The Limerick Half Marathon (Great Limerick Run) is a single-loop road race that starts at Pery Square and finishes on O’Connell Street in the city center. The course navigates through the heart of Limerick, crossing the River Shannon via Sarsfield Bridge and passing landmarks such as the Gaelic Grounds and Thomond Park. The terrain is predominantly flat and paved, featuring a mix of urban streets and residential loops with a long, straight finish on the city's main thoroughfare.