LoL: FlyQuest vs Sentinels (BO5) - LCS Playoffs

Platform comparison

Active sub-markets

Market context

FlyQuest and Sentinels will contest the lower bracket quarterfinal of the 2026 LCS Playoffs on 30 May at 4:00 PM ET in a best-of-five series. The winner advances; the loser is eliminated. The 90% implied probability on Polymarket reflects FlyQuest's superior regular-season standing and recent form, though the decimal-odds representation across Kalshi and Smarkets may surface slight variations in how European and US traders price the same fundamental matchup.

Historical precedent suggests lower-bracket LoL series are volatile relative to their seeding differentials. FlyQuest's regular-season ranking carries weight, yet Sentinels have demonstrated mid-season surges in prior years that complicate straightforward favouritism models. The gap between 90% and a true 80–85% baseline reflects uncertainty baked into best-of-five formats, where single-game variance compounds across multiple rounds. Traders on Betfair's exchange have historically shown willingness to back underdogs in elimination matches at steeper odds than fixed-odds books offer, creating potential cross-platform divergence if Sentinels' odds drift higher there than on Polymarket's order-book model.

Key catalysts include roster confirmations and any last-minute schedule adjustments announced by Riot Games in the week prior. Injury reports or substitute-player announcements could shift the 90% figure materially. The settlement window closes 31 May at 02:00 UTC, allowing a one-day buffer for match delays; any postponement beyond 7 June triggers a 50-50 resolution. Monitor official LCS communications and team social channels for any forfeiture declarations, which would resolve the market based on the specific contractual outcome rather than competitive result.

Methodology

We read LoL: FlyQuest vs Sentinels (BO5) - LCS Playoffs from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

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 Polymarket Alternative, 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.

Is this market available outside the US?

Polymarket Alternative is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Alternative 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.