LoL: Shifters vs GIANTX (BO3) - LEC Regular Season

Platform comparison

Market context

Shifters and GIANTX meet in a best-of-three LEC regular-season series, and the crowd’s **42%** implied chance on Shifters leaves GIANTX as the **favourite** at roughly **58%**. The market is therefore pricing a modest edge rather than a blowout, but the public consensus in comparable previews has leaned more strongly towards GIANTX, with GIANTX described as the clear side on recent form and head-to-head record.[8][1]

The historical frame is straightforward: GIANTX have won the last five meetings since February 2025 and, in that span, have not dropped a map, producing a **9-0 map record** in the matchup.[1][3] That is the kind of direct comparative data traders usually overweight in BO3 pricing, especially when it lines up with broader form. Recent prediction coverage also notes Shifters entering with a poor 2026 record and repeated losing streaks, while GIANTX have been steadier in mid-table play and objective control.[8][4] On that reading, the main value case is not a Shifters outright, but a contrarian view that the market may be giving too much credit to a one-sided H2H sample.

The catalysts to watch are roster or scheduling changes, late announcements from the league, and whether either side has a substitute or last-minute preparation issue, because those are the most likely ways to disrupt the expected favourite/underdog script. As of the current listings, the match is still framed as a same-day BO3, and Polymarket’s event description ties settlement to the series result rather than map score, so a clean GIANTX win remains the consensus path while Shifters’ case rests on forcing a draft-driven map rather than overturning the full series.[14][7]

Sources: 1 · 2 · 3 · 4 · 5

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 Who Will Win, 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.

UK Frequently Asked Questions

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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.

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Do I pay tax on prediction market profits in the UK?

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