Harpenden conceded a last minute try in a 28-21 defeat at Enfield Ignatians in London Two North West on Saturday.
At half time it had looked as though the visitors were in control and well set for victory.
After going behind to a Jordan Wilson penalty they rattled up three tries in quick succession.
The first saw outside centre Tom Sweeney run back a clearance to touch down under the posts. The second culminated in full-back Fred Gulliford darting over in the corner.
After the hosts had pulled back a try through their inside centre and skipper Keir Bonner, Sweeney went over for his second score.
However, Enfield, through a combination of mistakes by the visitors and exploiting the conditions to the full, slowly began to chip away at their lead. Thanks to a try by prop Matt Pollard and two penalty kicks by Justin Wilson, they managed to level the scores with eight minutes to go. With the referee looking at his watch Harps then contrived to throw away the game.
In trying to launch a counter attack from inside their 22 they gave Jack Wilson the chance to swoop on a pass and dart in for the winning try.
Harps are next in action on December 5 when they entertain Staines.
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