New Zealand's Lauren Boyle finished sixth in the final of the 400 metre freestyle on the opening day of the FINA world swimming championships in Shanghai after slashing her own national record in the morning heats and going under her old record again in the final.
Compatriot Glenn Snyders also set a significant record, becoming the first New Zealander breaststroker to go under the one minute barrier to be second fastest in heats of the 100 metre heats.
He was up with his season's best in the semi-final but could not replicate his morning effort to miss out on a place in the final by just 33/100ths of a second.
Sophia Batchelor was 39th fastest in heats of the 100 metre butterfly and Dylan Dunlop-Barrett 30th in the 400 metre freestyle, in their first swims in the world long course championships.
Teammate Daniel Bell was 30th fastest just outside his best in heats of the 50 metre butterfly, a warm-up swim for his backstroke later in the meet.
The women's 4x100m freestyle relay team, without star sprinter Hayley Palmer who withdrew earlier in the week with illness, were 14th fastest in their heat.
