LoL: Sentinels vs Shopify Rebellion (BO3) - LCS Regular Season

Platform comparison

Market context

Sentinels versus Shopify Rebellion is a best-of-three LCS regular-season match, and the market’s **100% YES** price is materially stronger than the independent pre-match signals available. Bo3.gg lists Sentinels around **1.67** to win the match, with a **2–0** scoreline marked as the most likely exact result, while Strafe’s user poll leaned only moderately towards Sentinels at **57.4%** versus **42.6%** for Shopify Rebellion, suggesting crowd markets can still overstate certainty in a single series.[1][14] Recent head-to-head evidence also cuts against a pure sweep assumption: Sentinels beat Shopify Rebellion **2–0** in their spring meeting, but that was one result in a small sample rather than a stable rivalry trend.[4][8][16]

For traders, the main catalysts are straightforward: line-up confirmation, whether the match starts at the scheduled LCS window, and any broadcast or schedule changes that could affect settlement timing. Sofascore shows the series in progress at **22:40 UTC** on 8 August, which implies the contract is tied to an event that is already live or close to live, so completion rather than pure scheduling risk is the key variable.[5] The market rules also matter: if the match is abandoned, tied, or pushed beyond the seven-day window without a winner, it resolves **50-50**, so postponement risk is the main non-performance dependency.[Market description]

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

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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Best Prediction Markets. 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.

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.

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 Best Prediction Markets trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.