Irish Athletics Championships
The Irish Athletics Championships, also known as the National Senior Track and Field Championships is an annual outdoor track and field competition organised by Athletics Ireland, which serves as the Irish national championship for the sport. The event was first held in College Park on Monday the 7th of July 1873 and has been held every year since, becoming the longest running national championships in the world.
Source: Wikipedia — Irish Athletics Championships (CC BY-SA 4.0)