Horsham Rugby Club admit they have no idea how they lost to Sheppey on Saturday.
The Green and Whites were in control of their London South East 3 match, with a 17-6 half time lead, only for a series of poor decisions and a string of penalties see the hosts snatch defeat from the jaws of victory against second-placed Sheppey.
Horsham, meanwhile and slipped to sixth in the London South East 3 table.
Coach Nick Stocker said: “If we had not butchered three try scoring opportunities in the second half we would have won that game hands down. It was a disappointing loss, not least because they are second in the league and on every count we were the better side.
“We were far more ambitious as a team, we had more threat with ball in hand and made them look relatively mediocre.”
Rob Grantham-Hill, Sam Rice and Jamie Gibbs scored for Horsham before they failed to score in the second half.
Stocker said: “How on Earth we lost that game I’m yet to work out.
“It was, without doubt, an early Christmas present for Sheppey.”