This match, against the current league leaders, was sweet revenge for the sponsored Tees-R-Us Tenby Under 16s, who lost by the same score at Pennar at the beginning of the season.
The Seasiders had the better start during the opening 15 minutes, with Jack Christopher and Liam Robson seeing chances going wide.
However, Pennar took the lead when a perfectly weighted pass found Raymond Low and although both Ben Field-Thomas and Lewis Hurlow blocked his first attempt, Low maintained his balance and composure to sidefoot the ball home.
Tenby had a couple of half chances to level the match, but the visitors went into the break a goal up and the wind advantage in the second half.
The home side need a quick goal to prevent the game from running away from them and that's exactly what they got, when Christopher set up Robson to fire past the 'keeper.
The Seasiders then rocked the Robins when, less than five minutes later, a good passing movement involving Lloyd Wilson, Christopher and Robson saw the latter nudge the home side into a well deserved lead.
The game went a little stale after that, but then opened up again when David Otton found space in midfield to run at the visiting defence. After beating two defenders, Otton was confronted with an advancing 'keeper who just managed to take sufficient pace off the ball, but couldn't prevent it continuing goalward. Everyone held their breath as they watched the ball creep to the line, only for it to be superbly cleared away with inches to spare.
Pennar saw this as a wake-up call and put the Seasiders under immense pressure during the last 15 minutes. The Robins' Hughes saw an effort hit the crossbar and Low had a goal disallowed for offside.
Tenby held on to their lead thanks to stout defending from Sion Jenkins, Ben Field-Thomas, Darren Taylor, Hurlow and especially Dan Cope.
Thanks to referee Alan Sykes and to Hillings Hardware for sponsoring the match balls.
Tenby team: L. Hurlow, S. Jenkins, D. Taylor, D. Cope, B. Field-Thomas, P. Broadhurst, L. Wilson, D. Otton, B. Tasker, J. Christopher, L. Robson, S. Phillips, M. Birch, J. Worley.