After winning three championships and the Leicestershire Sunday Intermediate Cup, they switched to Saturday football, joining the Leicester Mutual League.

Promoted to the Division One, Birstall finished as runners-up in 1981–82, a season in which they also won the Tebbutt Brown Cup, beating league champions Anstey Nomads 1–0 in the final.

[3] They won the cup again in 1997–98, defeating Ibstock Welfare on 4–3 penalties following a 1–1 draw, and retained it the following season, beating Oadby Town 2–0 on penalties after a 2–2 draw;[3] the season also saw them finish as runners-up in the (now renamed) Premier Division.

[2] After winning the Premier Division in 2015–16, the club were promoted to the East Midlands Counties League.

[2] At the end of the 2017–18 season, Birstall were transferred to Division One of the United Counties League.