No, there is not. There's an onMinigameRoundEnd event, though.
The problem with events like this is that Blockland's event system is very limited as far as input events - to do this I would need to create at least 6 whole new input events that clutter up the list. I've suggested a solution to this problem several times but it has been ignored:
http://forum.blockland.us/index.php?topic=165786.0If you want to see more of this kind of event in Slayer, you'll need to ask Badspot for the Input Event Parameters I recommended in that thread.
