Complex sentence: Mans won the South African Amateur Snooker Championship in 1960, the only occasion in which he competed in the event and took the South African Professional Title from Freddie Van Rensberg in 1965.
Split into simpler sentences: Mans won the South African Amateur Snooker Championship in 1960, the only occasion in which he competed in the event. He then turned professional and took the South African Professional Title from Freddie Van Rensberg in 1965.