He played representative level rugby league (RL) for Great Britain (non-Test matches), England and Yorkshire, and at club level for Wakefield Trinity (captain) (two spells, pre and post-World War II) and Hanging Heaton WMC ARLFC, as a wing and later as a second-row,[2] and club level rugby union (RU) for Wakefield RFC Old Boys (in a period of dispensation for "retired" rugby league players during World War II, he would later return to rugby league with Wakefield Trinity), and coached at club level for Batley.
Mick Exley won caps for England (RL) while at Wakefield Trinity in 1932 against Wales, in 1933 against Other Nationalities, and in 1939 against France.
Mick Exley played at second-row in Wakefield Trinity's 13–12 victory over Wigan in the 1945–46 Challenge Cup Final during the 1945–46 season at Wembley Stadium, London on Saturday 4 May 1946, in front of a crowd of 54,730.
[8] Mick Exley played at second-row in Wakefield Trinity's 0–8 defeat by Leeds in the 1932–33 Yorkshire Cup Final during the 1932–33 season at Fartown Ground, Huddersfield on Saturday 19 November 1932, played at second-row in the 5–5 draw with Leeds in the 1934–35 Yorkshire Cup Final during the 1934–35 season at Crown Flatt, Dewsbury on Saturday 27 October 1934, played at second-row in the 2–2 draw with Leeds in the 1934–35 Yorkshire Cup Final replay during the 1934–35 season at Fartown Ground, Huddersfield on Wednesday 31 October 1934, played at second-row in the 0–13 defeat by Leeds in the 1934–35 Yorkshire Cup Final second replay during the 1934–35 season at Parkside, Hunslet on Wednesday 7 November 1934, played at second-row in the 2–9 defeat by York in the 1936–37 Yorkshire Cup Final during the 1936–37 season at Headingley, Leeds on Saturday 17 October 1936, played on the wing in the 9–12 defeat by Featherstone Rovers in the 1940–41 Yorkshire Cup Final during the 1939–40 season at Odsal Stadium, Bradford on Saturday 22 June 1940, and played at second-row in the 10–0 victory over Hull F.C.
[9] Mick Exley was the Landlord of the Commercial Inn, Thornes Lane, Wakefield from 1945 until 1952, and later the Black Swan, Castleford Road, Normanton.