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

Platform comparison

Market context

Polymarket has this contract at **41% YES**, so the market is pricing KT Rolster as the underdog against Dplus KIA in the scheduled LCK best-of-three. On Polymarket, that exposure sits on-chain: users hold USDC on Polygon and trade conditional tokens whose settlement is tied to the match result, with a non-played, tied, or materially delayed fixture resolving to 50-50 under the market rules.

The recent head-to-head context is mixed rather than one-sided. The teams have split notable recent meetings, and the most recent listed result before this market is Dplus KIA’s 2-1 win over KT Rolster in the same LCK Round 3-4 Legend Group on 9 August, with Dplus taking the series 2-1. Longer-run history also leans Dplus: one results archive puts the all-time series at 17 Dplus wins to 12 for KT, with 40 maps to 34. That profile helps explain why the contract is below parity even though KT has shown it can take maps and occasionally take series off Dplus.[1][3][18]

For traders, the main catalysts are straightforward: confirmation that the match stays on schedule, any roster or starting-line-up changes, and whether the series is actually completed inside the seven-day settlement window. Because this market only resolves to a side if a winner is officially determined, any postponement, cancellation, or incomplete series becomes a central pricing risk rather than just a sporting one. Polymarket’s own event page also frames Dplus as the stronger regular-season side in the group, so last-minute schedule or form news is likely to matter more than broad season averages.[5][10]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track LoL: KT Rolster vs Dplus KIA (BO3) - LCK Round 3-4 Legend Group across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

UK Frequently Asked Questions

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.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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%.