The opening Janneman Mild destroyed the fourth highest score in one day international history in South Africa when his 177 swashbuckling did not help direct tourists to a 70-run victory in Ireland in Malahide on Friday.
Malan wore 225 for the first goal with Quinton de Kock which was equally impressive (120 of 91 balls) as South Africa collected 346 for four in their 50 overs, before the Irish bowling came out of their 47.1 Overs of the Ballely.
Malan hit 16 four and six sides in his 169-ball remained folded, fell 11 running less than South African records Gary Kirsten in 188 did not come out against the United Arab Emirates at the 1996 Cricket World Cup.
Ireland was in the initial problem in the round They were the spinner of the left arm of Keshav Maharaj (2-51) took a quick goal to leave the side of the house staggered on the third.
Simi Singh (100 did not come out) scored the first century Oda, and the highest score for the Irish bat in number eight, to go with half a century for Curtis Campher born in South Africa (54).
Tabraiz Shamsi (3-46) is the choice of attack tourists, but they put another careless look on the field that saw a number of falling catches.
Ireland won the second odi with 43 Run on Tuesday after the first match was removed by rain.
The team will now oppose the Twenty20 international series three matches starting on Monday.