South Australian Kyle Chalmers and Melbourne-based Nicholas Groenewald stole the show on the penultimate night of the 2012 Australian Age Swimming Championships at the Brisbane Aquatic Centre as the extended their joint tally of honours to nine golds.

Originally from Port Lincoln but now based in Adelaide, 13-year-old Chalmers clocked 24.00sec in the 12-13yr boys 50m freestyle to win his fourth title in a fourth age record. Coached by Sean Curtis at Norwood Swim Club, Chalmers shaved 0.35sec off the record that had been held by Te Haumi Maxwell since 2008. Chalmers had already won the 100 and 200m freestyle and 100m butterfly crowns.

Nunawading's Nicholas Groenewald, coached by Dean Bryant, broke his own 57.99sec record in the 14yrs 100m backstroke with a 57.56 effort more than 2sec ahead of the best of the rest. Victory came in his second age record of the meet after he set a new standard in the 200m medley on the first day of action. 

In other action, the 12-13yr girl’s 50m freestyle went to Queensland's Shayna Jack, 13, whose 25.50sec trump fell just 0.15sec shy of the age record held by Yolane Kukla.