LoL: LYON vs Sentinels (BO3) - LCS Regular Season

Platform comparison

Market context

LYON face Sentinels in a League of Legends best-of-three match scheduled for 16 August at 7:00PM ET in the LCS Regular Season. The 74% implied probability favours LYON, reflecting their standing as the stronger roster heading into this fixture. Recent roster movements and performance trends across the LCS have shifted team compositions significantly this season, making historical head-to-head records less predictive than current form and player synergy.

Sentinels have undergone notable changes to their lineup in recent weeks, which typically creates a period of adjustment that can affect competitive performance in high-stakes matches. LYON's consistency through the regular season has been a defining feature, though the LCS remains volatile enough that any team can execute well on a given day. The probability gap suggests market participants view LYON as clear favourites, but Sentinels' recent roster adjustments mean their actual competitive level remains somewhat uncertain to observers.

Traders should monitor LCS official announcements for any schedule changes or player availability issues in the 48 hours before the match. Patch notes released before 16 August could shift meta-game advantages between the teams' preferred champions and strategies. Team practice scrims and any public statements from coaching staff about preparation typically surface on social media platforms and esports news outlets in the days immediately preceding matches. The settlement window closes 2026-08-17 at 05:00 UTC, allowing for potential delays or rescheduling within a one-week window before automatic 50-50 resolution.

Methodology

This page reviews LoL: LYON vs Sentinels (BO3) - LCS Regular Season 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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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%.