Isabella, a boarder from Scone, swam personal best times to set records in the under 13s girls butterfly, backstroke and breaststroke and the 100m freestyle.

She also knocked more than 25 seconds off the previous best time for the sub junior girls 200m individual medley (2:48:55) and slashed 23 seconds from the sub junior girls 200m freestyle (2:24:25). Isabella also contributed to Tyrrell House's new record for the Open Girls Freestyle relay.

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Jordie, of Armidale, set new benchmarks in the under 12s 50m butterfly, freestyle, backstroke and breaststroke, and the 100m freestyle.

Isabella, who was named the sub-junior girls champion, has competed at state and country NSW levels in the past, representing both PSSA and Scone Swimming Club.

Although she is now living away from home, she has every confidence her training regime can continue.

"It's just amazing being here. Being a boarder at TAS means it's only a 30 second walk from my dorm down to the school's indoor pool where I'm training a few times a week with my new coach James Harwood, not having to get in a car and drive is just so good."

Harwood has also coached Jordie for some years.

Others to make their mark in the record books this year were Eliza Ward in the girls 18s and over 50m freestyle, 50m backstroke and the under 18s 100m freestyle, and Prudence Black in the girls under 15s 100m freestyle.

TAS Director of Co-Curricular Huon Barrett said the strong individual performances were only one part of the carnival's success.

"The real measure is the way our students engaged with the championships. The strong focus on mass participation, both in the pool and in the inter-house war cries competition, was wonderful to see and says so much about the TAS community," he said.