South Africa “A” will resume on 546 for 6 on day-3 of the first 4-day match against the West Indies “A” at Darren Sammy stadium.
Captain Marques Ackerman made 209, Jordan Hermann 52, Jason Smith 56, while Rivaldo Moonsamy is unbeaten on 68.
Ojay Shields has so far taken two wickets.
The Windies were bowled out for 240 in their first innings.