, ▁except ▁for ▁a ▁single ▁occasion . ▁San ▁Mar ino ▁failed ▁to ▁register ▁any ▁athlet es ▁at ▁the ▁ 1 9 6 4 ▁Summer ▁Olympics ▁in ▁Tokyo . ▁ ▁San ▁Mar ino ▁National ▁Olympic ▁Committee ▁() ▁sent ▁a ▁team ▁of ▁four ▁athlet es , ▁two ▁per ▁gender , ▁to ▁comp ete ▁only ▁in ▁athlet ics ▁and ▁shooting ▁at ▁the ▁Games , ▁matching ▁the ▁nation ' s ▁ro ster ▁size ▁with ▁four ▁previous ▁ed itions , ▁including ▁London ▁ 2 0 1 2 . ▁All ▁of ▁them ▁made ▁their ▁Olympic ▁debut ▁in ▁Rio ▁de ▁Janeiro , ▁except ▁for ▁trap ▁shoot er ▁and ▁London ▁ 2 0 1 2 ▁fourth - place ▁final ist ▁Aless andra ▁Per illi , ▁who ▁only ▁returned ▁for ▁her ▁second ▁Games ▁as ▁the ▁most ▁experienced ▁compet itor . ▁Meanwhile , ▁Aless andra ' s ▁older ▁sister ▁Ari anna ▁Per illi ▁led ▁the ▁deleg ation ▁as ▁San ▁Mar ino ' s ▁flag ▁bear er ▁in ▁the ▁opening ▁ceremony . ▁San ▁Mar ino , ▁however , ▁has ▁yet ▁to ▁win ▁its ▁first ▁Olympic ▁medal . ▁ ▁Athletics ▁ ▁San ▁Mar ino ▁has ▁received ▁a ▁univers ality ▁slot ▁from ▁I A AF ▁to ▁send ▁a ▁male ▁ath lete ▁to ▁the ▁Olympics . ▁ ▁Key ▁Note – R anks ▁given ▁for ▁track ▁events ▁are ▁within ▁the ▁ath lete ' s ▁heat ▁only ▁Q ▁= ▁Qual ified ▁for ▁the ▁next ▁round ▁q ▁= ▁Qual ified ▁for ▁the ▁next ▁round ▁as ▁a ▁fast est ▁los er ▁or , ▁in ▁field ▁events , ▁by ▁position ▁without ▁ach