SHARKS completed a fine season by taking out the men and women's A grade premierships at Albury Swim Centre on Sunday.
While they entered both deciders as favourites, the competition heavyweight was forced to work over-time to defeat Pool Pirates Bones 11-8 in the women and Albury 10-9 in the men.
Women's coach Tony Close paid tribute to his players' professional attitude.
"Our defence was spot on today," Klose said.
"Brooke Dickie, Sally Lefoe and Darcy Millett were outstanding in defence and, as usual, Leah Dodd steps up another notch when we are going into attack.
"The girls stuck to the game plan and we didn't panic when it got back to a goal a few times.
"Full credit to Pool Pirates though, it was a great game."
Lefoe and Dodd were fine contributors for Sharks, scoring three goals each.
Pool Pirates Bones' Sam O'Connell was effective with three goals while Mia Duryea capped off a big sporting weekend with two.
"A lot of it is attitude," Klose said.
"These girls spend the off-season training and doing representative stuff."
Sharks coach Shannon Gould played a key role in his side holding off Albury Tigers while Nick Campbell also turned in a good performance.
Campbell scored the matchwinning goal with 90 seconds left on the clock.
Jimmy Scammell provided plenty of leadership for his side and was particularly damaging in the third quarter.
"We had to dig deep," Gould said.
"I thought Albury played smart water polo and played to our weaknesses.
"Our depth was probably telling in the end."
Meanwhile, Ben Douglass won the association's best and fairest at the league presentation, Gould took out best in final, Trent Remington was highest scorer and Steve Sloan collected best goalkeeper.
In the women, Dodd was named best and fairest and highest goalscorer, Sally Lefoe took out best in final and Elyse Boyer won best goalkeeper.