Dave Anderson was appointed as new manager on 11 May 2004. Under his leadership AFC Wimbledon took their good form into the 2004–05 season during which they competed in the Isthmian League First Division — they remained top of the division for the duration of the season, and were convincing title-winners, sealing promotion to the League's Premier Division. The Dons secured another double by defeating Walton & Hersham 2–1 in the Final of the Surrey Senior Cup on 3 May 2005. Over the course of the season, AFC Wimbledon set a new record for the longest run of unbeaten league games at any level of senior football in the United Kingdom. The team remained unbeaten for 78 league matches between 22 February 2003 (a 2–0 defeat at home to Withdean 2000) and 4 December 2004 (a 2–0 defeat at Cray Wanderers).