LoL: Vivo Keyd Stars vs Fluxo W7M (BO3) - CBLOL Regular Season

Platform comparison

Market context

Polymarket is pricing this CBLOL regular-season best-of-three at **0% YES**, even though the contract settles on the match outcome in USDC via Polygon conditional tokens, with a separate 50-50 outcome if the series is not played, ends tied, or is delayed beyond the settlement rules. In practical terms, that means the market is treating a full completed result for either side as effectively absent from the current order book, so traders are relying less on consensus probability and more on whether the match is actually delivered within the settlement window.

The historical read is straightforward: Vivo Keyd Stars have been the stronger side in recent head-to-head data. Recent match listings show Vivo Keyd Stars beating Fluxo W7M 2-0 in CBLOL earlier this year, while broader match-history pages also record a clean recent edge for Vivo Keyd Stars in the matchup.[11][12] Even so, cross-site pre-match views have varied sharply, with one live event page putting Vivo Keyd Stars around 61% and another listing a much more even crowd vote, which is a reminder that prediction markets often reprice quickly when lineup or schedule details change rather than simply tracking past results.[10][12]

For traders, the key catalyst is not team form alone but whether Riot’s CBLOL schedule and match execution remain intact: the posted start was 21:00 UTC on 7 August, and several listings still describe the fixture as upcoming rather than fully resolved.[1][2][19] The main dependency to watch is any official postponement, format change, or administrative issue, because the contract’s 50-50 fallback can matter more than a nominal favourite if the series is not completed inside the window.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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 Polymarket Alternative UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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%.