The 26-year-old achieved this status by reaching the third round of the Australian Open, at Melbourne Park, before losing to eighth-ranked Viktoria Azarenko.
Last year, Scheepers reached the fourth round of the French Open singles, something no active South African player - male or female - has achieved in any Grand Slam event.
At the moment, she is ranked 107th women's singles player, but is expected to come close to bettering her career-best ranking of 84th when the latest ratings are announced next week.
The one thing Harrismith-born Scheepers has not achieved is recognition in South Africa.
She said she decided to base herself in Houston, in the United States, when it became clear that her tennis career would "go nowhere" if she remained in South Africa.
She took a calculated decision to concentrate on ITF tournaments, of which she has won 12, instead of battling to make the main draws on the high-profile WTA World Circuit.
As a result, her WTA tournament record is nothing to shout about.
However, she has proved her mettle in Grand Slam tournaments, which is where it matters.