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

Platform comparison

Market context

Dplus KIA face KT Rolster in an LCK Round 3-4 Legend Group best-of-three, with the market pricing Dplus KIA at 59% against a current 59% crowd-implied edge.[6][17] That sits close to the pre-match range on similar LoL markets, where Polymarket has recently shown DK around 62% and KT around 39% on the same fixture, implying only a modest drift from the crowd rather than a decisive move.[8]

The historical frame is mixed rather than one-sided. Across the long-run head-to-head, Dplus KIA hold a 17-12 series record and a 40-34 map edge, which supports a slight favourite position, but the more recent sample is tighter: the teams split six meetings over the past 12 months, and KT won the latest listed matchup 3-2 on 7 June 2026.[4][5] That combination usually argues for a market in the high-50s or low-60s rather than a heavy favourite, especially in a BO3 where a single draft read or early game can swing the series.

Traders should watch the final match confirmation, starting lineup news, and any LCK schedule changes, because postponement or abandonment would push the contract towards its 50-50 fallback rather than a straight win resolution.[6] On-chain, the main practical issue is settlement risk: the position resolves in USDC, so price action in the market is separate from broader BTC or ETH moves unless a wider crypto drawdown affects liquidity or whale activity around the event. The match is currently scheduled for 9 August at 4:00AM ET, so any delay beyond seven days from that slot would be materially relevant to outcome pricing.[6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reads LoL: Dplus KIA vs KT Rolster (BO3) - LCK Round 3-4 Legend Group on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

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

What are crypto prediction markets?

Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.

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.

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%.