North Shore swimmer Glenn Snyders ensured the record blitz continued on the fourth night of heats at the youth and open championships in Christchurch last night.
The 19-year-old broke his New Zealand record in the heats of the 100m breaststroke at the QE2 Aquatic Centre.
Snyders clocked 1m01.80s, to go under his previous mark by 1/10th of a second which he set last week at the world championships in Melbourne.
He also finished as top qualifier ahead of the British record-holder Darren Mews who edged Snyders in the 200m final.
The pair are set to clash in the preliminary final on the penultimate day of the championships this morning.
Snyder's effort followed Corney Swanepoel and Cameron Gibson setting more records in the morning session.
Swanepoel, 21, who broke his own New Zealand record for the 50m butterfly in the heats on Thursday night, lowered it again in the preliminary final yesterday morning.
Swanepoel sliced two-hundredths of a second off the record then reduced it by another seven-hundredths to 23.67s, a time that would have placed him seventh in the final at the world championships last week.
The final will be this morning.
Gibson made it three straight New Zealand records in the 50m freestyle, lowering the mark again to a brilliant 22.85s to win the final from Swanepoel.
Gibson, now based in the specialist sprint programme in Bath, England, has reduced the national record more than three-tenths of a second during the championships.
Moss Burmester, Melissa Ingram, Dean Kent, Snyders and Helen Norfolk all won titles with the other two won by Natalie Wiegersma and Kurt Bassett.
Burmester dominated the 400m freestyle winning comfortably in 3m 55.68s from Shane Patience (Waves, Dunedin) while Ingram was also well clear in winning the 200m backstroke in 2m 14.41s from clubmate Penny Marshall.
