Cambridge - Grant Roelofsen led the way for South Africa under-19 with 96 not out as the visitors ended 268 for four on day one of the first Youth Test against England at Cambridge on Friday.
The South Africans won the toss and decided to bat first.
Ryan Rickleton (76) and Roelofsen recovered with an 87-run, fourth-wicket stand after South Africa fell to 101 for three.
Opening batsman Matthew Christensen lost his wicket at the start of the ninth over when he was caught behind off Matthew Fisher (1/48), for just seven runs.
The second-wicket partnership (16 runs) did not go so smoothly either, as Marques Ackerman was trapped lbw for 11 by Josh Shaw (1/57) just eight overs later.
Janneman Malan (31), along with Rickleton, helped South Africa safely past the hundred mark. Malan, though, soon departed, dismissed in the 40th over by Luke Wood (1/35). Their partnership added 65 runs for the third wicket.
Rickleton was then joined by Roelofsen as the pair kept the scoring rate up.
England's Ed Barnard (1/23) struck, to remove Rickleton with the score on 188 in the 76th over.
Skipper Sibonelo Makhanya (37 not out) walked out to the middle at the back end of the day, adding 80 more runs with Roelofsen by close of play.