Redruth boss Dave Penberthy says Launceston wanted to win their Cornish derby match more than his side.
Despite taking an early lead through Aaron Penberthy's penalty, James Salter scored just before half time to give Launceston a 10-3 lead at the break.
Two Kieron Lewitt penalties and converted Paul Andrew try put Launceston out of reach before Paul Thirlby scored a late try for Redruth.
The 20-10 loss was Redruth's first defeat in five matches.
"One of the questions I've asked our lads is 'do we really want to win up here?' We folded, I felt, in the second half," Penberthy told BBC Radio Cornwall.
"We've had four very good performances going into this game.
"Form goes out of the window in this and it's down to who wants it the most and Launceston wanted it the most," he added.
Redruth have never won a league game at Polson Bridge and Penberthy felt that his side were the favourites going into the game off the back of four bonus-point victories.
"I'm getting used to coming up here and not winning," he continued.
"It's been a long, long time and I really thought this year, with the last four games as we've played really well, that we had a chance.
"I'm disappointed, but the best team won on the day.
"We were beaten by the better team, that's the end of the story."