I'm sure many can come up with examples of riders having ridden at tracks that have since closed?
Greg Hancock is one that comes to mind - Cradley Heath, Stoke, Coventry, Oxford & Reading.
Being associated with five closed tracks seems unfortunate but are there any out there who have ridden for more 'closed' tracks and I'm not including riders that have ridden for both closed and current tracks...I guess that Neil & Les Collins may fall into that category?