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

Platform comparison

Market context

Infinite face 100 Thieves in a best-of-three round-of-32 match in the Esports World Cup Open Qualifier Play-Ins, and the market is effectively pricing a live underdog: the crowd-implied probability is 28% YES for Infinite, versus roughly 72% for 100 Thieves. Live market screens on Polymarket and Bitget both show 100 Thieves favoured, but their presentation differs: Polymarket quotes a 1.32x price on 100 Thieves in one comparable EWC market view, while Bitget shows direct win probabilities rather than exchange-style prices[6][10]. Betsafe lists 100 Thieves at 1.17 decimal odds and Infinite at 4.40, a gap that broadly matches the market’s view of a heavy favourite, though fee structures and KYC access differ materially across venues[13].

Historically, this kind of price is easier to read by comparing it with other open-qualifier mismatches than with main-stage tier-one CS2 books. Similar EWC qualifier listings elsewhere in the market show 100 Thieves treated as a strong favourite even against lower-profile opposition, including a separate Polymarket CS2 match where 100 Thieves were priced far shorter than the underdog[14]. Strafe also lists 100 Thieves as an overwhelming favourite in this fixture, showing 95% of community picks on 100 Thieves and only 5% on Infinite[12]. That sort of spread suggests the current 28% crowd price is less a sign of a coin-flip and more a reflection of bracket uncertainty, lineup quality, and the volatility of qualifier play-ins.

The main catalyst is simple: whether the match actually starts on schedule and whether the confirmed line-ups match the pre-match listings. EsportNow and Bo3.gg both place the match on 9 August, with the broader Open Qualifier running across 7-9 August and the Round of 32 clustered around the morning slot, so any schedule slip could move the market sharply if it threatens the 7-day settlement rule[2][5][8]. Because this is an online qualifier with many simultaneous BO3s, traders should watch for last-minute admin delays, roster changes, or a bracket reshuffle; if the match is not completed after starting, resolution follows the market’s completion rules rather than a simple abandonment outcome. On Polymarket-style markets, outcomes are quoted as probabilities, whereas sportsbook and exchange listings usually express the same view as decimal odds or matched prices, with liquidity and identity checks varying by platform[6][10][13].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Counter-Strike: Infinite vs 100 Thieves (BO3) - Esports World Cup Open Qualifier Play-Ins specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi Alternative, which mirrors the Polymarket order book at 0% fees.

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

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

What about Smarkets as an alternative?

Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Kalshi Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.