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

Platform comparison

Market context

KT Rolster and Dplus KIA are set for another LCK best-of-three after Dplus KIA came through the most recent meeting 2-1, with the match staying close enough that KT took the opener before DK closed out the series. That recent result matters because the market’s current 41% YES price is below a true coin-flip, suggesting traders are leaning towards Dplus KIA retaining the edge rather than treating KT as the more likely winner.[2][3][5]

The broader head-to-head still looks competitive, but the recent split is uneven enough to complicate any simple historical read. Across the longer sample, Dplus KIA have led the series overall, while KT’s recent form has also been respectable in individual games and series, which helps explain why the market is not pricing DK as an overwhelming favourite.[7][11][15]

The main catalysts now are team news, exact stage scheduling, and whether the rematch starts on time in the LCK Legend Group slot. Since this market settles on the series winner only if the match is completed, any late postponement, cancellation, or unusual format change would be decisive for resolution mechanics rather than team strength; otherwise, the key watchpoint is whether KT can replicate its Game 1 control from the last meeting or whether DK’s mid-game coordination again swings the series.[2][5]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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%.