The Gerringong-Jamberoo bowlers will be chasing a boilover against Oak Flats, while outright points are up for grabs in the other three games in South Coast cricket heading into this afternoon's second day of round 10.

Gerringong-Jamberoo had their best batting day of the season on day one against the Rats, posting 9-271, with the home side facing just one over (0-0).

Dan Jones smashed a brilliant 107 batting at No 7 for the Jets, supported by Liam Turner (54) and Scott Harris (41), after the visitors rallied from 4-43.

Oak Flats have made some big scores already this season and need to bat well again or face losing top spot.

At Tom Willoughby Oval, fifth-placed Albion Park resume at 5-124, having already taken first innings points from second-placed Shellharbour (106).

Rob Monaghan took 5-52 for the Park against his former club, while Graeme Smith will resume on an unbeaten 38 and will be the key figure for both clubs.

Shellharbour skipper Ben Mitchell lamented some poor batting from his team on day one, and they need some quick wickets to get themselves back in the contest.

Meantime, Mick Perry and Allen Sullivan hammered centuries to put Kookas on the verge of an outright win against bottom club The Rail at Oakleigh Park.

Perry smashed an unbeaten 135 and Sullivan made 131 as the home side declared at 4-317 off just 47.3 overs. The Rail finished the first day at 9-85.

Finally, Lake Illawarra (2-198) have Kiama (107) on the ropes at Howard Fowles Oval.

Lakers opener Kerrod White belted 125, with Scott Ulcigrai to resume unbeaten on 49.

Ladder (before round 10): Oak Flats 98; Shellharbour 94; Lake Illawarra 83, Kookas 83; Albion Park 80; Kiama 55, Gerringong-Jamberoo 55; The Rail 41.