LoL: KT Rolster vs T1 (BO3) - LCK Round 3-4 Legend Group

Platform comparison

Market context

KT Rolster face T1 in a best-of-three League of Legends match within the LCK's Legend Group phase, scheduled for 21 August 2026. The crowd-implied probability of 37% for a KT victory reflects T1 as clear favourites, though the gap between the teams has narrowed considerably in recent seasons. T1 remain the region's most decorated franchise and retain institutional advantages in recruitment and coaching infrastructure, yet KT have demonstrated competitive parity in head-to-head fixtures over the past two years, winning three of their last six encounters.

Historical context suggests the 37% probability undervalues KT's actual match-up strength. In 2024–2025 LCK seasons, KT's win rate against T1 hovered near 45–50% in regular-season play, with their victories often coming through superior mid-game macro execution and jungler synergy. T1's dominance in international tournaments has not consistently translated to domestic dominance against KT specifically. The current odds appear anchored to T1's brand prestige rather than recent head-to-head data, creating a potential value spot for KT backers at sub-40% probability.

Traders should monitor roster confirmations and scrim results in the week preceding 21 August, particularly any late-stage substitutions or injury disclosures affecting either team's starting five. LCK scheduling announcements occasionally shift match timings; the 6:00 AM ET start time may affect viewership but not competitive conditions. T1's recent domestic form and any roster changes announced by either organisation in the fortnight before the match will be critical signals. The settlement window closes at 16:00 UTC on 21 August, allowing a maximum 14-day postponement window through 4 September.

Methodology

We track LoL: KT Rolster vs T1 (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

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.

FAQ

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 Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 2026 trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.