http://www.fai.org/downloads/civl/CIVL_2016_Agenda_Ax14

Sport class definition: We continue to discuss the future of the
sport class in both Category 1 and Category 2. There seems to be little
consensus, but the issues include purpose of sport class and then defining sport
class pilots AND competitions. The committee is, unfortunately, no closer to
having a definition at this point. Without some overriding and immediate need
for a definition (namely, a proposed international sport class competition –
either Cat 1 or Cat 2), this will continue to be discussed with so many
different ideas from every side.