The 50m breaststroke heats saw Taylah Mawson (Carterton) 23rd fastest in the girls 14 years division in 39.49s, Tobias 17th in the boys 14 years in 32.67s and Hammond 10th in the boys 16 years in 29.92s.
Bella Biggs (Carterton) was 20th fastest in the heats of the girls 12 and 13 years 200m backstroke in 2m 40.79 and Ben Ruback (Masterton) was 14th fastest in the 200m butterfly for boys 16 years in 2m 23.22s.
For former Masterton swimmer Isaac Foote, now with the Wellington-based Capital club, the first day action brought rich rewards.
He won the 200m individual medley title in the boys 17-18 years division in 2m 10.29s after qualifying in eighth position and he was also second in the 200m butterfly final in 2m 5.99s.
Meanwhile, there was some keen competition at the Genesis Recreation Pool in Masterton on Monday as some of the top youngsters in the Masterton district did battle for their respective schools. Several excellent times were returned in front of a sizeable and vocal crowd of supporters.