Makerfield by-election Winner

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Active sub-markets

Market context

Josh Simons, the Labour MP for Makerfield since 2019, has announced his resignation, triggering a by-election expected in 2026. The constituency, located in Greater Manchester within the Wigan borough, has been held by Labour continuously since 1997. The by-election will determine which candidate secures the seat for the remainder of the parliamentary term, with the settlement window closing on 18 June 2026.

The 70% implied probability for a Labour hold reflects the seat's electoral history and demographic composition. Makerfield voted 66% for Remain in the 2016 referendum and has consistently returned Labour majorities exceeding 10,000 votes in recent general elections. Comparable recent by-elections in traditionally safe Labour seats—such as Rutherglen and Hamilton West in 2023, where Labour retained the seat with 67% of the vote—provide a reference point for how incumbency and local party machinery perform under by-election conditions. However, by-elections introduce volatility; turnout typically falls 15–20 percentage points below general election levels, and tactical voting patterns shift unpredictably.

Traders should monitor candidate selections by Labour and opposition parties, which typically occur 4–8 weeks before polling day. The timing of the writ's dissolution and the official election date announcement will compress the campaign window significantly. Local boundary changes or demographic shifts affecting the constituency register warrant tracking through Electoral Commission updates. Any national political developments affecting Labour's standing—polling shifts, leadership changes, or policy announcements—will likely move the probability, particularly if they coincide with candidate announcements or campaign events reported by regional outlets such as the Manchester Evening News or BBC North West.

Methodology

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

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.

Is this market available outside the US?

Polymarket Bot UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

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.