Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Review UK) Pick polygram.ink (preferred broker) |
70% | 30% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
70% | 30% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Both Teams Slay a Dragon | 70% |
| Game Handicap: KC (-1.5) vs GIANTX (+1.5) | 60% |
| Total Kills Over/Under 27.5 in Game 2? | 52% |
| Both Teams Slay Baron Nashor | 51% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| Total Kills Over/Under 27.5 in Game 1? | 49% |
| First Blood in Game 2? | 48% |
| First Blood in Game 1? | 48% |
| Total Kills Over/Under 30.5 in Game 1? | 38% |
| Total Kills Over/Under 30.5 in Game 2? | 37% |
| Both Teams Slay a Dragon | 36% |
| O/U 2.5 Games | 35% |
| Game 1 Winner | 25% |
| Game 2 Winner | 24% |
| Match Winner | 16% |
Market context
GIANTX and Karmine Corp will face off in a League of Legends European Championship regular season best-of-three match on 17 August 2026. The fixture is scheduled for 1:15 PM ET, with settlement occurring at 23:15 UTC the same day. Current implied odds place GIANTX at 25 per cent, suggesting market participants favour Karmine Corp as the likely victor.
Historical performance data from LEC regular seasons shows that lower-seeded or less-favoured teams rarely command such compressed probability spreads unless roster changes or recent form shifts have occurred. When comparable matchups have settled at similar odds, the favourite typically wins 70–75 per cent of the time, though upsets remain material. Traders evaluating this market should cross-reference recent LEC standings, head-to-head records from the current split, and any mid-season roster adjustments announced by either organisation. The 25 per cent probability for GIANTX suggests either significant recent losses or structural disadvantages relative to Karmine Corp's demonstrated strength.
For programmatic traders, this market's settlement window is tight—ending within hours of the scheduled match start. Conditional order logic should account for the 7-day delay clause, which would trigger a 50-50 resolution if the match is postponed beyond that window without completion. Monitoring LEC's official schedule and team announcements for injury reports or technical issues in the 48 hours preceding the fixture is essential, as such developments can shift implied probabilities materially. The best-of-three format itself introduces variance; whilst the favourite typically advances, individual game outcomes can create arbitrage opportunities for traders tracking live odds across multiple platforms.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Review UK, which mirrors the Polymarket order book directly.
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 Polymarket Review UK. 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%.
Trade LoL: GIANTX vs Karmine Corp (BO3) - LEC Regular Season on Polymarket Review UK
Live order book, 0% fees, USDC settlement in seconds.
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