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

Platform comparison

Market context

KT Rolster and T1 are scheduled to meet in a best-of-three match during the LCK Round 3-4 Legend Group phase on 21 August 2026. The contest forms part of the Korean League of Legends Championship's group stage, where both organisations compete for positioning ahead of playoff qualification. T1 enters as the stronger historical favourite, having won multiple world championships and domestic titles, whilst KT Rolster remains a consistent top-tier competitor with significant recent roster investment.

The 37% implied probability for a KT Rolster victory reflects a substantial underdog position relative to T1's perceived strength. Historical matchups between these franchises show T1 winning roughly 60–65% of encounters over the past three seasons, though KT has secured notable upsets when roster synergy peaks or T1 faces mid-season roster adjustments. Comparable LCK inter-team dynamics suggest that a 37% probability for the underdog aligns with conventional sportsbook spreads for such fixtures, where T1 typically commands −150 to −200 moneyline odds. Prediction markets have historically tracked closer to consensus analyst ratings than traditional bookmakers in esports, where sample sizes remain smaller and line-setting less refined.

Traders should monitor roster announcements and scrim results in the fortnight preceding the match, as mid-season substitutions or injury disclosures can shift win probabilities substantially. LCK broadcast schedules occasionally shift due to production constraints; the settlement window permits rescheduling through 4 September 2026 without triggering a 50-50 resolution. Recent LCK coverage from Korizon and Esports Observer indicates both teams are fielding stable lineups heading into this fixture, reducing the likelihood of last-minute roster disruptions that might compress the current probability gap.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets, which mirrors the Polymarket order book directly.

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

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.