This article first appeared at gambling.com on September 10th, 2026
We have yet another cracking by-election to look forward to, following the resignation of former PM Keir Starmer. Voters in the Kings Cross and St Pancras constituency will go to the polls on October 8, for what betting apps are billing as a competitive two-horse race. Other parties beside Labour and the Greens can be backed at 100/1 upwards.
This will be the seventh by-election since Labour came to power in July 2024. Eight if counting the Caerphilly by-election for the Welsh Senedd. Discounting Clacton, which was boycotted by all major parties besides Reform, all were won by different parties, with each reflecting distinct dynamics, and thus illustrating the many different types of constituency in the UK.
We’ve had one effectively electing a PM, following one which effectively finished Andy Burnham’s predecessor. A Tory/SNP fight in Aberdeen, and Nigel Farage fighting a bin in Clacton. Now, a straight fight between the two English parties of the left, in London. Based on the latest best odds, Labour are 2/5 (Betway) to win, compared to 5/2 for the Greens.
It won’t be as fundamental to the national picture as Burnham’s victory in Makerfield, or Gorton & Denton, which destabilised Starmer, but there are still meaningful implications.
Make or break for Polanski?
Not least because Green Party leader Zack Polanski has opted in. Having instantly cut through, building a personal brand, taking the party to new heights in the polls and winning the Gorton & Denton by election, this is a key test. Perhaps a decisive one for his future prospects.
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