If there were a word, boundry - which there isn't, as indicated above - it would presumably have been constructed on the same sort of basis as banditry. That means the activities of a bandit, so I imagine boundry might have referred to the activities of a bounder or maybe even jumper. If so, there will be loads of it going on in the Olympic stadium in a few weeks with high-boundry, long-boundry, pole-boundry and so on.
(Sorry, Madiba, I'm just having a bit of linguistic fun and am not getting at YOU!)