South Africa stormed to another one-two in the 200m final on Sunday, though 100m medallists Retshidisitswe Mlenga and Tshenolo Lemao swapped positions, closing out the nation's dominance in the boys' short-sprint events at the IAAF World U18 Championships Nairobi 2017.
It’s the first – and last – time that one nation has managed a 1-2 in both the 100m and 200m at the IAAF World U18 Championships.
Mlenga, who had taken silver in the 100m earlier in the week, won the gold medal in 21.03.
"I came in very focused, having made a mistake in the 100m final, which is my favourite race," Mlenga said.
"I followed my coach's instructions and I'm very happy to have won a gold medal."
Lemao, the 100m champion, covered the half-lap distance in 21.12 to take second place, clipping 0.06 off his personal best.
After settling for eighth in the 100m final, Germany's Luis Brandner earned the bronze medal in 21.23 to equal his career record.
Wesley Botton for the IAAF