The Welsh Rugby Union (WRU) is checking its record books after a clash between two south Wales sides ended 170-nil.
Penallta RFC says it is a 'close-knit' club
Penallta RFC, from Hengoed, Caerphilly, ran in 26 tries in their white-washing of Cardiff side Canton RFC on Saturday.
Penallta are now joint top of the Division Five South East league in their first season since gaining league status and are likely to be promoted.
Canton secretary Phillip Cunningham said he was optimistic as the club had an "exceptional" youth side coming up.
Dave Stevens, a Penallta committee member and former coach, put their success down to a "close-knit, happily-run club".
"All the boys are products of our youth system and they're local lads," he said.
"170-nil has got to be one-sided to a certain extent but Canton didn't roll over and die.
"They threatened to score several times and played with spirit right to the final whistle."
Penallta was among three district clubs which won promotion to the league last season - all of which have made it into the quarter finals of the Glamorgan Silver Bowl.
Mr Cunningham said his club had experienced similarly quick success 10 years ago when they were promoted three times in four years.
He described the recent loss to Penallta as "just one of those things".
"We're having a bit of a lull at the moment. It's disappointing but I'm very pleased and proud of the people who took to the pitch," Mr Cunningham said.
"It would have been easier for us not to turn up but, unfortunately, the coach driver knew the way!
"We need to regroup and refresh. Thankfully we have got an exceptional youth side coming up.
"I'm very optimistic in the near future we will progress better."