Its weird. Just a while ago (3 months ago) i black booked a few runners after i saw them do pretty impressive runs. Like 90% of them ended up winning after about 2 or 3 runs after the one i blackbooked them, not ness the first run after i blackbooked em. The thing about this was, by the time it got to the third run after the BB most had jumped off but i got 20's or more for most of them which means i got all the money back on them and then some.