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 V.S. Kumar Anandan M Palk Strait (Valvettithurai to Point Calimere) 42:00 59 1963
19 Feras Mouala M Mediterranean Sea (Zaferburnu, Cyprus to Cote D'Azur, Syria) 41:45 106 2007
20 Chloë McCardel F Exuma Sound (South Eleuthera Island to Nassau) 41:21 124.4 2014
21 Jay Serdula M Lake Ontario (Niagara River mouth to Toronto (Leslie St Spit)) 41:01 44.2 2008
22 Cameron Bellamy M Around Barbados (Barbados circumnavigation) 40:46 90 2018
23 Jenny Kammersgaard F Baltic Sea (Gedser to Nienhagen) 40:26 43.8 1938
24 Wendy Trehiou F English Channel (England - France - England) 39:09 66 2013
25 Jon Erikson M English Channel (England - France - England - France) 38:27 99 1981
26 Marcy MacDonald F English Channel (Ramsgate, England to Belgium) 38:20 82.6 2022
27 Stefanos Meltsis M Toroneos Gulf Marathon (Kallithea / Nikiti 4-way crossing) 37:50 98 2011
28 Ted Erikson M Jim Moran Lake Michigan Swim Challenge (Chicago IL to Benton Harbor MI) 37:31 96.6 1963
29 Ted Erikson M Jim Moran Lake Michigan Swim Challenge (Burnham Harbor, Chicago to Washington Park Beach, Michigan City) 36:37 60 1961
30 Imre Szénási M Lake Balaton (Balatonkenese to Keszthely) 36:29 75.5 1961
31 Sal Minty-Gravett F English Channel (England - France - England) 36:26 66 2016
32 Margarita Llorens Bagur F Ibiza Channel (Cap de Sant Antoni to Cala Codolar) 36:16 90.3 2018
33 Chloë McCardel F English Channel (England - France - England - France) 36:12 99 2015
34 Kevin Murphy M English Channel (England - France - England) 36:03 66 1975
35 Ken Mignosa M California Channel Islands (Cardwell Pt (S. Miguel Isl) to Campo Grande Pt (S. Cruz Isl)) 35:49 67.1 2019
36 Ted Erikson M Jim Moran Lake Michigan Swim Challenge (Chicago IL to Kenosha WI) 35:37 80.5 1962
37 Giannis Kotsiopoulos M Toroneos Gulf Marathon (Kallithea / Nikiti 3-way crossing) 35:30 73.5 2005
38 Diane Struble F Lake George (Ticonderoga to Lake George Village) 35:30 51.8 1958
39 Sofia Psilolignou F Toroneos Gulf Marathon (Kallithea / Nikiti 2-way crossing) 35:30 49 2008
40 John Munro M Lake Ontario (Sackets Harbor NY to Kingston ON) 35:15 55 2003
41 Kevin Murphy M English Channel (England - France - England) 35:10 66 1970
42 Lisa Cummins F English Channel (England - France - England) 35:00 66 2009
43 Harry Briggs M Lake Erie (Marblehead Light to Point Pelee) 34:55 45 1957
44 Steve Stievenart M English Channel (England - France - England) 34:45 66 2020
45 Alison Streeter F English Channel (England - France - England - France) 34:40 99 1990
46 Abdel Latif Abou Heif M Jim Moran Lake Michigan Swim Challenge (Chicago IL to Benton Harbor MI) 34:38 96.6 1963
47 Cindy Cleveland F Catalina Island circumnavigation (Catalina Island circumnavigation (CCW)) 34:24 74.7 1979
48 Paul Chotteau M Catalina Channel (Catalina Island to Mainland) 33:50 32.3 1936
49 Stacy Chanin F Manhattan Island solo (3x Manhattan circumnavigation (CCW)) 33:29 137.7 1984
50 Sandra Blewett F Lake Taupo (Taupo-Waihi-Taupo) 33:21 80.8 1986
51 Courtney Moates Paulk F Catalina Channel (Mainland to Catalina Island to Mainland) 33:13 64.6 2017
52 Harry Briggs M Lake Winnipesaukee (Alton Bay to Wolfeboro to Weirs Beach) 33:12 36 1963
53 Mark Sheridan M Lake Geneva (Chillon Castle to Bains des Pâquis (E-W)) 33:06 69 2016
54 Skip Storch M Manhattan Island solo (3x Manhattan circumnavigation (CCW)) 32:52 137.7 2007
55 Jaimie Monahan F Lake Geneva (Chillon Castle to Bains des Pâquis (E-W)) 32:52 69 2015
56 Vicente Arena M Cruce Rio de la Plata (Colonia del Sacramento (Uruguay) - Punta Lara (Argentina)) 32:50 40 1943
57 Nicholas Murch M Lake Geneva (Chillon Castle to Bains des Pâquis (E-W)) 32:46 69 2016
58 Carlos Costa M Lake Ontario (Niagara River mouth to Toronto (Leslie St Spit)) 32:43 44.2 1993
59 Kevin Murphy M English Channel (France - England - France) 32:42 66 1987
60 Jenna Lambert F Lake Ontario (Baird Pt NY to Lake Ontario Park, Kingston ON) 32:18 33 2006
61 George Dempsey M Lake George (Ticonderoga to Lake George Village) 32:15 51.8 1967
62 Jose Cortinas M Catalina Channel (Mainland to Catalina Island) 32:10 32.3 1953
63 Krzysztof Gajewski M Masurian Lake District (Northwest Mamry Lake to Suchy Róg, Sniardwy Lake) 31:53 77.5 2019
64 Sarah Eismann F Around Bermuda (Bermuda circumnavigation (CW)) 31:28 58.7 2018
65 Bill Stevens M Lake George (Ticonderoga to Lake George Village) 31:27 51.8 1962
66 Brenda Sherratt F Loch Ness (Loch Ness (dir. unknown)) 31:27 36.2 1966
67 Greta Andersen F Jim Moran Lake Michigan Swim Challenge (Chicago IL to Kenosha WI) 31:00 80.5 1962
68 Vicki Keith F Lake Ontario (Niagara River mouth to Toronto (west waterfront)) 31:00 49 1989
69 Hamza Bakircioglu M Bodensee (Bodmann DE to Bregenz AT) 30:45 64 2016
70 Antonio Abertondo M Cruce Rio de la Plata (Colonia del Sacramento (Uruguay) - Punta Lara (Argentina)) 30:45 40 1950
71 Nicky Farrugia M Malta Channel (Sicily (P. Secca) to Gozo (Xwejni Bay)) 30:17 82 1985
72 Jessi Harewicz F Strait of Georgia (Nanaimo to Kitsilano Beach, Vancouver) 30:13 58.6 2019
73 Ted Erikson M English Channel (England - France - England) 30:03 66 1965
74 Sarah Thomas F Lake Memphremagog (Magog to Newport to Magog) 30:01 80.4 2013
75 Jon Erikson M English Channel (England - France - England) 29:50 66 1975
76 Rick Seirer M English Channel (England - France - England) 29:46 66 2019
77 Antonio Abertondo M Cruce Rio de la Plata (Colonia del Sacramento (Uruguay) - Punta Lara (Argentina)) 29:30 40 1946
78 Jenny Kammersgaard F Kattegat (Sjællands Odde to Jutland) 29:25 39 1937
79 Ken Mignosa M Santa Barbara Channel (Mainland to Santa Cruz Island (via east Anacapa) to Mainland) 29:22 66 2018
80 Jerry Ferris M Lake George (Ticonderoga to Lake George Village) 29:15 51.8 1983
81 Lita Tiraboschi F Cruce Rio de la Plata (Colonia del Sacramento (Uruguay) - Punta Lara (Argentina)) 29:15 40 1943
82 Vedika Karin Bolliger F Lake Zurich solo (Zürich Lido Tiefenbrunnen - Lido Rapperswil - Zürich Lido Tiefenbrunnen) 29:00 52.8 1997
83 Kim Middleton F Lake Ontario (Toronto to Niagara Peninsula) 29:00 46 1993
84 Jose Cortinas M Catalina Channel (Catalina Island to Mainland) 28:55 32.3 1952
85 Steve Stievenart M Catalina Channel (Mainland to Catalina Island to Mainland) 28:45 64.6 2022
86 Jackie Cobell F English Channel (England to France) 28:44 33 2010
87 Tina Neill F California Channel Islands (San Clemente Island to mainland) 28:41 83.7 2012
88 Jaimie Monahan F Lake Geneva (Bains des Pâquis to Chillon Castle (W-E)) 28:36 69 2016
89 Anne Cleveland F English Channel (England - France - England) 28:36 66 2004
90 Philip Rush M English Channel (England - France - England - France) 28:21 99 1987
91 Margarita Llorens Bagur F Mallorca Channel (Ibiza to Mallorca) 28:13 82 2015
92 Neil Agius M Malta Channel (Sicily (P. Braccetto) to Malta (St Julian's Bay)) 28:08 100 2020
93 Jason Betley M Catalina Channel (Mainland to Catalina Island to Mainland) 28:06 64.6 2015
94 Caitlin O'Reilly F Lake Taupo (Taupo-Waihi-Taupo) 28:02 80.8 2022
95 Bridget Simpson F Lake George (Lake George Village to Ticonderoga) 28:02 51.8 2017
96 Prafulla Nocker F Lake Zurich solo (Zürich Bürkliplatz - Lido Rapperswil - Zürich Bürkliplatz) 28:00 55.3 1986
97 John Batchelder M Lake Powell (Dangling Rope Marina to beach across from the Rincon) 28:00 54 2018
98 Deirdre Ward F English Channel (England - France - England) 27:52 66 2016
99 Courtney Moates Paulk F English Channel (England - France - England) 27:36 66 2021
100 Liane Llewellyn Hickling F English Channel (England - France - England) 27:35 66 2009
101 Nick Adams M English Channel (England - France - England) 27:28 66 1995
102 Murugupillai Navratnaswami M Palk Strait (Valvettithurai to Point Calimere) 27:08 59 1954
103 Rick Goodwin M Lake Ontario (Niagara River mouth to Toronto (Leslie St Spit)) 27:06 44.2 1994
104 Vicki Keith F Lake Ontario (Toronto (Leslie St Spit) to Port Dalhousie) 26:59 45.8 1986
105 Greta Andersen F Catalina Channel (Catalina Island to Mainland to Catalina) 26:53 64.6 1958
106 Kevin Murphy M Around Isle of Wight (Isle of Wight circumnavigation) 26:51 90 1971
107 Stella Taylor F Lake George (Ticonderoga to Lake George Village) 26:51 51.8 1977
108 Henry Sullivan M English Channel (England to France) 26:50 33 1923
109 John Bulsza M Lake Huron (Port Sanilac MI to Port Franks Beach ON) 26:49 55 1996
110 Annaleise Carr-Haley F Lake Ontario (Queen's Royal Park to Marilyn Bell Park) 26:40 50.5 2012
111 Kim Lumsdon F Lake Ontario (Queen's Royal Park to Marilyn Bell Park) 26:38 50.5 2006
112 Anna Wardley F Around Isle of Wight (Isle of Wight circumnavigation) 26:33 90 2013
113 José Eduardo do Amaral Ferreira M Travessia do Leme ao Pontal (Leme - Pontal - Leme) 26:32 70 2021
114 Dori Miller F English Channel (England - France - England) 26:21 66 2014
115 Kim Middleton F Lake Ontario (Toronto to Niagara Peninsula) 26:14 46 1994
116 Susan Baddeley F Loch Lomond solo (Loch Lomond (dir. unknown)) 26:10 34.8 1960
117 Shelagh Freedman M Lake Ontario (Queen's Royal Park to Marilyn Bell Park) 26:03 50.5 1993
118 Tony Bailey M English Channel (England to France) 25:56 33 2014
119 Pat Budny M Lake Erie (Long Point ON to Budny Beach, Presque Isle) 25:52 41 1975
120 Stuart Johnson M English Channel (England - France - England) 25:50 66 2011
121 Deirdre Ward F Lake Geneva (Chillon Castle to Bains des Pâquis (E-W)) 25:45 69 2019
122 Mihir Sen M Palk Strait (Talaimannar to Dhanushkodi) 25:44 29 1966
123 Paula Stephanson F Lake Michigan (Chicago (Rainbow Bch) to Michigan City (Washington Park Bch)) 25:38 53.5 2009
124 Helen Conway F Lake Geneva (Chillon Castle to Bains des Pâquis (E-W)) 25:37 69 2017
125 Graco Morlan M Catalina Channel (Mainland to Catalina Island to Mainland) 25:37 64.6 2019
126 Forrest Nelson M Catalina Island circumnavigation (Catalina Island circumnavigation (CW)) 25:35 74.7 2011
127 Attila Mányoki M Lake Balaton (Balatonkenese to Keszthely) 25:32 75.5 2008
128 Stephen Rouch M Lake Memphremagog (Newport to Magog to Newport) 25:12 80.4 2019
129 Luis Garramendy M Cruce Rio de la Plata (Colonia del Sacramento (Uruguay) - Punta Lara (Argentina)) 25:12 40 1924
130 Bob Weir M Lake Simcoe (Wasago (Lake Couchiching) to Barrie (Centennial Park)) 25:08 56 1991
131 Heather Roka F English Channel (England - France - England) 25:07 66 2021
132 Bill Sadlo M Lake Ontario (Niagara River mouth to Toronto (west waterfront)) 25:01 49 1957
133 Elizabeth Fry F English Channel (England - France - England) 24:41 66 2011
134 Forrest Nelson M Catalina Channel (Catalina Island to Mainland) 24:39 32.3 2013
135 Michael Read M Around Isle of Wight (Isle of Wight circumnavigation) 24:36 90 1973
136 Jaime Caballero Echeverría M English Channel (England - France - England) 24:35 66 2013
137 Boguslaw Ogrodnik M Lake Tahoe (Camp Richardson to Incline Village) 24:34 34.2 2018
138 Bridgette Hobart F Finger Lakes (Seneca Lake - Geneva to Watkins Glen) 24:31 54.9 2015
139 Stephanie Hopson F English Channel (England to France) 24:31 33 2016
140 Craig Lenning M Lake Tahoe (Incline Village to Camp Richardson to Incline Village) 24:30 68.4 2013
141 Stuart Johnson M English Channel (England - France - England) 24:30 66 2012
142 Cindy Cleveland F Catalina Channel (Mainland to Catalina Island to Mainland) 24:30 64.6 1977
143 Joe Zemaitis M Catalina Channel (Mainland to Catalina Island to Mainland) 24:28 64.6 2021
144 Pat Gallant-Charette F Lake Ontario (Queen's Royal Park to Marilyn Bell Park) 24:28 50.5 2017
145 Susanne Robinson F Lake Ontario (Niagara River mouth to Toronto (Leslie St Spit)) 24:28 44.2 2010
146 Madhu Nagaraja M Lake Ontario (Port Dalhousie to Oakville) 24:26 41 2012
147 Bruno Baumgartner M Bodensee (Bodmann DE to Bregenz AT) 24:20 64 2013
148 Antonio Abertondo M English Channel (France to England) 24:20 33 1961
149 Lilian Harrison F Cruce Rio de la Plata (Colonia del Sacramento (Uruguay) - Punta Lara (Argentina)) 24:19 40 1923
150 Antonio Argüelles M Catalina Channel (Mainland to Catalina Island to Mainland) 24:17 64.6 2019
151 Marcy MacDonald F English Channel (England - France - England) 24:16 66 2013
152 Beth French F Kaiwi Channel (Molokai to Oahu) 24:10 45 2012
153 Pat Gallant-Charette F Lake Memphremagog (Newport to Magog) 24:08 40.2 2019
154 Anna McClarnon F English Channel (England to France) 24:08 33 2002
155 Jessica Kieras F California Channel Islands (Santa Barbara Island to mainland) 24:07 60.7 2022
156 Wendy Trehiou F Channel Islands (St. Malo to Jersey) 24:07 53.3 2015
157 Jaimie Monahan F Lake Maggiore (Tenero-Contra CH to Sesto Calende IT) 24:02 59.4 2017
158 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