Economists polled by the Financial Times claim the above: https://www.ft.com/content/81fbdff6-dacb-476b-a4ba-12696e7f7800

Will this claim hold up?

Will extend the resolution date assuming it's still possible for another country to beat the UK (e.g. the UK and that country are still both in a recession).

Will count length of the recession as # of contiguous quarters of GDP growth.

Will resolve early if the UK has the longest record and no other country is currently in a recession.