The provincial body said 20 people, including five international participants, had been charged with offences related to rule 240.1 after allegedly failing to complete the full official course at the annual 89km race.
Of the 20, six runners had provided “ample evidence” that they had not cheated and were cleared, with the race organisers admitting fault.
“The runners had bailed out and waited for the official bailers’ bus which picked them up but, instead of taking them off the course, dropped them on the course inside the fenced area which forced them to walk across the finish line,” KZNA said in a statement.