Impressive tons from Joshua Richards and Reeza Hendricks helped the Central Gauteng Lions pile on the runs against the KZN Dolphins in Durban on Thursday.
Richards made 151 off 250 balls and Hendricks 136 off 211, sharing a 258-run second-wicket partnership.
The visitors were 332-3 at stumps.
The Dolphins’ Ottniel Baartman claimed two of the three wickets to fall.
In Gqeberha, the EP Warriors posted 235-8 against the Boland Rocks, thanks to Lesiba Ngoepe (75 off 95) and Diego Rosier (58* off 104).
Rocks leg-spinner Shaun von Berg took 5-75.
In Bloemfontein, Western Province amassed 382-5 against the Free State Knights with David Bedingham scoring 161 and Tony de Zorzi 97.
Former SA U19 bowler Gerald Coetzee claimed 3-77.
In Potchefstroom, the Northerns Titans spinner Simon Harmer took 5-20 to help bowl out the North West Dragons for 147.
The Titans went on to post 118-3, with Heinrich Klaasen making 53* and Sibonelo Makhanya 33*.
In Division Two, South Western Districts ended day one of their match against the KZN Inland Tuskers on 291-8. Blayde Capell top-scored with 80.
A 132-run partnership between Jonathan Vandiar (84*) and Aubrey Swanepoel (79*) inspired the Northern Cape Heat to a commanding 315-3 against the Eastern Storm.
An undefeated 113* off 142 balls from Benjamin van Niekerk had the Mpumalanga Rhinos posting 216 against the Limpopo Impalas, who were 82-2 at stumps.
Division One:
Central Gauteng Lions lead KZN Dolphins by 332 runs
Lions: 332-3 after 96 overs; J Richards 151 (251), R Hendricks 136 (210); O Baartman 2-52, E Bosch 1-16
EP Warriors lead Boland Rocks by 235 runs
Warriors: 235-8 after 74 overs; L Ngoepe 75 (95), D Rosier 58* (104); S von Berg 5-75, H Viljoen 2-59
Western Province lead Free State Knights by 382 runs
WP: 382-5 after 96 overs; D Bedingham 161* (218), T de Zorzi 97 (190); G. Coetzee 3-77
Northerns Titans trail North West Dragons by 29 runs
Dragons: 147 after 45.2 overs; S Pillay 34 (81), N Mvelase 24 (42); S Harmer 5-50, L Williams 3-43
Titans: 118-3 after 30.3 overs; H Klaasen 53* (63), S Makhanya 33* (55); D Potgieter 1-23, D Jansen 1-27
Division Two:
South Western Districts lead KZN Inland Tuskers by 215 runs
SWD: 291-8 after B Capell 80 (68), L du Plooy 54 (134); M Erlank 3-57, T Koekemoer 2-41
Northern Cape Heat lead Eastern Storm by 315 runs
Heat: 315-3 after 83 overs; J Vandiar 84* (37), A Swanepoel 79* (85); G Thomson 1-1, N Nxumalo 1-45
Mpumalanga Rhinos lead Limpopo Impalas by 134 runs
Rhinos: 216 after 73.4 overs; B van Niekerk 113 (142), L Peters 45 (99); D Radebe 5-41, A Mokgoloboto 2-30
Impalas: 82-2 after 21 overs; T Hobson 37* (54), M Nofal 19* (40); B Xenxe 1-30