open Qualifier Play-Ins Round of 32, and the event itself is a short, same-day CS2 qualifier with 32 teams and BO3 series, which tends to compress information into a small number of live updates and roster checks.[1][7]

For traders, the main catalysts are straightforward: whether the match starts on schedule, whether either side fields a changed lineup, and whether the bracket advances normally through the day. The published schedule places Infinite and 100 Thieves at 09:00 on 9 August, but multiple tournament listings and live result pages are the quickest way to catch any delay, cancellation, or walkover risk that could push the market towards the 50-50 settlement rule rather than a clean winner.[1][5][8] There is also immediate dependency risk from the broader qualifier slate, because several BO3s are running at the same time and any staging issue at the event can affect timing across the round.[1][5]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Counter-Strike: Infinite vs 100 Thieves (BO3) - Esports World Cup Open Qualifier Play-Ins across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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.

UK Frequently Asked Questions

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 PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.