Chesterfield reached the FA Cup semi-finals in 1997, but were relegated back to the basement division in 1999–2000. They made an immediate return to the third tier after securing a Third Division automatic promotion place in 2000–01. Relegated in 2006–07, they secured the League Two title in 2010–11, but were relegated from League One the following season. In 2011, Dave Allen took full ownership of the club and oversaw progress to two League Trophy finals; Chesterfield won the trophy with a 2–0 victory over Swindon Town in 2012, and finished as runners-up after losing 3–1 to Peterborough United in 2014. Chesterfield were crowned champions of League Two for a record fourth time in 2013–14, but remained in League One for just three seasons. Two consecutive relegations saw the club relegated out of the English Football League at the end of the 2017–18 season.