[4] Billy Benyon played stand-off in St. Helens' 2–25 defeat by the 1975 NSWRFL season premiers, Eastern Suburbs Roosters in the unofficial 1976 World Club Challenge at Sydney Cricket Ground on Tuesday 29 June 1976.
[8] Billy Benyon played left-centre in St. Helens' 35–12 victory over Halifax in the Championship Final during the 1965–66 season at Station Road, Swinton on Saturday 28 May 1966, in front of a crowd of 30,165.
Billy Benyon played right-centre in Warrington's 9–4 victory over Widnes in the 1977–78 Players No.6 Trophy Final during the 1977–78 season at Knowsley Road, St. Helens on Saturday 28 January 1978, and played left-centre in the 4–16 defeat by Widnes in the 1978–79 John Player Trophy Final during the 1978–79 season at Knowsley Road, St. Helens on Saturday 28 April 1979.
Billy Benyon played right centre ie number three in St Helens 11-7 victory over Australia national rugby league team at Knowsley Road on 13 November 1973.
Billy had a superb game in an under strength Saints side who beat a team contains Australian legends Bobby Fulton and Artie Beetson amongst others.