If you are the Tenant of the Stadium, to a certain extent you are at the mercy of the Landlord.
If Speedway picks two days a week that will suit some Tracks they may find that those two days are impossible for other Tracks and vice versa. What I am saying is that the two night Plan may be very good in theory - but in practice it could, I repeat could, force certain Tracks out of business.
Is that what you want? You have to admit that it is possible.