LoL: T1 vs Team Liquid (BO5) - Mid-Season Invitational Play-In

Platform comparison

Active sub-markets

Market context

The underlying event is the upper bracket semifinal 2 match between T1 and Team Liquid at the 2026 Mid-Season Invitational Play-In, scheduled to begin at 4:00 AM ET on 28 June. This is a decisive League of Legends contest where a T1 victory resolves the market to YES, while a Team Liquid win resolves it to NO, with specific cancellation or delay conditions triggering a 50-50 split.

Historically, T1’s dominance in MSI tournaments frames the current 84% crowd-implied probability as a rational assessment rather than blind hype. In the inaugural 2015 MSI, T1 finished as runners-up after losing to Edward Gaming, and they hold the record for the most global MSI appearances, having represented the LCK since the tournament’s inception[2][8]. Recent precedents show T1 overcoming strong opposition, such as G2’s spectacular semi-final win over them in a previous year, yet T1 consistently rebounds to secure top placements, suggesting their 84% favour is grounded in a decade of proven resilience against elite teams[3].

Traders approaching this programmatically must monitor live score feeds and official tournament announcements for any schedule shifts or player availability changes before the 4:00 AM ET start. The primary catalyst is the match’s completion status; if the game begins but is not finished due to an opponent forfeit, the market resolves to the winning team, whereas a full cancellation resolves to 50-50[9]. A recent Invenglobal report confirms the MSI in Daejeon kicks off on the 28th with this specific matchup, making the official start time and any pre-match roster updates the critical dependencies for conditional order execution[8].

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). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Bot UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Bot UK triggers a quick verification flow that finishes in 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.