Career
He played as a hooker for Great Britain, England, Hull Kingston Rovers, and Hull. Flanagan made 411 appearances plus 3 substitute appearances scoring 56-tries, and 13-conversions for 194-points, for Hull KR from 1960 to 1975 before finishing his career at neighbouring Hull. County Cup final appearances
Peter Flanagan played hooker in Hull Kingston Rovers" 25-12 victory over Featherstone Rovers in the 1966 Yorkshire Cup final during the 1966-1967 season at Headingley Stadium, Leeds on Saturday 15 October 1966, played hooker in the 8-7 victory over Hull in the 1967 Yorkshire Cup final during the 1967-1968 season at Headingley Stadium, Leeds on Saturday 14 October 1967, and played hooker in the 11-7 victory over Castleford in the 1971 Yorkshire Cup final during the 1971-1972 season at Belle Vue, Wakefield on Saturday 21 August 1971.
Players Number.6 Trophy final appearances
Peter Flanagan played hooker in Hull"s 13-19 defeat by Widnes in the 1975-1976 Player"s Number.6 Trophy final during the 1975-1976 season at Headingley Stadium, Leeds on Saturday 24 January 1976.