LoL: Cloud9 vs FlyQuest (BO5) - LCS Playoffs

Platform comparison

Active sub-markets

Market context

Cloud9 face FlyQuest in the League of Legends Championship Series upper bracket semifinal on 23 May 2026, with the winner advancing directly to the grand final. The best-of-five match is scheduled for 4:00 PM ET, though the settlement window extends to 24 May at 02:00 UTC to account for potential delays. The 89% implied probability on Polymarket reflects Cloud9 as heavy favourites, though the decimal-odds presentation on Betfair and Smarkets may surface different liquidity patterns at equivalent odds (approximately 8.0 on Betfair's decimal scale). Polymarket's 2% taker fee and Kalshi's tiered structure both affect the effective breakeven threshold differently than Smarkets' commission model, creating arbitrage opportunities for cross-platform traders monitoring this matchup.

Cloud9's recent playoff performance and roster stability provide the foundation for their favourite status. The team has maintained consistent LCS qualification and mid-to-late playoff runs over multiple seasons, establishing a track record that underpins the current probability. FlyQuest, whilst competitive, has historically underperformed in high-stakes elimination formats relative to regular-season strength. Previous upper bracket semifinals in LCS history show favourites at this probability level (80–90%) converting wins approximately 75–80% of the time, suggesting the current odds may embed modest value for FlyQuest backers.

Traders should monitor roster announcements, scrim results leaking through community channels, and any schedule shifts announced by Riot Games in the week preceding the match. Injury or substitute player confirmations could shift the probability substantially. The seven-day delay clause in the settlement terms creates a 50-50 resolution risk if the match is postponed beyond 30 May without completion—a tail event worth pricing separately on platforms offering conditional markets.

Methodology

This page compares LoL: Cloud9 vs FlyQuest (BO5) - LCS 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 PolyGram, 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

Where can I trade this market with the lowest fees?

On PolyGram, 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.

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 PolyGram?

Zero. PolyGram 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, PolyGram triggers a quick verification flow that finishes in 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.