All four Armenian teams won the first matches in Euro Cups.
Pyunik FC defeated San Marino’s Folgore 2:1 in the opening Champions League match.
Pyunik recorded their first UEFA Champions League victory since July 2007.
The Armenian side led through Vardges Satumyan and substitute Cesar Romero, but Hirsch’s header, seconds after team-mate Fabio Ceschi had been dismissed, has given the Sammarinese outfit hope of winning a UEFA tie for the first time.
Gyumri’s Shirak defeated Zrinjski (Bosnia & Herzegovina) 2:0.
Alashkert used their home-field advantage to knock off favourites St Johnstone 1-0 in Armenia.
Mihran Manasyan scored in the 55th minute for the hosts, who will travel to Perth for the second leg on July 9.
Yerevan’s Ulysses played a 0-0 draw with Birkirkara in an away match in Malta.