Makerfield by-election Winner

Platform comparison

Active sub-markets

Market context

A by-election in Makerfield, triggered by Josh Simons’ resignation, is due in June and will decide which candidate takes the Westminster seat. The market is priced at 62% for the current “YES” side, so the implied read is that the named leading candidate is still favoured, but not overwhelmingly. For context, recent coverage has said Labour has selected Andy Burnham and Reform UK has confirmed Robert Kenyon, with the vote expected on 18 June. Under German GlüStV rules, access can be affected by local gambling classification and geo-restrictions; in the US, CFTC reach can matter where event contracts are viewed as derivatives; and “no-KYC up to $1,500” means smaller trades may be possible without full identity checks, though access still depends on jurisdiction and platform controls.

Comparable UK by-elections often turn on whether the governing party can hold a seat after a resignation, rather than on national polling alone. That makes a 62% market probability consistent with a contest where the frontrunner has a clear edge but is exposed to turnout swings and local tactical voting. The market should be read alongside margin markets: Polymarket’s separate Makerfield margin contract has recently shown Burnham 9%+ as the lead outcome, with other smaller-margin bands close behind, which suggests traders are not treating the result as a foregone conclusion.

The main catalysts are confirmation of the final candidate slate, the official polling date, and any late campaign polling or local reporting that changes expectations. Recent reporting from Paddy Power News on 19 May said the by-election is expected on 18 June and identified Labour and Reform candidates already in place, while later coverage and campaign material may sharpen the market if turnout, ward-level results, or constituency-specific issues move the race. Final settlement will depend on the official result, with credible reporting used if there is any ambiguity.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Makerfield by-election Winner on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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

Where can I trade this market with the lowest fees?

On PolyGram, 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?

PolyGram 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 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, PolyGram 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.