Renilson played in Halifax's 15–7 victory over St. Helens in the Rugby Football League Championship Final during the 1964–65 season at Station Road, Swinton on Saturday 22 May 1965.
[2] Renilson played loose forward, and scored a try in Halifax's 10–0 victory over Featherstone Rovers in the 1963 Yorkshire Cup Final during the 1963–64 season at Belle Vue, Wakefield on Saturday 2 November 1963.
Renilson represented Commonwealth XIII while at Halifax in 1965 against New Zealand at Crystal Palace National Recreation Centre, London on Wednesday 18 August 1965,[3] He also won caps for Great Britain while at Halifax in 1965 against New Zealand, in 1967 against Australia (sub), in 1968 against France (2 matches), in the 1968 Rugby League World Cup against Australia, France and New Zealand, and in 1968 against France.
[4] Renilson's uncle, Billy, also played rugby league for Halifax between 1925 and 1928.
[5] (The figures in parentheses refer to the number of games played in the 1968 World Cup.)