LoL: CTBC Flying Oyster vs Ground Zero Gaming (BO5) - LCP Group Stage

Platform comparison

Market context

CTBC Flying Oyster and Ground Zero Gaming are already into the series, with live scoreboards showing the match in progress and the current state at 1-1 rather than a pre-start situation.[1] That is the main shift in the last day: this market no longer prices a future kickoff, but a live best-of-five where the next map can swing the settlement path sharply, especially with the market set to resolve on the match winner if the series reaches a completed result.[1][5]

For context, this pairing has split recent meetings and has not been a one-sided fixture across the year. Strafe lists the head-to-head as 2-2 overall, with CTBC Flying Oyster taking the most recent meeting 2-0 in May 2026, while Ground Zero Gaming won the earlier LCP 2026 Split 1 playoff series 3-1.[4][6] That history explains why a zero-implied-probability quote is difficult to reconcile with the competitive record; even the broader season table placed Ground Zero Gaming above CTBC Flying Oyster in Split 1 standings.[12]

Traders should watch for whether the live broadcast and official match page continue uninterrupted, because the contract’s 50-50 fallback only becomes relevant if the game is cancelled or left unresolved beyond seven days.[5] The key dependency is simple: any completed match result decides the market, while a mid-series abandonment would shift attention to the settlement rules rather than current momentum.[5] Sofascore’s live listing confirms the event is/was scheduled on 9 August, but the practical catalyst now is whether the series finishes cleanly and which side closes the remaining maps.[1]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews LoL: CTBC Flying Oyster vs Ground Zero Gaming (BO5) - LCP Group Stage across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Today, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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%.