Maddie and Brodie Coombes represented Swimming Gunnedah at the recent Glen Innes Redfins short-course carnival.
Maddie competed in six events and secured a medal in all of them.
She brought home one gold, four silvers and a bronze.
Maddie managed an improvement of 2.62 seconds in the 200m freestyle, where she finished second.
The promising 15-year-old won the 50m freestyle, with second place in the 100m backstroke, freestyle and butterfly.
A third place in the 50m backstroke rounded out her day.
Younger brother Brodie continued his improvement and although not among the medals, his personal best times were a great achievement.
The 11-year-old finished a frustrating fourth in the breaststroke but managed to slash 3.39 seconds from his entry time. Brodie also eclipsed his best time by 4.27 seconds in the 100m freestyle and shaved 1.5 seconds from his best in butterfly.
A lapse in concentration denied the youngster a bronze medal in the 100m breaststroke where he clipped an amazing 10 seconds from his entry time but in his excitement, he hit the wall in a non-simultaneous touch.
The north-west summer carnival circuit begins at Narrabri on November 12, followed by Scully Park on November 19.
Swimming Gunnedah membership fees are due for the 2017/2018 with registration days on October 9 and 16 from 4pm to 5.30pm. All membership needs to be finalised by October 20.