Leaders Sully Centurions turned in another telling all-round display to account for Pontarddulais by 55 runs at Burnham Avenue, writes Tony Poole.
The inaugural league champions made it five wins on the trot, scoring 216-6 and dismissing Bont for 161, but still only head closest challengers Mumbles by two points.
Four batsmen came up with the goods, and once more Glamorgan paceman Alex Jones (56no) led the way.
Terryn Frey weighed in with an equally important 53 while Daniel Rowe contributed 42 and Morgan Hodges 31.
Jon Denning with 3-67 kept Bont in the frame, but they weren’t in focus at either 54-5 or 92-8.
But former England paceman Simon Jones then opened his shoulders, hitting an unbeaten 53, and figured in a half-century stand with Denning (39) out of 161.
Michael O’Shea did the main damage with figures of 4-23 while Dave Eskins claimed 2-15 and paceman Jones 2-50.
But Cardiff lost ground in the title race after letting Ynysygerwn off the hook during a four-wicket loss at The Diamond Ground.
Cardiff captain Dave Kirtley won the toss and chose to bat, and he chipped in with 41 during the main stand of 75 for the second wicket with top scorer Adam Miles (67).
The remainder was ordinary in 176-9 with ex-Sussex paceman Matt Hobden taking 3-39 and young Geraint Bowden 2-18.
Cardiff then moved into the driving seat, applying the brakes and sending the Neath village side crashing towards 28-4.
But ex-Glamorgan all-rounder Richard Grant retaliated with a match-winning 82, posting 90 for the fifth wicket with John Glover (21).
That swayed issue, and Ynys moved on to 180-6 off 45 overs with Mike Reed capturing 3-31 and Ruaidhri Smith 2-30.
Bridgend Town gained a surprisingly easy passage at Newport, triumphing by nine wickets.
Once more young Town spinners Tom Dalton (2-27) and Sam Pearce (2-42) turned a game on its head after Newport moved on to 90-2 without too much bother.
Will Bragg (43) was the main contributor in a Newport score of 164-9, but it was soon overshadowed by Town openers Brad Wadlan and Grant Humphries.
While Wadlan clipped 10 fours in an undefeated 85, ex-Southerndown man Humphries (63) found the ropes nine times.
They figured in a stand worth 143 with fifth-change man Gareth Thomas (1-14) the lone Newport wicket-taker.
In other games, Port Talbot Town beat bottom club Swansea at home by eight wickets while second-placed Mumbles got the better of a drawn encounter with Ammanford at Marespool.
Thomas, Carroll Glamorgan and Monmouthshire Cricket League
With other teams beating each other every week, Panteg took advantage with a convincing victory over visitors Pontypridd to stretch their lead at the top of Division One of the Thomas, Carroll Glamorgan and Monmouthshire Cricket League.
Panteg piled up 281-5 in their 50 overs with Carwyn James making 88, Lloyd Smith out one short of a century and David Harrison 44 not out.
For Ponty, Lee Parry was their star bowler with 2-28 from 10 overs while Noel Barrow had 2-67 off 10.
Gareth Hughes (54), his brother Jon (38) and Andrew Collins all threatened but Panteg always held the upper hand and got Pontypridd all out for 186.
Leg spinner Jack Mayers took 3-33 for Panteg, Chris White 2-24 and Chris Mee 2-25.
Champions Sudbrook beat second-placed Abergavenny at the Deepweir.
Micky Martin made 46 as Sudbrook reached 165-8 off their 50 overs.
For Abergavenny, Tamoor Zafar took 2-14, Asim Gillani 2-15, Mohammed Ali Bukari 2-25 and Lewis Parfitt 2-31.
It wasn’t the greatest total to defend but Sudbrook did it comfortably.
The best was James Schofield (22) as Mike Shaw took 4-24 off 10 overs and Coles 3-7 from four.
Blackwood had a welcome win over out of sorts St Fagans who were inserted and gave a much better batting display than of late in making 241-7.
Jeremy Lawlor got 39, his brother Chris 37, Mansoor Tariq 37 not out and Adarsh Aji 29. For Blackwood, Rhodri Evans took 2-26 off eight overs and Callum Herring 2-32 from 10.
Chepstow opted to bat against Tondu at Bryn Road and set a target of 201-7 in which Nick Folland scored 57, Malith Madurasinghe 30 and Tuhin Gavand 29.
For the Waterwheelers, Brian Thomas deserved better then 0-17 from his 10 overs while Jon Bussey took 2-44 off 10 and Richard Ready 2-50 from 10.
Jamie Williamson (36) gave his side a steady start but it was Ready, going in at number four, who steered them to a four wicket win with an unbeaten 70.
Chepstow’s bowling was: David Monk 7-0-32-0, Luke Watson 10-1-44-2, Malith Madurasinghe 7.1-0-32-0,
Mitchell Harris 10-0-40-1, David Teague 10-1-24-1 and Tuhin Gavand 3-0-23-1.
Struggling Rogerstone were bowled out for 139 at home to Pentyrch. Andy Harris made 45 and next best was Luke Harris (17) as Nick Kent took 2-13, Connor Brown 2-17 and Mike Grossett 2-36.
Pentyrch got the runs for the loss of four wickets with Steve Matthews making 63 and Brown 33 not out. Andy Harris had 3-16 for Rogerstone.
Visitors Penarth reached 194 all out in 47 overs at Usk with Adam Shantry getting 56 and Nick Morgan 55 as Tom Robinson returned a splendid 10-2-30-6 and Lorne Burns 10-0-36-2.
Despite being helped by 32 wides, Usk fell for 169 with Huw Wilcox scoring 52 and Neil Perrett 36.
Mike Provis had 8-1-21-4 for the Seasiders, Tom Sidford 8.4-0-35-2 and Mark Thomas 10-3-41-2.
Thomas Carroll Cricket Conference
Division One leaders Hopkinstown dismissed visitors Pentwyn for 173 in the Thomas, Carroll Welsh Club Cricket Conference.
Hopkinstown had a disastrous 2012 when they played just four matches out of a possible 18 and were relegated only to be reinstated after Blaengarw had to drop their second team so wern’t eligible to play in Division One.
In the Pentwyn innings, Sam Saunders scored 55 and Chris Wall 28. Greg Dean took 4-35 off six overs for Hopkinstown and Jordan James 2-42 off six.
Simon Pember set Hopkinstown on the road to victory with 61 not out helped by Rhys Weekes (55) and Tom Norton (30no).
Pontnewynyd moved up to second place by beating third placed Cross Keys.
Alex Barry made a magnificent 134 when Pontnewynydd went in first and Joe Matthews was 95 not out when they closed on 333-3. James Baker was the best of the Keys attack with 2-97.
Dhruv Bhatt scored 35 in the Keys reply and Graham Davey 33 but they could only manage 178-9.
Geraint Jones took 3-27 for Pontnewynydd, Rod Jones 2-27, Gareth Bustiin 2-30 and Matthews 2-56.
Abercynon held off St Fagans III for a 10 run win, batting first and reaching 220-9. Ashley Willis (51) and Robbie Savage (50) added 72 for the sixth wicket and Lloyd Boddington got 20.
Gareth Weatherall took 3-41 for the Saints, Zia Sadiq 2-38 and David Williams 2-38.
St Fagans got close as Mark Lewis made 57, Tom Field 35, David Williams 28 and Faraz Khan 23 not out but they were eventually all out for 210. Hefin Jones took 4-26 for Abercynon and Dan Hawkins 3-43.
Monkswood stunned second placed Barry Wanderers by chasing down their formidable total of 293-7.
Rob Cooper (63), Neil Blundell (35) and Ed Sherriff (33) were the pick of the Wanderers innings with Jamie Weller taking 2-43 for Monkswood, Tim Probert 2-48 and Gareth Trumper 2-68.
Mike Jones scored 100 in the Monkswood innings, Mike Watkins 40 and Haydn Simons 35 and they got the runs for the loss of seven wickets.
Abertillery reached 219-7 at Cardiff III with captain Mark Seymour getting 65 and Owen Donovan 63 not out.
Kishore Kaucherla took 7-2-27-3 for Cardiff III and Matt Preece 1-2 off five overs.
Cardiff III got the winning runs with three balls remaining thanks to a fine 106 not out from Alan Hardman and 73 from Dave Ricketts.