Has been a while since this has been updated, so if there's any sessions that need to added in, let me know. The list includes locations where someone has sailed over 35 knots (2-second) and records the top three speeds over 35 knots:

Port Sorell:
46.64 James Brient (gpsteamchallenge.com.au/sailor_session/show?date=2015-01-16&team=27)
46.57 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2015-01-16&team=27)
45.87 James Brient (gpsteamchallenge.com.au/sailor_session/show?date=2014-12-30&team=27)

Stanley, East Inlet:
46.15 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2014-01-06&team=27)
45.69 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2014-01-06&team=27)
45.34 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2016-10-30&team=27)

Stanley, West Inlet:
45.42 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2021-06-07&team=27)
42.74 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2015-07-30&team=27)
42.44 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2016-07-11&team=27)

Henty River:
43.12 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2016-06-22&team=27)
42.39 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2012-04-28)
42.23 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2010-12-10&team=27)

Duck River Smithton "Cookies Run":
41.66 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2015-10-31&team=27)
40.44 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2016-03-16&team=27)
36.88 Ian Johnson (gpsteamchallenge.com.au/sailor_session/show?date=2015-10-31&team=27)

Montagu:
40.91 Izaak Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2011-05-13&team=27)
40.39 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2011-05-13&team=27)
38.94 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2011-05-13&team=27)

Marion Bay Lagoon:
40.75 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2018-08-19&team=27)
40.63 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2018-01-15&team=27)
40.63 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2018-01-15&team=27)

Pittwater West:
40.18 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-10-09&team=27)
37.97 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2013-01-04&team=27)
37.90 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-04-10&team=27)

Doran's:
40.09 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2011-04-23&team=27)
39.86 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2010-09-17&team=27)
39.01 Russel Dowd (gpsteamchallenge.com.au/sailor_session/show?date=2013-02-09&team=27)

Muddy Creek:
39.20 Izaak Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2012-06-04&team=27)

Low Head (Tamar River):
39.07 Jason Smith (gpsteamchallenge.com.au/sailor_session/show?date=2015-01-25&team=27)
37.29 Ben Flood (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2014-02-09)
36.78 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2015-11-22&team=27)

Pittwater East (the Chicken Run)
39.00 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-12-08&team=27)
38.21 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2015-10-05&team=27)
38.67 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2017-10-29&team=27)

Cremorne:
38.39 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2015-02-08&team=27)
37.98 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2014-01-07&team=27)
37.92 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2015-02-08&team=27)

Moulting Lagoon
38.29 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2015-01-31&team=27)

Great Lakes:
37.79 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2015-11-25&team=27)
37.20 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-02-14&team=27)
36.17 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2015-11-25&team=27)

Mortimer Bay:
37.21 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2018-11-03&team=27)
37.10 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2009-08-01&team=27)
35.48 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2011-09-11&team=27)

Rosevears:
37.12 Paul Tenteye (gpsteamchallenge.com.au/sailor_session/show?date=2019-01-28&team=27)
36.47 Paul Tenteye (gpsteamchallenge.com.au/sailor_session/show?date=2019-01-01&team=27)
35.01 Ben Wilson (gpsteamchallenge.com.au/sailor_session/show?date=2019-01-28&team=27)

Derwent River (North of Bridge):
36.28 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2018-06-08&team=27)
35.47 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-07-15&team=27)
35.27 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2014-07-03&team=27)

Robbins Passage (Johno's Run):
36.13 Ian Johnson (gpsteamchallenge.com.au/sailor_session/show?date=2013-01-01&team=27)

Derwent River (South of Bridge):
35.84 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2013-10-18&team=27)
35.14 Will Short (gpsteamchallenge.com.au/sailor_session/show?date=2013-05-25&team=27)

Ansons Bay:
35.67 Izaak Perkins (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2014-12-07)

Droughty Point (Goof Balls):
35.54 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2015-04-02&team=27)

A few updates:

Found a post from Izaak for West Inlet putting him into 2nd place with a 45.02, I managed a 35.37 at Rosevears and Steve had a 35.06 at Lunawanna on Bruny Island.

Port Sorell:
46.64 James Brient (gpsteamchallenge.com.au/sailor_session/show?date=2015-01-16&team=27)
46.57 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2015-01-16&team=27)
45.87 James Brient (gpsteamchallenge.com.au/sailor_session/show?date=2014-12-30&team=27)

Stanley, East Inlet:
46.15 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2014-01-06&team=27)
45.69 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2014-01-06&team=27)
45.34 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2016-10-30&team=27)

Stanley, West Inlet:
45.42 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2021-06-07&team=27)
45.02 Izaak Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2019-11-07&team=27)
42.74 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2015-07-30&team=27)

Henty River:
43.12 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2016-06-22&team=27)
42.39 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2012-04-28)
42.23 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2010-12-10&team=27)

Duck River Smithton "Cookies Run":
41.66 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2015-10-31&team=27)
40.44 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2016-03-16&team=27)
36.88 Ian Johnson (gpsteamchallenge.com.au/sailor_session/show?date=2015-10-31&team=27)

Montagu:
40.91 Izaak Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2011-05-13&team=27)
40.39 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2011-05-13&team=27)
38.94 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2011-05-13&team=27)

Pittwater West:
40.18 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-10-09&team=27)
37.97 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2013-01-04&team=27)
37.90 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-04-10&team=27)

Doran's:
40.09 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2011-04-23&team=27)
39.86 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2010-09-17&team=27)
39.01 Russel Dowd (gpsteamchallenge.com.au/sailor_session/show?date=2013-02-09&team=27)

Marion Bay Lagoon:
40.75 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2018-08-19&team=27)
40.63 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2018-01-15&team=27)
40.63 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2018-01-15&team=27)

Muddy Creek:
39.20 Izaak Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2012-06-04&team=27)

Low Head (Tamar River):
39.07 Jason Smith (gpsteamchallenge.com.au/sailor_session/show?date=2015-01-25&team=27)
37.29 Ben Flood (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2014-02-09)
36.78 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2015-11-22&team=27)

Cremorne:
38.39 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2015-02-08&team=27)
37.98 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2014-01-07&team=27)
37.92 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2015-02-08&team=27)

Moulting Lagoon
38.29 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2015-01-31&team=27)

Pittwater East (the Chicken Run)
39.00 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-12-08&team=27)
38.21 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2015-10-05&team=27)
38.67 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2017-10-29&team=27)

Great Lakes:
37.79 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2015-11-25&team=27)
37.20 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-02-14&team=27)
36.17 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2015-11-25&team=27)

Mortimer Bay:
37.21 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2018-11-03&team=27)
37.10 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2009-08-01&team=27)
35.48 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2011-09-11&team=27)

Rosevears:
37.12 Paul Tenteye (gpsteamchallenge.com.au/sailor_session/show?date=2019-01-28&team=27)
36.47 Paul Tenteye (gpsteamchallenge.com.au/sailor_session/show?date=2019-01-01&team=27)
35.37 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2021-10-09&team=27)

Derwent River (North of Bridge):
36.28 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2018-06-08&team=27)
35.47 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-07-15&team=27)
35.27 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2014-07-03&team=27)
Robbins Passage (Johno's Run):
36.13 Ian Johnson (gpsteamchallenge.com.au/sailor_session/show?date=2013-01-01&team=27)

Derwent River (South of Bridge):
35.84 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2013-10-18&team=27)
35.14 Will Short (gpsteamchallenge.com.au/sailor_session/show?date=2013-05-25&team=27)

Ansons Bay:
35.67 Izaak Perkins (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2014-12-07)

Droughty Point (Goof Balls):
35.54 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2015-04-02&team=27)

Lunawanna, Bruny Island:
35.06 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2017-02-12&team=27)

After sailing at Muddy Creek with Perks yesterday, noticed Izaak had done 39 knots there previously (was on the list) and James also sailed, so adding in his session:

Port Sorell:
46.64 James Brient (gpsteamchallenge.com.au/sailor_session/show?date=2015-01-16&team=27)
46.57 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2015-01-16&team=27)
45.87 James Brient (gpsteamchallenge.com.au/sailor_session/show?date=2014-12-30&team=27)

Stanley, East Inlet:
46.15 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2014-01-06&team=27)
45.69 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2014-01-06&team=27)
45.34 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2016-10-30&team=27)

Stanley, West Inlet:
45.42 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2021-06-07&team=27)
45.02 Izaak Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2019-11-07&team=27)
42.74 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2015-07-30&team=27)

Henty River:
43.12 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2016-06-22&team=27)
42.39 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2012-04-28)
42.23 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2010-12-10&team=27)

Duck River Smithton "Cookies Run":
41.66 Geoff Cook (gpsteamchallenge.com.au/sailor_session/show?date=2015-10-31&team=27)
40.44 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2016-03-16&team=27)
36.88 Ian Johnson (gpsteamchallenge.com.au/sailor_session/show?date=2015-10-31&team=27)

Montagu:
40.91 Izaak Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2011-05-13&team=27)
40.39 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2011-05-13&team=27)
38.94 Anthony Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2011-05-13&team=27)

Pittwater West:
40.18 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-10-09&team=27)
37.97 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2013-01-04&team=27)
37.90 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-04-10&team=27)

Doran's:
40.09 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2011-04-23&team=27)
39.86 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2010-09-17&team=27)
39.01 Russel Dowd (gpsteamchallenge.com.au/sailor_session/show?date=2013-02-09&team=27)

Marion Bay Lagoon:
40.75 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2018-08-19&team=27)
40.63 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2018-01-15&team=27)
40.63 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2018-01-15&team=27)

Muddy Creek:
39.20 Izaak Perkins (gpsteamchallenge.com.au/sailor_session/show?date=2012-06-04&team=27)
37.75 James Brient (gpsteamchallenge.com.au/sailor_session/show?date=2012-06-04&team=27)

Low Head (Tamar River):
39.07 Jason Smith (gpsteamchallenge.com.au/sailor_session/show?date=2015-01-25&team=27)
37.29 Ben Flood (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2014-02-09)
36.78 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2015-11-22&team=27)

Cremorne:
38.39 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2015-02-08&team=27)
37.98 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2014-01-07&team=27)
37.92 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2015-02-08&team=27)

Moulting Lagoon
38.29 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2015-01-31&team=27)

Pittwater East (the Chicken Run)
39.00 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-12-08&team=27)
38.21 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2015-10-05&team=27)
38.67 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2017-10-29&team=27)

Great Lakes:
37.79 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2015-11-25&team=27)
37.20 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-02-14&team=27)
36.17 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2015-11-25&team=27)

Mortimer Bay:
37.21 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2018-11-03&team=27)
37.10 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2009-08-01&team=27)
35.48 Kaleb Smith (gpsteamchallenge.com.au/sailor_session/show?date=2011-09-11&team=27)

Rosevears:
37.12 Paul Tenteye (gpsteamchallenge.com.au/sailor_session/show?date=2019-01-28&team=27)
36.47 Paul Tenteye (gpsteamchallenge.com.au/sailor_session/show?date=2019-01-01&team=27)
35.37 Dave Morehead (gpsteamchallenge.com.au/sailor_session/show?date=2021-10-09&team=27)

Derwent River (North of Bridge):
36.28 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2018-06-08&team=27)
35.47 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2016-07-15&team=27)
35.27 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2014-07-03&team=27)
Robbins Passage (Johno's Run):
36.13 Ian Johnson (gpsteamchallenge.com.au/sailor_session/show?date=2013-01-01&team=27)

Derwent River (South of Bridge):
35.84 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2013-10-18&team=27)
35.14 Will Short (gpsteamchallenge.com.au/sailor_session/show?date=2013-05-25&team=27)

Ansons Bay:
35.67 Izaak Perkins (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2014-12-07)

Droughty Point (Goof Balls):
35.54 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2015-04-02&team=27)

Lunawanna, Bruny Island:
35.06 Steve Charles (gpsteamchallenge.com.au/sailor_session/show?date=2017-02-12&team=27)

Narrow, but just over 500m in length!

Here's a list of 2-second speeds over 40 knots by sailors sailing in Tasmania, with location and session information:

46.61 James Brient - Port Sorell (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2015-01-16)
46.57 Anthony Perkins - Port Sorell (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2015-01-16)
46.31 cookie - Stanley (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2022-01-06)
45.50 Izaak Perkins - Stanley (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2022-01-06)
45.42 Dave Morehead - Stanley (gpsteamchallenge.com.au/sailor_session/show?date=2021-06-07&team=27)
45.05 Russell Dowd - Port Sorell (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2015-01-16)
44.89 Ray Thorne - Port Sorell (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2015-01-16)
44.16 Steve200 - Port Sorell (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2019-03-25)
44.11 Kaleb Smith - Stanley (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2012-03-03)
43.72 Jason - Port Sorell (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2015-01-16)
42.28 Jordan Murray - Port Sorell (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2015-01-16)
42.23 Stewart McKay - Port Sorell (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2018-11-03)
41.93 Jez - Port Sorell (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2015-01-16)
41.58 Johno - Port Sorell (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2015-01-16)
41.23 Ferg - Port Sorell (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2017-01-14)
40.58 Paul Tenteye - Port Sorell (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2012-07-15)
40.55 veitz - Stanley (gpsteamchallenge.com.au/sailor_session/show?team=27&date=2012-03-03)