Leinster Senior Hurling Championship

The Leinster Senior Hurling Championship, known simply as the Leinster Championship, is an annual inter-county hurling competition organised by the Leinster Council of the Gaelic Athletic Association and the highest inter-county hurling competition in the province of Leinster. It has been contested every year since the 1888 championship, with the final usually held on the first Sunday in June after a series of games in May and June, and the winners receive the Bob O'Keeffe Cup. It was long played on a straight knockout basis but has used a round-robin format since 2018, and six teams currently take part, although fifteen have competed since 1888. The championship forms part of the wider All-Ireland Senior Hurling Championship: the Leinster winners advance directly to the All-Ireland semi-finals, and the lowest-placed team each year is relegated to the Joe McDonagh Cup. Kilkenny hold the record with 77 titles.