[3] Watkins played in the 10–8 victory over Swinton in the 1931 Lancashire Cup Final during the 1931–32 season at The Cliff, Broughton, Salford on Saturday 21 November 1931.
Watkins played scrum-half in Salford's 3–15 defeat by Wigan in the Championship Final during the 1933–34 season at Wilderspool Stadium, Warrington on Saturday 28 April 1934.
[4] Watkins was one of the players who successfully toured in France with Salford in 1934, during which the Salford team earned the name "Les Diables Rouges", the seventeen players were; Joe Bradbury, Bob Brown, Aubrey Casewell, Paddy Dalton, Bert Day, Cliff Evans, Jack Feetham, George Harris, Barney Hudson, Emlyn Jenkins, Alf Middleton, Sammy Miller, Harold Osbaldestin, Les Pearson, Gus Risman, Billy Watkins and Billy Williams.
Watkins played scrum-half in Salford's 7–4 victory over Barrow in the 1938 Challenge Cup Final during the 1937–38 season at Wembley Stadium, London, in front of a crowd of 51,243.
Watkins played scrum-half in the 7–10 defeat by Wigan in the 1938 Lancashire Cup Final during the 1938–39 season at Station Road, Swinton on Saturday 22 October 1938.