The leading opposition party, the democratic Alliance (DA) to put, therefore, slightly from 22 to nearly 24 percent of the vote.
While the ANC will win at the national level, the governing party is at risk of losing control of South Africa's economic heartland, the province of Gauteng, where Johannesburg and Pretoria are located.
"I think everyone will spin this as some sort of victory, but the support for the ANC is softer across all the nine provinces", said Daniel Silke, the director of Political Futures Consultancy in Cape Town. They are monitoring the pre-election processes and the elections themselves.
Preliminary results showed that the ANC captured nearly 58 per cent of the votes, leaving far behind the second biggest party - the Democratic Alliance which garnered more than 22 per cent of the votes.
The ANC's reputation was badly sullied under Zuma.
The ANC has won every parliamentary election since 1994 but saw its share of the vote fall from a high of more than 69 per cent in 2004 to 62 per cent in 2014.
Most opinion surveys suggest the ANC will secure almost 60 percent of the vote on Wednesday, thanks to the Ramaphosa effect and a weak and fragmented opposition.
Chapter Two Teaser Trailer Reaction & Review
You'll be able to hide behind your hands during its scariest scenes when it hits theaters on September 6. Finally, the trailer ends with the return of Pennywise's clown form in all its horrifying glory.
Forty-eight parties contested the elections - a record number.
The small but white-led FF+ party has slipped behind the Inkatha Freedom Party of Mangosuthu Buthelezi into fifth place, with a mere two percent support of the vote.
The party has been confronted by deepening public anger over its failure to tackle poverty and inequality in post-apartheid South Africa.
From a story back in April on BusinessTech, covering a report by Government Performance Index for 2019, from think-tank Good Governance Africa (GGA) - South Africa's best and worst-run municipalities and who governs them.
"(We) liberated this country so we would have expected more", said ANC spokesman Dakota Legoete. "(But) in 2014 we did not have 48 parties. now we have 48 parties, 47 of them are competing for the jugular vein of the ANC".
The leader of South Africa's main opposition party has cast his ballot in Dobsonville, a part of Soweto, Johannesburg's largest black township.
Many young South Africans chose not to participate in Wednesday's elections.
Malema said the EFF would grow the economy in favor of black Africans and the youth by doubling child grants, offering free university education and nationalizing key industries.
"In the next election there will not be any outright winner.so we are going to enter the era of coalitions before there's another big party that can emerge", said EFF chairman Dali Mpofu.
On Monday, special votes were cast and continued yesterday with the main voting day being today.