Starmer successor race heats up as Cairns gains ground with bookmakers

Speculation over the future of Keir Starmer has intensified, with betting markets signalling growing momentum behind a relatively new contender.

Among a crowded field of household names, Alistair Cairns has emerged as a surprise challenger, with his odds of succeeding the Prime Minister shortening sharply in recent weeks.

The former Royal Marine officer, who is nicknamed “Rambo” has represented Birmingham Selly Oak since 2024, was priced at 33/1 just last month. However, a surge in backing from punters has seen those odds cut dramatically to 10/1, reflecting mounting confidence in his prospects.

Bookmakers suggest the shift points to growing unease over Sir Keir’s position, with some within Westminster questioning how long he can remain at the helm amid mounting political pressure.

While several senior figures remain in contention, Cairns’s rapid rise underscores how fluid the leadership race has become — and how quickly momentum can build around an outsider candidate.

Whether that support translates into a genuine leadership bid remains to be seen, but market movements suggest that, for now, he is firmly one to watch.

British Politics – Next Labour Leader betting odds

British Politics – Next Labour Leader betting split (this week)

Oddschecker spokesman Chris Rogers stated, “Al Cairns has been a popular pick this week to be the next Labour leader with 57% of punters backing the ex-Royal Marines officer for the gig. Cairns’s odds have tumbled from 33/1 into 10/1 over the last month putting him firmly in contention according to bookmakers.

“Angela Rayner has led the betting for the lion’s share of the year; at 5/2 she has an implied probability of 29% to succeed Starmer as leader of the Labour party.”