2 weeks to go.
Rode one lap of the track today and it is a touch muddy. Of the 3.5 miles I would estimate that it is :-
3/5 well drained and flat out
1/5 claggy but rideable
1/5 slip slidy push and carry
Unless it freezes it is going to be like this on the day.
Pack your mud tyres... and leave a change of clothes under the garden table.