Most 300's in Tasmania - Ash Riley with 12 or 13...
The highest 3-Game series in Tasmania as far as I know is Ashley Riley with 837 up the Coast (Burnie I think) sometime in the mid 1990's.
The most 800-series shot by an individual player in Tasmania up until a few years ago was 3 by Ashley Riley - all up on the Coast.
I'm not sure if he's shot any more since, maybe someone from up there would be able to tell you.
The first 300 ever shot in Tasmania was by the then 17-year old Paul Lucock in the old Premier League at Moonah on 2nd August 1988.
Lucock was also the first Junior to shoot 300 in Tasmania with that game.
The first 300 ever shot by a female in Tasmania was by the then 37-year old Sally Golding in Birds League at Moonah on 23rd November 1992, throwing an 11lb Pink AMF Strikeline backup style.
The oldest 300-shooter in Tasmania would be Ray Tilla who was 65 when he shot his perfect game in Centre League at Moonah on 30th June 2006.
As for the youngest 300-shooter in Tasmania, I'm not exactly sure.
It would be a toss-up between Matt Burtt, Sarah Hyland (Peck), Nathan Arrowsmith, Nigel Hatton, Paul Lucock and probably even Matty Riley or Trent Pierce.
Lucock and Burtt were both 17, Sarah was about the same age, not sure about the others.
No doubt someone will be able to confirm the ones I can't remember.