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Below are the odds for who will win the most seats in the next UK general election.
| Party | Odds | Probability |
|---|---|---|
| | 15/8 | 34.72% |
| | 5/2 | 28.57% |
| | 11/2 | 15.38% |
| | 11/1 | 8.33% |
| | 18/1 | 5.26% |
| | 55/1 | 1.79% |
| | 200/1 | 0.50% |
| | 300/1 | 0.33% |
| | 750/1 | 0.13% |
As of 22 May 2026, according to the odds, the favourite to win the most seats is Reform, best priced at 15/8 with BetGoodwin.
The odds mean that the probability for Reform to win the most seats is 34.72%.
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.