Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
64% | 36% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
64% | 36% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on PolyGram.
Active sub-markets
| Andy Burnham | 64% YES | 37% NO |
| Simon Finkelstein | 0% YES | 100% NO |
| Maria Deery | 0% YES | 100% NO |
| Rebecca Shepherd | 6% YES | 94% NO |
| Candidate C | — | |
| Candidate E | — | |
Market context
A by-election is expected in Makerfield after incumbent Josh Simons’ resignation, and the market has Burnham/ Labour-leaning outcomes priced as the most likely result, with the crowd at 63% YES for the named winner. That is consistent with the constituency’s broader voting history, where Labour has generally been the default favourite unless there is a sharp local swing. In single-seat by-elections, the polling error can be larger than in general elections because turnout, protest voting and candidate selection matter more, so a mid-60s price signals a solid but not dominant lead rather than a foregone conclusion.
For traders, the key catalysts are the formal writ, the candidate shortlist and any campaign developments that shift turnout expectations or consolidate the anti-Labour vote. Recent reporting has already highlighted Andy Burnham’s involvement in the seat and a moving market picture, with one market putting him in front at 57.5% while Reform UK’s Robert Kenyon was close behind at 39% after the May local election results. The next few weeks will matter most for whether Labour can frame the contest as a straightforward hold, or whether opposition parties can turn it into a protest vote over national conditions. The market will ultimately resolve on the official winner, with credible reporting and the published election result as the decisive sources.
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
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.
- What does it cost to trade on PolyGram?
- Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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.
Trade Makerfield by-election Winner on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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