LoL: Cloud9 vs LYON (BO5) - LCS Playoffs

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Active sub-markets

Market context

Cloud9 face LYON in the LCS Upper Bracket final on 7 June, a best-of-five match that will determine which team advances directly to the Grand Final. The Polymarket contract currently prices Cloud9's victory at 28 per cent, implying LYON as 72 per cent favourites. This pricing reflects LYON's stronger regular season performance and recent form, though the conditional token mechanics on Polygon mean traders are effectively wagering USDC against the outcome of a single elimination match where format advantages matter considerably in bo5 play.

Historical LCS playoff data shows upper bracket finals frequently favour the higher seed, yet upsets occur at meaningful frequency—roughly one in four matches sees the lower-seeded team prevail. Cloud9's path to this stage involved eliminating stronger opposition, suggesting their playoff momentum may not be fully priced into the 28 per cent YES position. LYON's dominance in regular season play is the primary driver of current odds, though bo5 formats introduce volatility absent from best-of-three structures that characterise earlier rounds.

Traders should monitor roster availability and any schedule adjustments announced by Riot Games before the 7 June fixture. Recent LCS communications have confirmed fixture integrity for playoffs, though technical delays or player unavailability could trigger the settlement clause extending beyond seven days. Champion select patterns from both teams' recent matches and any coaching staff changes warrant attention, as these often signal strategic adjustments that shift match dynamics in extended series. The settlement window closes 8 June at 02:00 UTC, providing a tight window for resolution confirmation.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket UK, 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.

What does it cost to trade on Polymarket UK?

Zero. Polymarket UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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 UK 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.