Zuma, stumbled over his words during the closing address at the IEC announcements ceremony in Pretoria on Saturday night.
He faced EFF protesters who stood holding placards referring to his rape accuser, known as Khwezi.
Before he had begun speaking, EFF members who had been seated in the front row, stood and walked out of the event, which was attended by international dignitaries.
Their protest gesture was overshadowed as four young women dressed in black rose and faced the audience.
They held up placards that together read: “I am 1 in 3, #10 years later, Khanga, Remember Khwezi.”
However, Sports Minister Fikile Mbalula immediately posted a picture of one of the women protesters Simamkele Dlakavu in full EFF regalia.
Mbalula accused her of using women as tools to settle political scores.
When Zuma had finished speaking, IEC deputy chairman Terry Tselane apologised to him for the disruption.
He said the women’s protest had taken the IEC by surprise. He also appealed to security staff to deal with the situation in a “sensitive manner”.
Later the IEC declared the elections free, fair and officially over, with the ANC winning the Joburg metro with 44.55 percent. The DA secured 38.37 percent and the EFF 11.09 percent.