Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
91% | 9% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
91% | 9% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Count Binface | 91% |
| Person J | 50% |
| Person K | 50% |
| Person L | 50% |
| Person M | 50% |
| Person N | 50% |
| Person O | 50% |
| Person P | 50% |
| Person Q | 50% |
| Person R | 50% |
| Person S | 50% |
| Person T | 50% |
| Person U | 50% |
| Person V | 50% |
| Person W | 50% |
| Person X | 50% |
| Person Y | 50% |
| Person Z | 50% |
| Person AA | 50% |
| Person AB | 50% |
| Person AC | 50% |
| Person AD | 50% |
| Person AE | 50% |
| Person AF | 50% |
| Person AG | 50% |
| Person AH | 50% |
| Person AI | 50% |
| Person AJ | 50% |
| Person AK | 50% |
| Person AL | 50% |
| Person AM | 50% |
| Person AN | 50% |
| Person AO | 50% |
| Person AP | 50% |
| Person AQ | 50% |
| Person AR | 50% |
| Other | 50% |
| Laurence Fox | 4% |
| Nigel Farage | 2% |
| William Clouston | 2% |
| Giles Watling | 0% |
| Jovan Owusu-Nepaul | 0% |
| Matthew Bensilum | 0% |
| Natasha Osben | 0% |
| Tony Mack | 0% |
| Andrew Pemberton | 0% |
| Piers Corbyn | 0% |
| Adham Alkhatip | 0% |
| Rees Cowne | 0% |
| Kai Stephens | 0% |
| Luke Worley | 0% |
| John Stevens | 0% |
| Pamela Walford | 0% |
Market context
Nigel Farage’s resignation has triggered a Clacton by-election with a very crowded field, and the second-place market is really about who can emerge as the leading non-Farage name rather than who wins the seat. The ballot has been reported as one of the largest ever for a UK parliamentary contest, with 34 candidates set to appear and polling day reported for 13 August after the writ was moved in Parliament and the local authority confirmed the date.[10][14][11][13]
The 2% crowd-implied price looks low because the contest has already been framed by a highly asymmetric race: Farage is widely expected to top the poll, while the identity of the runner-up is more open. In comparable UK by-elections, second place usually follows the strongest organised opposition or the most visible protest candidate, but Clacton’s field is fragmented and includes several independents plus smaller-party entrants, making vote-splitting a material risk. Early market coverage has consistently placed Count Binface well ahead of the rest for second, with other names such as Andrew Pemberton, Nigel Farage, and various smaller-party candidates trailing far behind in market pricing.[4][6][9]
Traders should watch the final nominations list, because declared candidates are not confirmed until the Statement of Persons Nominated is published, and late withdrawals can reshuffle the lower ranks of the ballot.[3][7] Turnout, local campaigning, and any tactical voting narrative are also relevant, especially if media attention consolidates around one anti-Farage candidate before polling day.[1][13] On-chain, the contract settles in USDC, so the position is exposed to crypto-market conditions as well as electoral news; for example, sharp BTC or ETH moves, exchange funding changes, or broader risk-off flows can affect liquidity and willingness to carry small-price tail positions even when the political thesis is unchanged.
Methodology
This page reads Clacton by-election: 2nd place on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
Trade Clacton by-election: 2nd place on BTC Prediction
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