Longest Swims by Duration

Longest open water swims by duration (24 hours and longer) - documented, nonstop, unassisted, non-river.*

#Name SwimTimeKmYear
1 Sarah Thomas F Lake Champlain (Gardiner Isl loop from Rouses Pt NY) 67:16 168.3 2017
2 Vicki Keith F Lake Ontario (Point Petre to Lake Ontario Park via N Amherst Isl) 63:40 74 2005
3 Vicki Keith F Lake Ontario (Toronto (Leslie St Spit) - Port Dalhousie - Toronto (harbour)) 56:10 95 1987
4 Sarah Thomas F Lake Powell (Bullfrog to Wahweap) 56:05 128.7 2016
5 Sarah Thomas F English Channel (England - France - England - France - England) 54:10 132 2019
6 Vicki Keith F Lake Michigan (Union Pier MI to Chicago IL) 52:45 72 1988
7 Caroline Block F Lake George (Lake George Village - Ticonderoga - Lake George Village) 52:24 103.6 2020
8 Neil Agius M Mediterranean Sea (Linosa to Gozo) 52:07 125.7 2021
9 V.S. Kumar Anandan M Palk Strait (Talaimannar to Dhanushkodi to Talaimannar) 51:00 58 1974
10 Veljko Rogošić M Adriatic Sea (Grado to Riccione) 50:10 194 2006
11 Joe Zemaitis M Roosevelt Lake (4.5-way lengthwise) 47:23 112 2020
12 Vicki Keith F Lake Huron (Harbor Beach MI to Goderich ON) 46:55 75 1988
13 James Loreto M Manhattan Island solo (3x Manhattan circumnavigation (CW) + Pier A to GWB) 43:43 165.9 2021
14 Sean O'Connell M Around Bermuda (Bermuda circumnavigation (CW)) 43:27 58.7 1976
15 Kevin Murphy M Lake Balaton (Lake Balaton length (dir. unknown)) 43:15 75.5 1973
16 Antonio Abertondo M English Channel (England - France - England) 43:10 66 1961
17 Vedika Karin Bolliger F Lake Geneva (Chillon Castle to Bains des Pâquis (E-W)) 42:41 69 1999
18 Sean Nuttall M Lake Ontario (Toronto - Port Dalhousie - Toronto) 42:27 100.5 2022
19 V.S. Kumar Anandan M Palk Strait (Valvettithurai to Point Calimere) 42:00 59 1963
20 Feras Mouala M Mediterranean Sea (Zaferburnu, Cyprus to Cote D'Azur, Syria) 41:45 106 2007
21 Chloë McCardel F Exuma Sound (South Eleuthera Island to Nassau) 41:21 124.4 2014
22 Jay Serdula M Lake Ontario (Niagara River mouth to Toronto (Leslie St Spit)) 41:01 44.2 2008
23 Cameron Bellamy M Around Barbados (Barbados circumnavigation) 40:46 90 2018
24 Jenny Kammersgaard F Baltic Sea (Gedser to Nienhagen) 40:26 43.8 1938
25 Wendy Trehiou F English Channel (England - France - England) 39:09 66 2013
26 Jon Erikson M English Channel (England - France - England - France) 38:27 99 1981
27 Marcy MacDonald F English Channel (Ramsgate, England to Belgium) 38:20 82.6 2022
28 Stefanos Meltsis M Toroneos Gulf Marathon (Kallithea / Nikiti 4-way crossing) 37:50 98 2011
29 Ted Erikson M Jim Moran Lake Michigan Swim Challenge (Chicago IL to Benton Harbor MI) 37:31 96.6 1963
30 Ted Erikson M Jim Moran Lake Michigan Swim Challenge (Burnham Harbor, Chicago to Washington Park Beach, Michigan City) 36:37 60 1961
31 Imre Szénási M Lake Balaton (Balatonkenese to Keszthely) 36:29 75.5 1961
32 Sal Minty-Gravett F English Channel (England - France - England) 36:26 66 2016
33 Margarita Llorens Bagur F Ibiza Channel (Cap de Sant Antoni to Cala Codolar) 36:16 90.3 2018
34 Chloë McCardel F English Channel (England - France - England - France) 36:12 99 2015
35 Kevin Murphy M English Channel (England - France - England) 36:03 66 1975
36 Ken Mignosa M California Channel Islands (Cardwell Pt (S. Miguel Isl) to Campo Grande Pt (S. Cruz Isl)) 35:49 67.1 2019
37 Ted Erikson M Jim Moran Lake Michigan Swim Challenge (Chicago IL to Kenosha WI) 35:37 80.5 1962
38 Giannis Kotsiopoulos M Toroneos Gulf Marathon (Kallithea / Nikiti 3-way crossing) 35:30 73.5 2005
39 Diane Struble F Lake George (Ticonderoga to Lake George Village) 35:30 51.8 1958
40 Sofia Psilolignou F Toroneos Gulf Marathon (Kallithea / Nikiti 2-way crossing) 35:30 49 2008
41 John Munro M Lake Ontario (Sackets Harbor NY to Kingston ON) 35:15 55 2003
42 Kevin Murphy M English Channel (England - France - England) 35:10 66 1970
43 Lisa Cummins F English Channel (England - France - England) 35:00 66 2009
44 Harry Briggs M Lake Erie (Marblehead Light to Point Pelee) 34:55 45 1957
45 Steve Stievenart M English Channel (England - France - England) 34:45 66 2020
46 Alison Streeter F English Channel (England - France - England - France) 34:40 99 1990
47 Abdel Latif Abou Heif M Jim Moran Lake Michigan Swim Challenge (Chicago IL to Benton Harbor MI) 34:38 96.6 1963
48 Cindy Cleveland F Catalina Island circumnavigation (Catalina Island circumnavigation (CCW)) 34:24 74.7 1979
49 Paul Chotteau M Catalina Channel (Catalina Island to Mainland) 33:50 32.3 1936
50 Stacy Chanin F Manhattan Island solo (3x Manhattan circumnavigation (CCW)) 33:29 137.7 1984
51 Sandra Blewett F Lake Taupo (Taupo-Waihi-Taupo) 33:21 80.8 1986
52 Courtney Moates Paulk F Catalina Channel (Mainland to Catalina Island to Mainland) 33:13 64.6 2017
53 Harry Briggs M Lake Winnipesaukee (Alton Bay to Wolfeboro to Weirs Beach) 33:12 36 1963
54 Mark Sheridan M Lake Geneva (Chillon Castle to Bains des Pâquis (E-W)) 33:06 69 2016
55 Skip Storch M Manhattan Island solo (3x Manhattan circumnavigation (CCW)) 32:52 137.7 2007
56 Jaimie Monahan F Lake Geneva (Chillon Castle to Bains des Pâquis (E-W)) 32:52 69 2015
57 Vicente Arena M Cruce Rio de la Plata (Colonia del Sacramento (Uruguay) - Punta Lara (Argentina)) 32:50 40 1943
58 Nicholas Murch M Lake Geneva (Chillon Castle to Bains des Pâquis (E-W)) 32:46 69 2016
59 Carlos Costa M Lake Ontario (Niagara River mouth to Toronto (Leslie St Spit)) 32:43 44.2 1993
60 Kevin Murphy M English Channel (France - England - France) 32:42 66 1987
61 Jenna Lambert F Lake Ontario (Baird Pt NY to Lake Ontario Park, Kingston ON) 32:18 33 2006
62 George Dempsey M Lake George (Ticonderoga to Lake George Village) 32:15 51.8 1967
63 Jose Cortinas M Catalina Channel (Mainland to Catalina Island) 32:10 32.3 1953
64 Krzysztof Gajewski M Masurian Lake District (Northwest Mamry Lake to Suchy Róg, Sniardwy Lake) 31:53 77.5 2019
65 Sarah Eismann F Around Bermuda (Bermuda circumnavigation (CW)) 31:28 58.7 2018
66 Bill Stevens M Lake George (Ticonderoga to Lake George Village) 31:27 51.8 1962
67 Brenda Sherratt F Loch Ness (Loch Ness (dir. unknown)) 31:27 36.2 1966
68 Greta Andersen F Jim Moran Lake Michigan Swim Challenge (Chicago IL to Kenosha WI) 31:00 80.5 1962
69 Vicki Keith F Lake Ontario (Niagara River mouth to Toronto (west waterfront)) 31:00 49 1989
70 Hamza Bakircioglu M Bodensee (Bodmann DE to Bregenz AT) 30:45 64 2016
71 Antonio Abertondo M Cruce Rio de la Plata (Colonia del Sacramento (Uruguay) - Punta Lara (Argentina)) 30:45 40 1950
72 Nicky Farrugia M Malta Channel (Sicily (P. Secca) to Gozo (Xwejni Bay)) 30:17 82 1985
73 Jessi Harewicz F Strait of Georgia (Nanaimo to Kitsilano Beach, Vancouver) 30:13 58.6 2019
74 Ted Erikson M English Channel (England - France - England) 30:03 66 1965
75 Sarah Thomas F Lake Memphremagog (Magog to Newport to Magog) 30:01 80.4 2013
76 Jon Erikson M English Channel (England - France - England) 29:50 66 1975
77 Rick Seirer M English Channel (England - France - England) 29:46 66 2019
78 Antonio Abertondo M Cruce Rio de la Plata (Colonia del Sacramento (Uruguay) - Punta Lara (Argentina)) 29:30 40 1946
79 Jenny Kammersgaard F Kattegat (Sjællands Odde to Jutland) 29:25 39 1937
80 Ken Mignosa M Santa Barbara Channel (Mainland to Santa Cruz Island (via east Anacapa) to Mainland) 29:22 66 2018
81 Jerry Ferris M Lake George (Ticonderoga to Lake George Village) 29:15 51.8 1983
82 Lita Tiraboschi F Cruce Rio de la Plata (Colonia del Sacramento (Uruguay) - Punta Lara (Argentina)) 29:15 40 1943
83 Vedika Karin Bolliger F Lake Zurich solo (Zürich Lido Tiefenbrunnen - Lido Rapperswil - Zürich Lido Tiefenbrunnen) 29:00 52.8 1997
84 Kim Middleton F Lake Ontario (Toronto to Niagara Peninsula) 29:00 46 1993
85 Jose Cortinas M Catalina Channel (Catalina Island to Mainland) 28:55 32.3 1952
86 Steve Stievenart M Catalina Channel (Mainland to Catalina Island to Mainland) 28:45 64.6 2022
87 Jackie Cobell F English Channel (England to France) 28:44 33 2010
88 Tina Neill F California Channel Islands (San Clemente Island to mainland) 28:41 83.7 2012
89 Jaimie Monahan F Lake Geneva (Bains des Pâquis to Chillon Castle (W-E)) 28:36 69 2016
90 Anne Cleveland F English Channel (England - France - England) 28:36 66 2004
91 Philip Rush M English Channel (England - France - England - France) 28:21 99 1987
92 Margarita Llorens Bagur F Mallorca Channel (Ibiza to Mallorca) 28:13 82 2015
93 Neil Agius M Malta Channel (Sicily (P. Braccetto) to Malta (St Julian's Bay)) 28:08 100 2020
94 Jason Betley M Catalina Channel (Mainland to Catalina Island to Mainland) 28:06 64.6 2015
95 Caitlin O'Reilly F Lake Taupo (Taupo-Waihi-Taupo) 28:02 80.8 2022
96 Bridget Simpson F Lake George (Lake George Village to Ticonderoga) 28:02 51.8 2017
97 Prafulla Nocker F Lake Zurich solo (Zürich Bürkliplatz - Lido Rapperswil - Zürich Bürkliplatz) 28:00 55.3 1986
98 John Batchelder M Lake Powell (Dangling Rope Marina to beach across from the Rincon) 28:00 54 2018
99 Deirdre Ward F English Channel (England - France - England) 27:52 66 2016
100 Courtney Moates Paulk F English Channel (England - France - England) 27:36 66 2021
101 Liane Llewellyn Hickling F English Channel (England - France - England) 27:35 66 2009
102 Maya Merhige F Kaiwi Channel (Molokai to Oahu) 27:33 45 2023
103 Nick Adams M English Channel (England - France - England) 27:28 66 1995
104 Murugupillai Navratnaswami M Palk Strait (Valvettithurai to Point Calimere) 27:08 59 1954
105 Rick Goodwin M Lake Ontario (Niagara River mouth to Toronto (Leslie St Spit)) 27:06 44.2 1994
106 Vicki Keith F Lake Ontario (Toronto (Leslie St Spit) to Port Dalhousie) 26:59 45.8 1986
107 Greta Andersen F Catalina Channel (Catalina Island to Mainland to Catalina) 26:53 64.6 1958
108 Kevin Murphy M Around Isle of Wight (Isle of Wight circumnavigation) 26:51 90 1971
109 Stella Taylor F Lake George (Ticonderoga to Lake George Village) 26:51 51.8 1977
110 Henry Sullivan M English Channel (England to France) 26:50 33 1923
111 John Bulsza M Lake Huron (Port Sanilac MI to Port Franks Beach ON) 26:49 55 1996
112 Annaleise Carr-Haley F Lake Ontario (Queen's Royal Park to Marilyn Bell Park) 26:40 50.5 2012
113 Kim Lumsdon F Lake Ontario (Queen's Royal Park to Marilyn Bell Park) 26:38 50.5 2006
114 Anna Wardley F Around Isle of Wight (Isle of Wight circumnavigation) 26:33 90 2013
115 José Eduardo do Amaral Ferreira M Rio de Janeiro coast (Leme - Pontal - Leme) 26:32 70 2021
116 Dori Miller F English Channel (England - France - England) 26:21 66 2014
117 Kim Middleton F Lake Ontario (Toronto to Niagara Peninsula) 26:14 46 1994
118 Susan Baddeley F Loch Lomond solo (Loch Lomond (dir. unknown)) 26:10 34.8 1960
119 Shelagh Freedman M Lake Ontario (Queen's Royal Park to Marilyn Bell Park) 26:03 50.5 1993
120 Tony Bailey M English Channel (England to France) 25:56 33 2014
121 Pat Budny M Lake Erie (Long Point ON to Budny Beach, Presque Isle) 25:52 41 1975
122 Stuart Johnson M English Channel (England - France - England) 25:50 66 2011
123 Deirdre Ward F Lake Geneva (Chillon Castle to Bains des Pâquis (E-W)) 25:45 69 2019
124 Mihir Sen M Palk Strait (Talaimannar to Dhanushkodi) 25:44 29 1966
125 Paula Stephanson F Lake Michigan (Chicago (Rainbow Bch) to Michigan City (Washington Park Bch)) 25:38 53.5 2009
126 Helen Conway F Lake Geneva (Chillon Castle to Bains des Pâquis (E-W)) 25:37 69 2017
127 Graco Morlan M Catalina Channel (Mainland to Catalina Island to Mainland) 25:37 64.6 2019
128 Forrest Nelson M Catalina Island circumnavigation (Catalina Island circumnavigation (CW)) 25:35 74.7 2011
129 Attila Mányoki M Lake Balaton (Balatonkenese to Keszthely) 25:32 75.5 2008
130 Stephen Rouch M Lake Memphremagog (Newport to Magog to Newport) 25:12 80.4 2019
131 Luis Garramendy M Cruce Rio de la Plata (Colonia del Sacramento (Uruguay) - Punta Lara (Argentina)) 25:12 40 1924
132 Bob Weir M Lake Simcoe (Wasago (Lake Couchiching) to Barrie (Centennial Park)) 25:08 56 1991
133 Heather Roka F English Channel (England - France - England) 25:07 66 2021
134 Bill Sadlo M Lake Ontario (Niagara River mouth to Toronto (west waterfront)) 25:01 49 1957
135 Elizabeth Fry F English Channel (England - France - England) 24:41 66 2011
136 Forrest Nelson M Catalina Channel (Catalina Island to Mainland) 24:39 32.3 2013
137 Michael Read M Around Isle of Wight (Isle of Wight circumnavigation) 24:36 90 1973
138 Jaime Caballero Echeverría M English Channel (England - France - England) 24:35 66 2013
139 Boguslaw Ogrodnik M Lake Tahoe (Camp Richardson to Incline Village) 24:34 34.2 2018
140 Bridgette Hobart F Finger Lakes (Seneca Lake - Geneva to Watkins Glen) 24:31 54.9 2015
141 Stephanie Hopson F English Channel (England to France) 24:31 33 2016
142 Craig Lenning M Lake Tahoe (Incline Village to Camp Richardson to Incline Village) 24:30 68.4 2013
143 Stuart Johnson M English Channel (England - France - England) 24:30 66 2012
144 Cindy Cleveland F Catalina Channel (Mainland to Catalina Island to Mainland) 24:30 64.6 1977
145 Joe Zemaitis M Catalina Channel (Mainland to Catalina Island to Mainland) 24:28 64.6 2021
146 Pat Gallant-Charette F Lake Ontario (Queen's Royal Park to Marilyn Bell Park) 24:28 50.5 2017
147 Susanne Robinson F Lake Ontario (Niagara River mouth to Toronto (Leslie St Spit)) 24:28 44.2 2010
148 Madhu Nagaraja M Lake Ontario (Port Dalhousie to Oakville) 24:26 41 2012
149 Bruno Baumgartner M Bodensee (Bodmann DE to Bregenz AT) 24:20 64 2013
150 Antonio Abertondo M English Channel (France to England) 24:20 33 1961
151 Lilian Harrison F Cruce Rio de la Plata (Colonia del Sacramento (Uruguay) - Punta Lara (Argentina)) 24:19 40 1923
152 Antonio Argüelles M Catalina Channel (Mainland to Catalina Island to Mainland) 24:17 64.6 2019
153 Marcy MacDonald F English Channel (England - France - England) 24:16 66 2013
154 Beth French F Kaiwi Channel (Molokai to Oahu) 24:10 45 2012
155 Pat Gallant-Charette F Lake Memphremagog (Newport to Magog) 24:08 40.2 2019
156 Anna McClarnon F English Channel (England to France) 24:08 33 2002
157 Jessica Kieras F California Channel Islands (Santa Barbara Island to Pt Vicente) 24:07 63.8 2022
158 Wendy Trehiou F Channel Islands (St. Malo to Jersey) 24:07 53.3 2015
159 Jaimie Monahan F Lake Maggiore (Tenero-Contra CH to Sesto Calende IT) 24:02 59.4 2017
160 Amy Hiland F Catalina Channel (Catalina Island to Mainland) 24:00 32.3 1958

* List does not include unverified swim claims, stage swims, swims assisted by nonstandard equipment such as wetsuits, fins, shark cages, and stinger suits, or downstream river swims. River swims are still being researched and will be listed separately.

Also see: Longest Swims by Distance