The 1977âÂÂ78 Challenge Cup was the 77th staging of rugby league's oldest knockout competition, the Challenge Cup.
The final was contested by Leeds and St. Helens at Wembley.
Leeds beat St. Helens on Saturday 13 May 1978 in front of a crowd of 96,000.
The winner of the Lance Todd Trophy was Saints forward, George Nicholls.
This was Leedsâ eleventh Cup final win in fifteen appearances and their second in successive years.
The first round consisted of all 30 professional rugby league clubs, plus two amateur teams, Dewsbury Celtic and Pilkington Recs.
The match between Leeds and Halifax was televised by the BBC, and became infamous for a stray dog which invaded the pitch several times during the match.