Below are the odds for who will win the most seats in the next UK general election.
| Party | Odds | Probability | 
|---|---|---|
| Reform | 5/6 | 54.55% | 
| Labour | 9/4 | 30.77% | 
| Conservative | 33/1 | 2.94% | 
| Liberal Democrats | 45/1 | 2.17% | 
| Green Party | 250/1 | 0.40% | 
As of 4 November 2025, according to the odds, the favourite to win the most seats is Reform, best priced at 5/6 with BoyleSports.
The odds mean that the probability for Reform to win the most seats is 54.55%.
In the 2024 UK General Election, Kier Starmer's Labour Party won the majority of seats (411) with 33.7% of the vote share.
In the 2019 UK General Election, Boris Johnson's Conservative government won the majority of seats (365) with 43.6% of the share.