Cwmbran Celtic, in third, were 2-1 home victors over Pontypridd Town.
Louis Feeley and Callum Wakeham were the goalscorers for Celtic who are six points off the summit with a game in hand. Luke Gullick got the goal for visitors Pontypridd who are bottom of the pile.
Ashley Curtis and Ryan Hurlow grabbed the goals for Cwmamman United in a 2-1 home win over Llantwit Major – for whom Christian Jones scored.
Briton Ferry Llansawel produced a stirring second half comeback to beat Port Talbot Town 3-2.
Morgan Thomas and Keane Watts had the Steelmen 2-0 up at half time but two second half goals from Tyler Brock and another from Luke Jones secured a memorable win for Ferry.