In beating Kilgetty by a comfortable 6-1 margin, the Bluebirds maintained their unbeaten run to the start of the season, having won three and drawn the other.
Richie Adams was the star of the show as he dominated the game to score five, with Justin Blewitt grabbing the other. Mike Beynon scored the only goal for the home side.
Narberth's victory was their second in a row after they defeated Neyland at home last Saturday. Adams was at it again for the homesters as he slotted home a penalty to go alongside a goal by Ashley Williams as they defeated Neyland 2-1.
Kilgetty didn't fare so well as they lost 5-0 away at Haverfordwest County.
Tenby remain unbeaten, too, after they beat Monkton Swifts 4-2 at home during their midweek game.
Daryl Mansbridge scored twice for the Seasiders, with Jordan Richards and Marcus Lyons netting the others in another dominant display.
They fared even better over the weekend with a whopping 5-0 victory at home against Clarbeston Road.
Mansbridge scored one of the goals against the visitors, with Decla Carroll, Paul Jarvis, Tom Merring and Richards hitting the other goals.
In Division Two, Carew gained a 2-0 home victory over Pembroke Boro, with Richard Bullock and Ian Sefton getting the goals, while Pendine suffered yet another defeat as they lost 4-0 away at Hundleton.
Saundersfoot lost 2-1 away at Milford United, while St. Clears lost their first game of the season since being promoted as Haverfordwest Cricket Club put them to the sword, winning 4-1. Steve Trivet grabbed the solitary goal for the home side.
In Division Three, a Mike Ryder goal helped Manorbier United secure a share of the points away at Broad Haven, while Narberth Seconds gave a valiant display away at Lamphey before going down 4-2.
Tony Evans and Mark O'Sullivan helped the Bluebirds' second string draw level at the break, but they ran out of steam in the second as the home side pulled ahead.
In Division Four, Saundersfoot Seconds ran out 1-0 winners at home against Milford United, with Scott Davidson getting the goal, while St. Florence won a ding dong battle against Tenby Seconds 4-3 at home.
In a pulsating game, Ashley Smith scored twice for the home side, with John McKee and Ben Blake scoring the others, while Tenby's goals came from an own goal, James Howes and Sam Christopher.
Meanwhile, Carew Seconds had a torrid time away at West Dragons, losing 6-0.
There were a couple of games played in Division Five on Tuesday, with Kilgetty Seconds losing 2-1 away at Pendine reserves. Steven Jones and Wesley Reynolds scored the goals for the home team, with Rob Beynon grabbing one for the visitors.
It was the third goal in two games for Beynon as his brace together with a George Wright goal enabled his team to give a decent show against their counterparts from Hundleton over the weekend, despite losing 6-3.
Lawrenny Seconds lost 3-0 away at Fishguard Sports on Saturday, yet reversed this result with a 2-1 win over St. Clears on Tuesday.
In turn, St. Clears' fortunes were reversed after their weekend showing after they beat Pembroke Boro 5-2 away from home.
A brace by Simon Bancroft gave them a head start, followed by scores from Nigel Pearce, Rob Morgan and Guy Williams in a fantastic display from the Saints.