LoL: KT Rolster vs Gen.G (BO3) - LCK Round 3-4 Legend Group

Platform comparison

Market context

Polymarket is pricing KT Rolster at **38%** to win this best-of-three, which is a noticeable underdog position against Gen.G on the same contract. On Polymarket, the trade is settled in USDC on Polygon through conditional tokens, so the market price reflects the crowd’s view of the match outcome rather than a bookmaker-style line. [2][6][8]

That 38% sits below most other public price snapshots. Comparable markets and bookmakers have generally put Gen.G in front, with Polymarket’s own sister venue showing Gen.G around 65% and outside odds sources ranging from roughly 58% to the high 60s for Gen.G, while KT has been listed between the low 30s and low 40s depending on the source and timing. [1][6][7][13][14] The broader LCK Round 3-4 table also has Gen.G near the top of the group and KT lower down, which fits the market’s bias towards the favourite. [11][16]

For traders, the main catalysts are straightforward: final confirmation that the series starts on time, the published line-up, and any change to the LCK schedule around the 4:00 AM ET slot. If the match is postponed beyond seven days, abandoned without a winner, or otherwise falls into the market’s non-decision rules, resolution moves away from a straight KT/Gen.G binary and towards 50-50 mechanics. [2][3][10][17] A late roster swap or a schedule adjustment from the league would matter more here than general form, because this contract resolves only on the match result, with no map handicap or series score overlay. [2][8]

Sources: 1 · 2 · 3 · 4 · 5

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

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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%.