The Irish Open (currently known as the Horizon Irish Open for sponsorship reasons) (Irish: Comórtas Oscailte na hÉireann) is a professional golf tournament on the European Tour. The Irish Open was first played in 1927 and was played annually, except for the war years, until 1950. There was a tournament in 1953, but the event was then not played again until revived in 1975. It has been contested annually since then. From 1963 to 1974 Carroll's sponsored a tournament, generally called the Carroll's International and in 1975 they became the sponsor of the Irish Open which became known as the Carroll's Irish Open. The Irish Open is one of the European Tour Rolex Series events. The Rolex Series started in 2017, with each tournament in the series having a minimum prize fund of $7 million. The date was moved to early July, two weeks before The Open Championship. Since 2014 (except in 2016), it has been one of the Open Qualifying Series with the leading three players who have not already qualified and who finish in the top ten, qualifying for The Open Championship. From Wikipedia
