[Cjgogo]

Just as he enters the checkpoint,destroy it,and that's it(DESTROY only the last one and togheter with that the rest of the checkpoints).Get his name and congratulate him :P.If anyone did not reach the last checkpoint or not even the pre-last(as the other checkpoints have been destroyed togheter with the last one when the winner entered it,he cannot continue),show him a gametext you have lost the race.And also to all who did not enter the last checkpoint.That would be done using a for loop,but you have to exclude the winner's playerid.All this piece of code should be stored on your checkpoints streamer OnPlayerEnterDynamicCP(at least that's for Incognito's streamer).And that's it.