An Enduro (Match) in 2016 was won with 7 fish. I think there was a total of something like 32 fish caught by 21 teams fishing a couple of days. Biggest fish was 12kgs...so about 27lb.
They hold quite a few matches on there I think so check before you go or you could end up disapointed if all the swims are gone.
ive kept my eye on this years enduro, probably around the same caught this year....it looks a cracking lake and im sure there must be some good fish in there