In 1984 Blackstones joined Division One of the United Counties League. After finishing as runners-up in 1987–88, they were promoted to the Premier Division. The 1992−93 season saw them win the Lincolnshire Senior 'A' Cup, beating Bourne Town in the final. In 1998 they adopted their current name after Mirrlees Blackstone closed its Stamford works. In 2002–03 they won the Premier Division Knock-Out Cup with a 4–0 win against Buckingham Town in the final; the following season they won the Lincolnshire Senior 'A' Cup for a second time.
