Mason Blackwell-Jones was the toast of Tudno after plundering a 92nd minute decider at Nantporth Stadium on Saturday.
Declan Williams handed Nantlle a 10th minute lead, but Ethan Roberts levelled on 33 and the game was in the balance right to the end.
Hugh Jones was dismissed on 81 minutes for Vale after receiving a second yellow card.
Dion Lloyd pocketed a hat-trick as Llanrwst put eight past the Wellmen.
Ianto Roberts, Jac Parry, Cai Kearney, Jamie Turner and Sion Jones added a single goal each for the Conwy Valley side.
Jay Norbury, Connor Thomas and Harrison Doleman made the scoresheet for Town.
Nefyn hit top spot after an emphatic home success over Kinmel Bay.
Luke Allaway was a star man for the Penwaig with goals on 47, 68 and 90+1 minutes, while a Westley Hancocks OG after 56 and substitute Guto Roberts’ net-finder on 92 made up Nefyn’s nap hand.
All this after Oliver Gray had scored first for Kinmel with 16 minutes on the clock.
Tomi Llywelyn’s tremendous hat-trick with goals on 38, 43 and 83 minutes guided Llanrug into the league cup final.
Pwllheli’s responses came from Cai Tate on 21 minutes and Iwan Roberts-Jones in first half added time.
Tate was red-carded in the 89th minute.
Peter Jones’ 41st minute goal was enough for St Asaph to progress to the final where they will meet Llanrug.
Saints had David Wallis sent off for a second yellow card on 78 minutes, but the 10 men held on for the win.
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