History. No count from past races: the promised and actual dates of past lists were not recorded. The checker compares Hunch with the page base of 5 of 6.
Hunch. The date comes from an unnamed source and has already moved once, from 13 to 20 November.
The timing market resolves on the date the party names its final list: YES if on or before 20 November 2026, and NO if later. BBC News and The Guardian confirm the date.
We looked for cases where a party chose its candidate for London mayor through a vote of members, and the press at the time named one person as the favourite. We found six since 2007, four Conservative and two Labour.