Because the football pyramid was not yet in existence, the club were forced to drop right down to replace their reserves in Junior Division 1 of the Southampton League and it was not until 1968 that they won promotion back to the senior section.
By the 1970s, the club started to re-surface out of the doldrums of lower league football and after three successive promotions and a Southampton Senior Cup triumph in 1974.
This was despite the club running an extremely successful Youth System with Phil Glass Under 18s winning the Wessex Youth League and reaching Quarter final of FA Youth Cup where they were narrowly beaten by Yeovil Towns Full-time Apprentices, The team captained by Paul Mabey were expected to boost the club for years to come but reluctance by senior management to pick youth meant players were lost for several years, Despite these setbacks, Romsey bounced back and within two years with high-profile local players returning such as Mabey, Paul Glass, Glenn Burnett, Peter Kelly, Stuart Carpenter & James Kirby the good times returned to the Bypass Ground and they won the Southampton Senior Cup and promotion back to the Wessex League.
2005–6 season Trevor Holmes was joined by Julian Walters from Hamble Club FC, who brought a large number of players to Romsey, and saw them consolidate again in Division 1.
2007-8 saw Glenn Burnett and Lee Harrison join the managerial team eventually taking the managers roles later that season, with Holmes and Walters stepping aside having consolidated the club.
Now with an encouraging 2007–08 season with new manager pairing Glenn Burnett and Lee Harrison at the helm Romsey's team spirit was at an all-time high.
The team were performing well on the pitch as well with two consecutive mid-table finishes really consolidating Romsey's position in the Wessex Premier League.
In the 2010–11 season, backed by the new management duo of Wayne Mew and Stuart Long, began with many trials as Romsey searched to rebuild a team.
One of the high points of the season was Romsey's longest-serving and most prolific player in their history, Simon De'ath, who finished with 25 league goals, placing him seventh in the goalscorer charts.
[3] Following one of Romsey's most successful seasons, where Simon De'ath was once again top scorer,[4] after finishing in 8th place alongside two cup quarter finals, manager Wayne Mew decided to resign from the Bypass Ground.
[9] Carl Bennett and later John McFarlane took over as co-managers but on 30 April 2014, James Phillips was appointed the new head coach, after the club finished bottom of the league.