The Warrnambool Swimming Club member won six medals at the Tasmanian State Championships over the March long weekend - just one month out from the Australian Swimming Championships, held from April 7 to 12 in Adelaide. 

Christie-Crane, 18, came first in the boys' 16-18 division's 100m backstroke, 200m backstroke, 100m freestyle and 200m freestyle, while also finishing second in the 100m breaststroke and 100m individual medley.

Warrnambool sent 14 swimmers to the Tasmanian championships along with Christie-Crane, including Fergus Kelson, Tessa Lane, Holly McKenzie, Victoria McPhee, Archer Wellens, Emily Bartlett, Ingrid Cavarsan, Taylah Daffy, Todd Dymke, Will Elliott, Sarah Flaherty, Robert Gleeson and Alex Johnston. 

Gleeson got on the podium with a third-place finish in the boys' 16-18 division 200m breaststroke, while also coming fifth in the men's 200m breaststroke. 

Bartlett finished fifth in the girls' 16-18 division 100m butterfly, Johnston finished sixth in the men's 200 backstroke, with Lane coming in seventh in the girls' 16-18 100m breaststroke. 

Warrnambool Swimming Club coach Jayson Lamb, 47, said he was rapt every member achieved a new personal best time.

"As far as medals go Seb was the standout for us," he said.

"But the whole team swam exceptionally well.

"And ultimately it's just about trying to swim better than you as an individual swam before."

Cavarsan and Johnston will also represent the Warrnambool Swimming Club at the Australian Age Swimming Championships, held in Adelaide from April 15-22.