Warlingham won the derby battle at the basement of London Two South East on Saturday, beating Purley John Fisher 27-18.
Both teams lost their opening two games and Purley John Fisher now find themselves languishing at the bottom of the table with no points and a heavy deficit points difference.
From the opening whistle Warlingham regained possession from the kick off and were immediately awarded a penalty.
Centre Oli Doe was just short with his kick but the visitors had signalled their attacking strategy and, after further pressure, Doe was successful with his second opportunity.
PJF came back and when Warlingham were penalised for not releasing the tackled player they scored their first points of the season.
PJF strung together some excellent passages of play and, despite being clear for a try, a final knock on deprived them of a score.
Warlingham's captain Mark Macaskill tried an audacious drop goal from the 10 metre line in true 'Zinzan Brooke' fashion but was unsuccessful on this occasion.
Teenage prop Michael Freeman showed great strength in close quarters and his fellow prop Alex Nunn put in a solid performance.
Warlingham retained more possession than in earlier games and winger Jon Osborne was his usual feisty self and punched holes through the PJF defence to make several metre-gulping advances.
His jinxing run took him close to the home tryline and a well-timed pass to James Griffiths gave Warlingham their first try.
Doe's conversion kick from close to the touch was accurate and put Warlingham in the driving seat.
Macaskill's herculean efforts were rewarded with an impressive solo try under the posts.
Doe again added the extras.
PJF were not to be outdone and a determined forward drive took them over the line and the referee awarded them a controversial try.
Warlingham flanker Max Kelly, who had been ubiquitous in the loose play, was bewilderingly shown a yellow card for killing the ball and spent 10 minutes off the pitch.
After the break PJF immediately took advantage of the extra man and converted a penalty followed by a penalty try when Warlingham were adjudged to have illegally impeded the home side when they were try-bound.
With on two points separating the sides PJF had their tails up and sensed victory.
But then replacement prop James Scott entered the fray and immediately impacted the game by securing turn-over ball and crashing charges into the home pack.
Warlingham's defence tightened up and when Osborne broke free and kicked deep into the home side's half the chase was on.
PJF secured the ball on their own line but a scrum ensued.
When they infringed again the Warlingham supporters bayed for the penalty kick to be taken.
A short penalty tap was taken against all the touchline advice and the risky option was rewarded when flanker Dan Street powered over for the final try which Doe converted.
PJF continued to press the Warlingham line but the referee's final whistle brought this close encounter to an end.
Warlingham's director of coaching Bill Maynard said:"The lads knew they had to improve on earlier performances and the local rivalry between the two clubs demanded it happened today.
"We had much better commitment and passion and I'm really please at the way they have responded both in training and on the pitch today."
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