Toughest Thirteen

The Toughest Thirteen (T13) is a marathon swimming challenge¹ consisting of the following solo swims:

Swim	Type	First	Region	Route
Alenuihaha Channel	channel	1970	Pacific	Min. 47km btw Hawaii (Big Island) and Maui
Angel Island	island loop	1984	US (west)	Min. 16km loop around Angel Isl from Aquatic Park, San Francisco
Dál Riata Channel	channel	2012	UK/IRL	Min. 21km btw Torr Head (N. Ireland) and Mull of Kintyre (Scotland)
Derwent River	river	1975	Aus/NZ	34km btw New Norfolk and Tasman Bridges, Tasmania
False Bay	bay	1989	Africa	Min. 33km across the mouth the bay, btw Rooi Els and Miller's Point
Fastnet Rock	channel	2011	UK/IRL	Btw Fastnet Rock and Ireland @ Schull (15.6km), Mizen Head (18km), or Baltimore (21km)
Fehmarnbelt	channel	1939	Europe	Min. 19km btw Fehmarn (Germany) and Lolland (Denmark)
Gulf of the Farallones	channel	1967	US (west)	Btw the Farallon Isl and Calif. mainland (min. 33km) or the Golden Gate Br (48km)
Foveaux Strait	channel	1963	Aus/NZ	Min. 29km btw Stewart Island and South Island, New Zealand
Strait of Juan de Fuca	channel	1955	US (west)	Min. 17km btw Washington (USA) and British Columbia (Canada)
Monterey Bay	bay	1980	US (west)	Min. 37km btw Santa Cruz and Monterey or Pacific Grove
Loch Ness	lake	1966	UK/IRL	36km btw Fort Augustus and Loch End, Scotland
Lago Titicaca	lake	1991	LatAm	Minimum 15km until canonical route established²

Leaderboard

To date, no one has completed more than four of these swims.

Name			Alenui.	Angel Isl	Fehmarn Belt	Dal Riata	Derwent	False Bay	Fastnet	Foveaux	Farallon	J.d. Fuca	Monterey	Loch Ness	Titicaca
Andrew Packer			-	2020	-	-	-	-	2022	-	-	2023	2023	-

Name	Alenui.	Angel Isl	Fehmarn Belt	Dal Riata	Derwent	False Bay	Fastnet	Foveaux	Farallon	J.d. Fuca	Monterey	Loch Ness
Kimberly Rutherford	-	2023	-	-	-	-	-	-	-	2019	2014	-
Sarah Thomas	-	2019	-	-	-	-	-	-	-	-	2021	2015
Joe Zemaitis	-	2020	-	-	-	-	-	-	-	-	2020	2018
John Zemaitis	-	2020	-	-	-	-	-	-	-	-	2019	2018

Name	Alenui.	Angel Isl	Fehmarn Belt	Dal Riata	Derwent	False Bay	Fastnet	Foveaux	Farallon	J.d. Fuca	Monterey	Loch Ness
Anke Höhne	-	-	2016	-	-	-	-	-	-	-	-	2023
Shubham Vanmali	-	2018	-	-	-	2023	-	-	-	-	-	-
Catherine Breed	-	2022	-	-	-	-	-	-	-	-	2020	-
Suzanne Heim Bowen	-	2019	-	-	-	-	2021	-	-	-	-	-
Sarah Roberts	-	2019	-	-	-	-	-	-	-	-	2021	-
Amy Appelhans Gubser	-	2020	-	-	-	-	-	-	-	-	2017	-
Patti Bauernfeind	-	-	-	-	-	-	-	-	-	-	2014	2017
Craig Lenning	-	-	-	-	-	-	-	-	2014	-	-	2015
Daniel Curtis	-	-	2014	-	2015	-	-	-	-	-	-	-

¹ The T13 was created by Evan Morrison in 2019 as an alternative to the Oceans Seven, focusing on extremely challenging and less known swim routes.
² A canonical marathon swim route in Lago Titicaca has not yet been established. The only known Titicaca marathon was completed by Lynne Cox in 1991 - a coastal 15km route between Copacabana, Bolivia and Chimbo, Peru. To qualify for the T13, swimmers must complete a route of at least 15km. If a longer, cross-lake route is pioneered in the future, we may revise/raise the minimum standard for a T13-qualifying Titicaca swim.