On Friday, April 8, 2016 at 6:56:18 PM UTC+1, krasw wrote:
Flarm does not prevent these accidents. Most if not all gliders in European contests have flarms, it is often mandatory. I witnessed one of those fatal midairs (all had flarms, gaggle was gliding under cloudstreet). They still happen.

could also be lack of training as it is one of the first competitions and so early in the season after the winter break