Yellow won gold in 400m freestyle men, 50m (butterfly stroke), 200 (breaststroke), 200 (individual medley), 50m (freestyle) and 200m freestyle events.
Yellow also came second in 100m backstroke event.
In the female event, Esther Omoseyin, representing Oriade Local Council Development Authority (LCDA), won gold in three swimming categories.
Omoseyin won gold in 400m freestyle event, 50m (butterfly) and 200m (freestyle).
In the secondary school category, Faith John from Ipakodo Grammar School, dominated the female categories by winning gold in 400m freestyle, 50m (butterfly), 200 (individual medley) and 200m freestyle event.
Faith also came second in 200m backstroke, 50m (freestyle), 100m (butterfly) and came third in 100m backstroke events.
Bolaji took silver in 50m butterfly and bronze in 400m and 200m butterfly stroke events.