Merrion stay top of the table thanks to an emphatic win over The Hills, while there were also wins for Leinster, Pembroke and North County.
Half centuries for Nic Pretorius and Dayan Singh, plus 40 from opener Mark Donegan saw The Hills post 240 for 6 at home to the leaders.
It looked a decent total, but proved woefully inadequate as Dom Joyce hit an unbeaten 109 in 140 balls (9 fours, 3 sixes) to guide Merrion to a 9-wicket win.
He added 125 for the first wicket with Lakhotia, and an unbroken 117 for the second with John Anderson, both of whom made 53 as victory was achieved with 8 overs to spare.
North County stay in contention thanks to a 100-run win at Phoenix.
Malcolm Nofal was the star of the show, taking 5 for 16 as Phoenix were dismissed for 165 chasing County's 265.
Nofal also scored a run a ball 61, adding 113 in 86 balls with opener Jamie Grassi, who clubbed 14 fours and 2 sixes in 91 from just 76 balls to spearhead the win.
Pembroke won an ill-tempered affair at Castle Avenue as they beat Clontarf by five wickets.
Fiachra Tucker claimed another five wicket haul as Clontarf were dismissed for 191 - half centuries for Waqar Azmat and Declan Gallagher.
Pembroke overcame the loss of early wickets to get over the line thanks primarily to half centuries of their own from Lorcan Tucker (69) and Andrew Balbirnie (58).
Leinster secured a welcome win over an under-strength YMCA who were dismissed for 138, with only Sam Murphy (24) and Tim Tector (20) getting starts.
Joe Carroll (46) and George Dockrell (36*) steered the successful six-wicket run chase.
In Division Two, Malahide stay top after their road trip to Cork was rewarded with a five-wicket win.
Matt Ford's excellent season continued as he hit 11 fours and 3 sixes in a top score of 80 in 71 balls, sharing a 5th wicket stand of 103 with Fintan McAllister (53*) as the village side chased 196.
In the other game, there was no sign of any demons in the pitch as 653 runs were scored between Balbriggan and Rush.
Timycen Maruma hit 125 and Nathan Rooney 63 in a home side total of 326 - Stephen Doheny taking 5 for 50.
Doheny then made a quite sublime 142 as Rush made light of what looked a daunting chase.
Former Irish international Conor Armstrong and surely a future one Neil Rock both made half centuries in a game which may have great significance in the promotion race.
LEINSTER SENIOR SCOREBOARD
YMCA (2) lost to Leinster (23) by 6 wickets.
YMCA 138 (48.0 overs, B Azhar 3-21, J Carroll 2-25, A Clough 2-25)
Leinster 141-4 (29.3 overs, J Carroll 46, G Dockrell 36*, P Flanagan 2-22)
The Hills (0) lost to Merrion (25) by 9 wickets.
The Hills 240-6 (50.0 overs, N Pretorius 69, D Singh 51, M Donegan 40, T Stanton 2-35, P Mehta 2-41)
Merrion 242-1 (42.0 overs, D Joyce 109*, B Lakhotia 53, J Anderson 53*)
Clontarf (2) lost to Pembroke (23) by 5 wickets.
Clontarf 191 (47.3 overs, W Azmat 71, D Gallagher 55, F Tucker 5-40, A Ridley 2-47)
Pembroke 194-5 (41.0 overs, L Tucker 69, A Balbirnie 58, S Gupta 26*, J Morrissey 2-13)
Phoenix (0) lost to North County (25) by 100 runs.
North County 265 (44.0 overs, J Grassi 91, M Nofal 61, D Vernon 4-70, G Millar 2-20)
Phoenix 165 (36.3 overs, F Coutts 34, M Nofal 5-16, A Coughlan 2-43)
Cork County (2) lost to Malahide (23) by 5 wickets.
Cork County 196 (47.4 overs, J Benton 39, R Durity 33, J Newland 3-37, P Chase 2-36)
Malahide 197-5 (45.3 overs, M Ford 80, F McAllister 53*, J Newland 27*, D Carey 4-60)
Balbriggan (2) lost to Rush (23) by 6 wickets.
Balbriggan 326 (48.5 overs, T Maruma 125, N Rooney 63, S Doheny 5-50, A Neary 2-56, A Eastwood 2-64)
Rush 327-4 (47.1 overs, S Doheny 142, C Armstrong 62, N Rock 57)