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

Platform comparison

Market context

Infinite versus 100 Thieves in a best-of-three at the Esports World Cup Open Qualifier Play-Ins is trading with a crowd-implied **28%** chance on Infinite, so the market is effectively pricing 100 Thieves as the clear favourite. Live market screens show the same shape, with 100 Thieves shorter than Infinite across prediction venues, while the event schedule lists the match for **09:00** and places it in the Round of 32/play-in stage.[2][6][7][9]

For context, 100 Thieves enter with the more established CS2 profile: Liquipedia shows them active in July qualifier play and Bo3.gg’s team page tracks recent results, whereas Infinite’s public match history is thinner and more volatile, which usually supports the favourite in a BO3. That said, a 28% underdog price is not negligible in a qualifier environment, where shortened preparation, veto variance and uneven opposition can make an upset more plausible than the headline ranking gap suggests.[3][17][8]

The main catalysts are simple: whether the fixture stays on schedule, whether the format remains a full BO3, and whether either side posts late roster or admin updates before start time. EsportNow and Bo3.gg both currently list the match as upcoming, and the broader qualifier is running across 7–9 August with ranking points and a route into the main event at stake, so any schedule slippage or bracket reshuffle would matter for settlement risk as well as price.[2][8][5]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Counter-Strike: Infinite vs 100 Thieves (BO3) - Esports World Cup Open Qualifier Play-Ins 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 Who Will Win, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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 Who Will Win. 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%.