On 11 December 2024, it was announced that Hynes had died early that day from a short illness, in Perth, Western Australia.
[7][8] Hynes played at centre in Leeds' 11–10 victory over Wakefield Trinity in the 1968 Challenge Cup "Watersplash" Final during the 1967–68 season at Wembley Stadium, London on Saturday 11 May 1968, in front of a crowd of 87,100, played at centre and was captain in the 7–24 defeat by Leigh in the 1971 Challenge Cup Final during the 1970–71 at Wembley Stadium, London on Saturday 15 May 1971, in front of a crowd of 85,514, and became the first player to be sent off in a Challenge Cup Final after a headbutt on Leigh's Alex Murphy,[9][10] and played at centre (replaced by substitute John Langley) in the 13–16 defeat by St. Helens in the 1972 Challenge Cup Final during the 1971–72 season at Wembley Stadium, London on Saturday 13 May 1972, in front of a crowd of 89,495.
Hynes played at centre in Leeds' 22-11 victory over Castleford in the 1968 Yorkshire Cup Final during the 1968–69 season at Belle Vue, Wakefield on Saturday 19 October 1968, played at centre scored 4-goals, and was man of the match winning the White Rose Trophy in the 23-7 victory over Featherstone Rovers in the 1970 Yorkshire Cup Final during the 1970–71 season at Odsal Stadium, Bradford on Saturday 21 November 1970, played at centre and scored a goal in the 36-9 victory over Dewsbury in the 1972 Yorkshire Cup Final during the 1972–73 season at Odsal Stadium, Bradford on Saturday 7 October 1972, played at centre and scored a goal in the 7-2 victory over Wakefield Trinity in the 1973 Yorkshire Cup Final during the 1973–74 season at Headingley, Leeds on Saturday 20 October 1973, played scrum-half, and was the coach in the 15-11 victory over Hull Kingston Rovers in the 1975 Yorkshire Cup Final during the 1975–76 season at Headingley, Leeds on Saturday 15 November 1975, played at centre and was the coach in the 16-12 victory over Featherstone Rovers in the 1976 Yorkshire Cup Final during the 1976–77 season at Headingley, Leeds on Saturday 16 October 1976.
Hynes played at centre in Leeds' 12-7 victory over Salford in the 1972–73 Player's No.6 Trophy Final during the 1972–73 season at Fartown Ground, Huddersfield on Saturday 24 March 1973.
[3] Hynes was the coach in Leeds' 16-7 victory over Widnes in the 1977 Challenge Cup Final during the 1976–77 season at Wembley Stadium, London on Saturday 7 May 1977, in front of a crowd of 80,871, and was the coach in the 14-12 victory over St. Helens in the 1978 Challenge Cup Final during the 1977–78 season at Wembley Stadium, London on Saturday 13 May 1978, in front of a crowd of 96,000.