TNS won the Welsh Premier title for the second time in their history after beating Carmarthen Town on Wednesday.
Marc Lloyd-Williams' first half strike, his 33rd league goal of the season, was enough to clinch Ken McKenna's side the championship with two games remaining.
The victory also guarantees a Uefa Cup place for Carmarthen, who play TNS in the Welsh Cup final on Sunday, 8 May.
Defending champions Rhyl won 4-1 at Caernarfon to move four points ahead of Bangor in the race for second place.