Portsmouth ground out a 12-3 win over London two south west basement side Camberley at Rugby Camp.
Outside-half Dan Neville fired four penalties to give the hosts a vital win.
‘The pitch was heavy and cut up from the start so it was never going to be a game for the purists,’ said Portsmouth coach Ian Chandler.
‘Our forwards were magnificent, though, and won us the game.
‘Camberley were awkward opponents and proved a real thorn in our side.
‘The forwards provided a solid platform and plenty of good ball but our three-quarters didn’t make the most of it.
‘After two heavy defeats the important thing was to get the win and I was pleased with the way we defended.
‘We restricted Camberley to two kicks at goal which was good, considering a lot of the game was played in our territory.’
Neville knocked over three first-half penalties to give the home side a 9-3 lead at half-time.
The only score in the second half came from another 54th-minute Neville kick.
‘We have a trip to top of the league Chobham next up and will have show a big improvement if we are to get anything,’ said Chandler.
‘Our use of possession will have to be a lot better.’
United Services lost a tight Hampshire one contest against in-form Fordingbridge 14-13 at Burnaby Road.
The sixth loss of the season severely dents Services’ promotion ambitions, leaving them 13 points adrift of the second-placed opponents.
Petersfield secured only their second win of the campaign when beating Southampton 26-0 in fine style at Penns Place.
It ended a run of seven straight defeats for the home side.
Fareham Heathens gave an excellent account of themselves before losing 16-7 against Hampshire two leaders Solent University at Cams Alders.
Heathens spokesman Chris Lee said: ‘We made them fight all the way before they came away with the win.
‘We made them battle for everything.’
Alresford’s failure to raise a team meant Southsea Nomads were granted a walk over and given the five league points.