Next UK Prime Minister Odds: Andy Burnham Now Odds-On To Replace Keir Starmer
The Next UK Prime Minister odds have shifted dramatically at the best betting sites overnight, with Andy Burnham's emphatic Makerfield by-election victory sparking a major shift at the betting sites.
Burnham secured the Westminster seat with 54.8% of the vote, removing one of the biggest obstacles to a potential Labour leadership bid.
That comes after weeks of pressure on Sir Keir Starmer, Wes Streeting's resignation, and growing speculation that the numbers may now be there to trigger a contest.
With Starmer insisting he will "fight if there's a challenge", the market is now focused on one question: if he goes, who takes over?
Here at FreeBets.com, we look at the leading contenders, their odds and what the latest betting moves could tell us about Labour's next leader.
Next UK Prime Minister Odds
With Andy Burnham returning to Westminster, Labour are facing the very real prospect of a leadership change before the summer recess.
Below, we assess the four realistic candidates who could be next in line to take the keys to Downing Street.
| Candidate | Next UK Prime Minister Odds |
| Andy Burnham | 1/20 |
| Ed Miliband | 20/1 |
| Nigel Farage | 25/1 |
| Wes Streeting | 25/1 |
Odds correct as of Friday, 19 May, 1:30pm - courtesy of bet365
Andy Burnham
Andy Burnham has surged to the top of the market and is now a heavy favourite.
The Greater Manchester Mayor's return to Westminster via the Makerfield by-election has transformed the race, with his odds shortening sharply as speculation around a Labour leadership contest continues.
Burnham's appeal is built around his appeal with northern voters, his long political experience and his ability to present himself as a change candidate.
His Makerfield victory removed one major barrier - a seat in Parliament - and has strengthened his position as the leading name in the market.
Our verdict: At a short price, the market is effectively backing Burnham as the clear frontrunner. The key question is whether that momentum translates into a formal leadership challenge and a successful contest.
Ed Miliband
Ed Miliband remains one of the leading alternatives and is trading as the second favourite in many markets.
The Energy Secretary has rebuilt his profile in government and already has the advantage of being an established Westminster figure.
His route would likely depend on a contest opening up beyond a straightforward Burnham succession.
The former Labour leader still carries the baggage of his 2015 defeat, but his experience and current position keep him firmly in the conversation.
Our verdict: Miliband offers an interesting outside angle if the market favourite fails to convert momentum into a leadership bid. He represents a more familiar option for both MPs and members if the race becomes more competitive.
Nigel Farage
Nigel Farage's price in this market is based on a very different scenario: not a Labour succession battle, but a wider political realignment.
Reform's polling strength has kept him prominent in Westminster speculation, although a Labour leadership market remains a separate proposition.
His appeal comes from the possibility of continued Reform growth and further pressure on the major parties.
The challenge is timing - the next general election remains a long way off, and first-past-the-post presents a significant hurdle.
Our verdict: Farage is a long-term political bet rather than a short-term leadership play. The upside depends on a much bigger shift in the political landscape.
Wes Streeting
Wes Streeting was once viewed as one of the main challengers, but his odds have slipped as Burnham's momentum has increased
He has publicly indicated he would stand in a leadership contest if one takes place.
Streeting still brings a strong media profile, government experience and support among parts of the Labour right.
However, the path has become more complicated with Burnham now dominating attention.
Our verdict: Streeting remains a serious contender if the race opens up, but his odds reflect the fact that the market has moved significantly in Burnham's favour.
Is Keir Starmer Resigning?
Sir Keir Starmer remains in Downing Street and has repeatedly insisted he has no plans to step aside, telling reporters he would "fight if there's a challenge" and remain focused on delivering the agenda he was elected on.
The betting markets, however, are pricing in a much different scenario, with Starmer heavily linked with the possibility of being replaced as Labour leader during 2026 following a difficult period for the party and growing speculation around a potential challenge.
The key factor is whether a challenger can secure enough support.
Labour rules require nominations from 20% of Labour MPs to trigger a leadership contest, meaning a candidate would need backing from around 81 MPs - a threshold that has become central to the current market.
Andy Burnham's return to Westminster has intensified the speculation, while Wes Streeting has also suggested he has the support needed to launch a challenge.
For now, Starmer remains in place, but the market focus has shifted towards whether Labour opts for a managed transition or a full leadership contest.
