LoL: KT Rolster vs Dplus KIA (BO3) - LCK Round 3-4 Legend Group

Platform comparison

Market context

KT Rolster and Dplus KIA have already met in this LCK Round 3-4 Legend Group cycle, and Dplus KIA won that best-of-three 2-1 after KT took the opening map. The match was close on map one, with KT posting 14 kills to 3, but Dplus KIA flipped the series through stronger mid-series execution and finished the reverse sweep in three games.[1][5][9]

That recent result matters because the current **42% YES** crowd price is below a simple coin-flip read, despite the teams’ longer head-to-head staying competitive. Tips.GG lists Dplus KIA with a historical edge across the rivalry, while also showing KT with stronger recent 30-day win rate before this latest meeting, which is the kind of split that often leaves a market near the mid-range rather than heavily shaded to one side.[13] If this is the same scheduled fixture being reflected in the market, the on-chain settlement will ultimately follow the reported match outcome, with a 50-50 fallback only if the game is not played, ends level, or is left unresolved beyond the contract window.

The main catalysts now are whether the LCK schedule holds and whether any rerun, substitution, or admin ruling changes the official result before the settlement deadline. The market description fixes resolution to the match outcome rather than in-game map score, so a completed best-of-three should settle cleanly once the series winner is confirmed. For broader crypto context, BTC and ETH are the only plausible macro overlay here: if spot volatility or derivatives funding moves sharply into the event window, they can affect risk appetite across prediction markets, but they do not change the esports contract mechanics themselves.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

UK Frequently Asked Questions

Why USDC and not ETH or USDT?

USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.

What does a transaction cost on Polygon?

Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.

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%.