Barka, Jan.09 (ONA) ---- The Royal Horse Racing Club organized today the 10th race in Al Rahba Horserace Course in the current horse racing season.  It included 8 rounds, 6 of which were allocated for purebred Arabian horses and two races for purebred hybrid horses.    The title of the first round, dedicated to purebred Arabian horses local production for a distance of / 1200 / meters went to the mare Abrar, owned by Yasser bin Mohammed al-Kalbani, ridden by Macon de Souza.    The title of the second round assigned to purebred Arabian horses for a distance of / 1200 ...