if you are 4 players (3 ghosts and the driver) then you can do following:
put 3 triggers after the finish line in driving direction and each kind of trigger has to fill the whole row. the first trigger with blackscreen is set after the worst ghost, the second trigger after the second ghost.
and the best ghost is no blackscreen needed, because:
if you win, you won the race.
if you loose, you don't beat the time to complete this knockout round.
that's the way, i would create it
