Central Gauteng Athletics general manager Mandla Radebe confirmed the police had been called after the men were caught by a volunteer who was selling numbers to entrants on the morning of the race.
“These guys have done this at other races, so it’s not the first time,” Radebe said.
“We don’t know how they’re doing it or where they’re getting the race numbers, but we will now wait for feedback from the police.”
Former Comrades Marathon gold medallist Elias Mabane was also believed to be involved in the long-running scam, though Radebe was unable to confirm.
“Elias was not arrested but we believe he ran away when they were caught,” Radebe said.
The 46-year-old Mabane, who secured victory at the prestigious Om Die Dam ultra-marathon in 2006, won the Johnson Crane 42km race in 2011 and 2012.