Ladbrokes took a £16,500 bet on UKIP at 1/33 to win the Rochester by-election today. That intrepid punter will be collecting a £500 profit on Friday morning if things go as expected. If by some chance the Tories pull off a shock victory, it will probably be the most profitable by-election result in history for the bookies. I don’t hold out much hope.

The media narrative has already moved on to the guessing game of whether any other Tory MPs will be jumping ship. We now make it odds-on that at least one other Conservative defects before Christmas.

Favourite for a while now has been the MP for Kettering, Philip Hollobone. Interestingly, he is an old boy of Dulwich College, along with Nigel Farage. Some shrewdies have been backing UKIP to win his seat at the general election, now 6/1. I guess that might be better value than the 2/1 about him being next out.