Winger Jarryd Robinson made a stunning four-try return as Havant crushed Cobham 43-27 at Hooks Lane.
Robinson, who has been training with the England sevens squad, demonstrated his quality.
His efforts inspired Havant to beat the struggling visitors and boost their own bid to start climbing London one south.
After the demolition job, coach Will Knight lauded 21-year-old Robinson.
‘Jarryd is a quality player and faster than anyone else at our level,’ said Knight.
‘If we can create the opportunities for him to run at defences, he will cause a lot of damage.
‘He showed that on Saturday, starting well and keeping it up all game.’
The home side went into the game on the back of five consecutive defeats but, after conceding an early penalty, they raced into a substantial lead.
Two James Read tries and one from Robinson, who outpaced three defenders from midway inside the Cobham half to score under the posts, put Havant 27-3 up after just 12 minutes.
‘We shot out of the blocks with great intensity,’ said Knight.
‘That is something that has been missing because we have tended to get caught out at the start of games.’
Knight, though, was then left a worried man as his side took their foot off the pedal to allow Cobham to reduce the deficit.
‘I started to think here we go again but on this occasion the players kept their heads and settled things back down,’ said Knight.
Two further Robinson tries before half-time settled the home side’s nerves and helped Havant take a 33-17 lead into the interval.
Cobham again reduced the gap to 33-27 but a spate of yellow cards worked in Havant’s favour.
The home side went down to 14 players but Cobham were reduced to 13.
Robinson took advantage to beat two defenders and score in the corner for his fourth try, which Joel Knight converted.
A further Knight penalty guided Havant to a comfortable win.
‘Jarryd will grab the headlines but it was a great all-round team performance,’ said Knight.
‘I felt we stepped up to a different level and if we can maintain this level of performance between now and Christmas then we can get into a much healthier position in the league.’