In 1969 Larkin was in the last line of defence as James Stephens qualified for the senior hurling championship decider for the first time in over thirty years. Fenians provided the opposition, however, the game was delayed until 19 April 1970. Three goals and two points in a devastating opening five minutes paved the way for a comfortable 5–2 to 1–4 half-time lead. James Stephens completed their rout of the Fenians in the second half and recorded an 8–5 to 2–7 victory. It was Larkin's first championship medal.