Thats happend many a times to us in Sprint Karting, Superkarting and in IPRA, Last race of the day gets scrapped or cut down in laps, not much you can do about it, besides the flaggies, marshals and Ambo people cant be out there all day including a extra 2 hours because a meeting has run overtime!! It's just bad luck i guess, and in circuit racing its up to us to stay off the track if we've blown something so generally if that occurs we all go out on the track and help with the cement dust!! I guess thats just life, not much you can do about it!!