The Leinster GAA Hurling Senior Championship, known simply as the Leinster Championship, is an annual inter-county hurling competition organised by the Leinster Council of the Gaelic Athletic Association. It is the highest inter-county hurling competition in the province of Leinster, and has been contested every year since the 1888 championship. The final, usually held on the first Sunday in July, serves as the culmination of a series of games played during May and June, and the results determin

: https://en.wikipedia.org/wiki/Leinster_Senior_Hurling_Championship