quar·ter·fi·nal 
(kwôr′tər-fīnəl)
(kwôr′tər-fīnəl)adj.
Of or relating to one of four competitions in a tournament, whose winners go on to play in semifinal competitions.
n.
1. quarterfinals A quarterfinal round.
2. A quarterfinal match.
quar′ter·final·ist n.