Prendergast won a second successive Leinster medal in 1979 as Wexford were defeated by 2-21 to 2-17. On 2 September 1979 Kilkenny faced Galway in the All-Ireland final. Bad weather and an unofficial train drivers' strike resulted in the lowest attendance at a final in over twenty years. The bad weather also affected the hurling with Kilkenny scoring two freak goals as Galway 'keeper Séamus Shinnors had a nightmare of a game. A Liam "Chunky" O’Brien 70-yard free went all the way to the net in the first half, while with just three minutes remaining a 45-yard shot from Mick Brennan was helped by the wind and dipped under the crossbar. Kilkenny won by 2-12 to 1-8 with Prendergast winning his first All-Ireland medal.