Lake Ontario is one of the toughest, longest, and celebrated cross-border marathon swims in the world, and part of the Still Water Eight.

Lake Ontario is one of the five Great Lakes of North America, bound on the north and southwest by the Canadian province of Ontario, and on the south by the American state of New York.

While two Oceans Seven swimmers (Joe Zemaitis and Attila Manyoki) have crossed the lake, an impressive total of 36 International Marathon Swimming Hall of Fame Honor Swimmers have crossed the lake since 1954 – including Ernst Vierkötter, Georges Michel, Gertrude Ederle, Norman Ross, Martha Norelius, Marvin Nelson, Bill Goll, George Young, May Looney, Frank Pritchard, Steve Wozniak, Bill Sadlo, Thomas Park, Cliff Lumsdon, Jacques Amyot, Jerry Kerschner, Herman Willemse, Greta Anderson, Regent Lacoursiere, Helge Jensen, Alfredo Camarero, Regent Lacoursiere, Marty Sinn, Abdel Latif Abou Heif, John Kinsella, Claudio Plit, Marilyn Bell, Brenda Fisher, Cindy Nicholas, Vicki Keith, Pat Gallant-Charette, Elizabeth Fry, Joe Zemaitis, Attila Manyoki, Patty Thompson, and Diana Nyad.

But it is not always the faster swimmers who have crossed from shore to shore, but also 16 swimmers (to date) have taken longer than 24 hours to complete the swim.

Lake Ontario nearly always has surprises in store.

During Attila’s 16 hour 8 minute crossing, the water temperature dropped to 10°C towards the end. During the first four hours of the recent 17 hour 48 minute crossing of Dr. Michael Pollanen there was nearly one-meter swells and whitecaps smacking him and his escort head-on. “The first four hours were pretty rough,” said Shaun Chisholm on Dr. Pollanen’s escort boat, never an exaggeration on Lake Ontario.

I recall writing a nomination for Trinity Arsenault in 2014 for the World Open Water Swimming Performance of the Year, “Canada seems to attract the young while creating heroines of the open water. From 16-year-old Marilyn Bell in 1954 to 14-year-old Annaleise Carr in 2012, Lake Ontario in particular is the marathon swimming Fountain of Youth.

Where young Canadians can test themselves along an always dynamically turbulent 52 km traditional Marilyn Bell course from the mouth of the Niagara River to the Marilyn Bell Park in Toronto, Trinity Arsenault became the youngest person in history at the age of 14 years 61 days to cross Lake Ontario. She took 24 hours 19 minutes in a north-to-south swim that required her to reverse directions twice in order to dodge oncoming thunderstorms. Arsenault raised money for the Canadian Tire Jumpstart Program that caters to underprivileged children. For her youthful enthusiasm to take on a challenging marathon swim and never give up despite having to purposefully swim off-course, for her efforts to raise money and awareness for kids who cannot afford to participate in athletic programs, for her successful  crossing that replicated the swim that her mother swam in 2011, Trinity Arsenault’s Lake Ontario crossing is a worthy nominee for the 2014 World Open Water Swimming Performance of the Year.”

Read about Arsenault’s historic crossing here at Solo Swims.

For a comprehensive history of marathon swims in and across Lake Ontario, visit www.soloswims.org.

For details of the courses and swimmers of Lake Ontario, visit Marathon Swimmers Federation LongSwims database here.

1927 Canadian National Race

A professional marathon swim held on August 31st 1927 in a 33.8 km Lake Ontario buoy course

1. Ernst Vierkötter, 26, Germany in 11 hours 42 minutes
2. Georges Michel, 37, France in 16 hours 12 minutes
3. William Erickson, USA in 18 hours 45 minutes

1928 Canadian National Race

A professional marathon swim was held on August 23rd 1928 in a 16.1 km Lake Ontario buoy course

1. Ethel Hertle Gary in 5 hours 34 minutes
2. Olive Gatterdam, USA in 5 hours 37 minutes
3. Ruth Tower Corsan in 6 hours 3 minutes
4. Jane Thoms, USA in 6 hours 12 minutes
5. Anna Benoit, USA in 6 hours 17 minutes
6. Gertrude Ederle, 22, USA in 6 hours 23 minutes
7. Mae Elwell, 19, USA in 6 hours 38 minutes
8. Helene Fernandez Galand, Canada
9. Geraldine Hager, USA
10. Jessie Chester, USA
11. Hazel Robinson, USA
12. Daisy King Shaw, Canada
13. Agnes Chester, USA
14. Lucy Dimond, USA
15. Edythe Hardy, Canada
16. Martha Stager, USA

1929 Canadian National Races

Professional marathon swims were held on August 23rd and 28th 1929 in a 16.1 km and a 24.1 km Lake Ontario buoy course, respectively.

1. Martha Norelius, 18, USA in 5 hours 24 minutes, 16.1 km
2. Ruth Tower Corsan, USA in 5 hours 31 minutes, 16.1 km
3. Evelyn Armstrong, USA in 5 hours 53 minutes, 16.1 km
4. Leah Riley, 16, USA in 5 hours 56 minutes, 16.1 km
5. Ethel Hertle Gary, USA in 6 hours 2 minutes , 16.1 km

1. Edward Keating, 27, USA in 8 hours 18 minutes, 24.1 km
2. Ernst Vierkötter, 28, Germany in 8 hours 31 minutes, 24.1 km
3. Norman Ross, 34, USA in 8 hours 49 minutes, 24.1 km
4. Isadore Spondor, Canada in 9 hours 0 minutes, 24.1 km
5. Mendel Burditt, Canada in 9 hours 15 minutes, 24.1 km
6. Myron Cox, USA in 10 hours 2 minutes, 24.1 km

1930 Canadian National Races

Professional marathon swims were held on August 22nd and 27th 1930 in a 16.1 km and a 24.1 Lake Ontario buoy course, respectively.

1. Margaret Ravior, USA in 5 hours 31 minutes, 16.1 km
2. Ruth Tower Corsan, USA in 5 hours 35 minutes, 16.1 km
3. Ethel Hertle Gary, USA in 5 hours 51 minutes, 16.1 km

1. Marvin Nelson, USA in 7 hours 43 minutes, 24.1 km
2. Isadore Spondor, Canada 7 hours 56 minutes, 24.1 km
3. Bill Goll, USA in 8 hours 23 minutes, 24.1 km
4. George Blagden, USA in 8 hours 25 minutes , 24.1 km
5. Ernst Vierkötter, 29, Germany in 8 hours 30 minutes, 24.1 km
6. Norman Ross, 35, USA in 8 hours 58 minutes, 24.1 km

1931 Canadian National Races

A professional marathon swim was held on a 16.1 km Lake Ontario buoy course.

1. Margaret Ravior, USA in 4 hours 56 minutes
2. Ethel Hertle Gary, USA in 5 hours 8 minutes
3. Ethel McGarry, USA in 5 hours 12 minutes
4. Leah Riley, 18, USA in 5 hours 16 minutes
5. Evelyn Armstrong, USA in 5 hours 20 minutes
6. Ruth Downing, Canada in 5 hours 37 minutes

1931 Canadian National Races

A professional marathon swim was held on September 2nd 1931 in a 24.1 km Lake Ontario buoy course.

1. George Young, 22, Canada in 8 hours 8 minutes
2. Bill Goll, USA in 9 hours 25 minutes
3. Warren Anderson, Canada in 12 hours 9 minutes

1932 Canadian National Races

Professional marathon swims were held on August 26th and August 31st 1932 in a 16.1 km and a 24.1 km Lake Ontario buoy course, respectively.

1. Margaret Ravior, USA in 5 hours 22 minutes, 16.1 km
2. Evelyn Armstrong, USA in 5 hours 37 minutes, 16.1 km
3. May Looney, USA in 5 hours 42 minutes, 16.1 km
4. Dorothy Nalevaiko, USA in 5 hours 59 minutes, 16.1 km
5. Ruth Tower Corsan, USA in 6 hours 3 minutes, 16.1 km
6. Ruth Downing, Canada in 6 hours 8 minutes, 16.1 km

1. George Blagden, USA in 7 hours 19 minutes, 24.1 km
2. Giovanni Gambi, Italy in 7 hours 24 minutes, 24.1 km
3. Isadore Spondor, Canada in 7 hours 30 minutes, 24.1 km
4. Marvin Nelson, USA in 7 hours 38 minutes, 24.1 km
5. Bill Goll, USA in 7 hours 412 minutes, 24.1 km
6. Harry Glancy, USA in 8 hours 11 minutes, 24.1 km

1933 Canadian National Races

Professional marathon swims were held on August 25th 1933 in a 24.1 km and a 16.1 km Lake Ontario buoy course

1. Marvin Nelson, USA in 7 hours 0 minutes, 24.1 km
2. Bill Goll, USA in 7 hours 18 minutes, 24.1 km
3. Frank Pritchard, USA in 7 hours 20 minutes, 24.1 km
4. Harry Glancy, USA in 7 hours 36 minutes, 24.1 km
5. Stanley Pritchard in 7 hours 44 minutes, 24.1 km
6. Eli Radakovitch in 8 hours 1 minutes, 24.1 km

1. Ruth Tower Corsan, USA in 5 hours 28 minutes, 16.1 km
2. Evelyn Armstrong, USA in 5 hours 31 minutes, 16.1 km
3. Dorothy Nalevaiko, USA in 5 hours 34 minutes, 16.1 km
4. Leah Riley, 20, USA in 5 hours 34 minutes, 16.1 km
5. May Looney, USA in 5 hours 37 minutes, 16.1 km
6. Lucy Spence, Canada in 5 hours 43 minutes, 16.1 km

1934 Canadian National Races

Professional marathon swims were held in 24.1 km and 8.05 km Lake Ontario buoy courses.

1. Marvin Nelson, USA in 7 hours 47 minutes, 24.1 km
2. Bill Goll, USA in 8 hours 14 minutes, 24.1 km
3. John Cairo in 8 hours 47 minutes, 24.1 km
4. Dan Dembicki in 9 hours 26 minutes, 24.1 km
5. Bill Sadlo, USA in 9 hours 58 minutes, 24.1 km

1. May Looney, USA in 2 hours 28 minutes, 8.05 km
2. Janet Sheather, Canada in 2 hours 33 minutes, 8.05 km
3. Charlotte Acres, Canada in 2 hours 35 minutes, 8.05 km
4. Eva Bein, USA in 2 hours 39 minutes, 8.05 km
5. Ruth Downing, Canada in 2 hours 41 minutes, 8.05 km
6. Mona Looney, USA in 2 hours 43 minutes, 8.05 km

1935 Canadian National Races

A professional marathon swim was held in a 8.05 km Lake Ontario buoy course.

1. Charlotte Acres, Canada in 2 hours 31 minutes
2. Eva Bein, USA in 2 hours 32 minutes
3. Nell Hurley, USA in 2 hours 33 minutes
4. Janet Sheather, Canada in 2 hours 37 minutes
5. May Looney, USA in 2 hours 37 minutes
6. Evelyn Armstrong, USA in 2 hours 44 minutes

1. Giovanni Gambi, Italy in 2 hours 8 minutes
2. Frank Pritchard, USA in 2 hours 11 minutes
3. William Nolan in 2 hours 13 minutes
4. Sam Shields, USA in 2 hours 14 minutes
5. Clarence Ross in 2 hours 17 minutes
6. Wilson Padgett in 2 hours 20 minutes
7. Bill Goll, USA in 2 hours 21 minutes

1936 Canadian National Races

Professional marathon swims were held in 8.05 km and 4.8 km Lake Ontario buoy courses.

1. Frank Pritchard, USA in 2 hours 7 minutes, 8.05 km
2. Warren Priddy in 2 hours 23 minutes, 8.05 km
3. Connie Gareau in 2 hours 28 minutes, 8.05 km
4. Nicholas Ostapyk in 2 hours 32 minutes 1 second, 8.05 km
5. John Cairo in 2 hours 32 minutes 10 seconds, 8.05 km
6. William Nolan in 2 hours 36 minutes, 8.05 km
7. Richard Brown in 2 hours 37 minutes, 8.05 km

1. Susan Robertson, USA in 1 hour 23 minutes 11 seconds, 4.8 km
2. May Looney, USA in 1 hour 23 minutes 36 seconds, 4.8 km
3. Lucy Spence, Canada in 1 hour 23 minutes 36 seconds, 4.8 km
4. Florence Southard, USA in 1 hour 29 minutes, 4.8 km
5. Mona Looney, USA in 1 hour 30 minutes, 4.8 km
6. Margaret Gribble, USA in 1 hour 31 minutes, 4.8 km

1937 Canadian National Races

Professional marathon swims were held on 16.1 km and 4.8 km Lake Ontario buoy courses.

1. Frank Pritchard, USA in 4 hours 19 minutes, 16.1 km
2. William Nolan in 4 hours 25 minutes, 16.1 km
3. Giovanni Gambi, Italy in 4 hours 38 minutes, 16.1 km
4. Ben Gazel in 4 hours 41 minutes, 16.1 km
5. Stanley Pritchard in 4 hours 50 minutes, 16.1 km
6. Renato Bacigalupo in 4 hours 54 minutes, 16.1 km
7. Ed Faulkner in 4 hours 56 minutes, 16.1 km
8. Bill Sadlo in 4 hours 57 minutes, 16.1 km
9. Haward Norton in 5 hours 8 minutes, 16.1 km
10. Nicholas Ostapyk in 5 hours 11 minutes, 16.1 km

1. Lenore Kight Wingard, USA in 1 hour 21 minutes, 4.8 km
2. May Looney, USA in 1 hour 24 minutes, 4.8 km
3. Susan Robertson, USA in 1 hours 25 minutes, 4.8 km
4. Florence Southard, USA in 1 hour 28 minutes, 4.8 km
5. Eva Bein, USA in 1 hour 28 minutes 33 seconds, 4.8 km

1947 Canadian National Races

Professional marathon swims were held on 8.05 km and 16.1 km Lake Ontario buoy courses on August 27th and 29th 1947, respectively.

1. Berneice Looney, USA in 2 hours 27 minutes
2. Winnie Roach, Canada in 2 hours 40 minutes
3. May Looney, USA in 2 hours 44 minutes
4. Irene Barr van Fleet, Canada in 2 hours 49 minutes
5. Ruth Downing, Canada in 2 hours 57 minutes
6. Margie Thompson, Canada in 3 hours 2 minutes

1. Ben Gazel in 4 hours 44 minutes
2. Jerry Kerschner, 22, USA in 4 hours 50 minutes
3. Steve Wozniak, USA in 5 hours 5 minutes
4. Egbert Courage in 5 hours 26 minutes
5. Thomas Park, 23, Canada in 5 hours 36 minutes
6. Cliff Lumsdon, 16, Canada in 5 hours 48 minutes

1948 Canadian National Races

Professional marathon swims were held on 8.05 km and 16.1 km Lake Ontario buoy courses on September 1st and 3rd 1948, respectively.

1. Berneice Looney, USA in 2 hours 31 minutes, 8.05 km
2. May Looney, USA in 2 hours 46 minutes, 8.05 km
3. Winnie Roach, Canada in 2 hours 52 minutes, 8.05 km
4. Marion Townsend, Canada in 3 hours 4 minutes, 8.05 km
5. Isobel O’Rourke, Canada in 3 hours 24 minutes, 8.05 km
6. Edith Crawford, Canada in 4 hours 9 minutes, 8.05 km

1. Steve Wozniak, USA in 4 hours 29 minutes , 16.1 km
2. Ben Gazel in 4 hours 34 minutes, 16.1 km
3. Jerry Kerschner, 23, USA in 4 hours 36 minutes, 16.1 km
4. Bob Pirie in 4 hours 41 minutes, 16.1 km
5. Cliff Lumsdon, 17, Canada in 4 hours 47 minutes, 16.1 km
6. Jacques Amyot, 23, Canada in 5 hours 16 minutes, 16.1 km

1949 Canadian National Races

Professional marathon swims were held on 8.05 km and 16.1 km Lake Ontario buoy courses on August 31st and September 2nd 1949, respectively.

1. Berneice Looney, USA in 2 hours 33 minutes, 8.05 km
2. Winnie Roach, Canada in 2 hours 59 minutes, 8.05 km
3. Jean Rolph, Canada in 3 hours 13 minutes, 8.05 km
4. Margaret Giles, Canada in 3 hours 23 minutes, 8.05 km
5. Barbara Elliott, Canada in 3 hours 43 minutes , 8.05 km
6. Angela LePage, Canada in 4 hours 4 minutes, 8.05 km

1. Cliff Lumsdon, 18, Canada in 7 hours 54 minutes , 24.1 km
2. Ben Gazel in 8 hours 21 minutes, 24.1 km
3. Bill Sadlo, 49, USA in 9 hours 44 minutes, 24.1 km

1950 Canadian National Race

A professional marathon swim held on August 29th 1950 on a 24.1 km Lake Ontario buoy course.

1. Cliff Lumsdon, 19, Canada in 7 hours 18 minutes
2. Thomas Park, 26, Canada in 7 hours 29 minutes
3. Ben Gazel in 7 hours 36 minutes
4. Bill Goll, USA in 8 hours 4 minutes
5. Jacques Amyot, 25, Canada in 9 hours 12 minutes
6. Charles Grover, USA in 8 hours 32 minutes
7. Henry Pferr, 36, USA in 9 hours 42 minutes
8. John Jaremey, 31, Canada in 10 hours 5 minutes
9. Michael Sadlo in 10 hours 19 minutes
10. M Chrostowsksi in 10 hours 35 minutes

1951 Canadian National Races

A professional marathon swim was held on August 29th 1951 on a 16.1 km Lake Ontario buoy course.

1. Jerry Kerschner, 26, USA in 4 hours 26 minutes
2. George Bevan in 4 hours 31 minutes
3. Cliff Lumsdon, 20, Canada in 4 hours 32 minutes
4. Steve Wozniak, USA in 4 hours 36 minutes
5. Forbes Norris in 4 hours 37 minutes
6. Paul Malloney in 4 hours 38 minutes

1952 Canadian National Races

A professional marathon swim was held on August 22nd 1952 in a 16.1 km Lake Ontario buoy course.

1. Cliff Lumsdon, 21, Canada in 4 hours 24 minutes
2. Forbes Norris in 4 hours 27 minutes
3. Steve Wozniak, USA in 4 hours 40 minutes
4. Thomas Park, 28, Canada in 4 hours 48 minutes
5. Hassan Abou Bakr, Egypt in 5 hours 5 minutes
6. Saied El Arabi, Egypt in 5 hours 8 minutes

1953 Canadian National Races

A professional marathon swim was held on September 9th 1953 in a 16.1 km Lake Ontario buoy course.

1. Cliff Lumsdon, 22, Canada in 4 hours 26 minutes
2. Forbes Norris in 4 hours 29 minutes
3. George Bevan in 4 hours 40 minutes
4. Charles Grover, USA in 5 hours 26 minutes
5. Bill Goll, USA in 5 hours 30 minutes
6. Jack Rosen in 5 hours 36 minutes

1955 Canadian National Race

A professional marathon swim was held in a 51.5 km Lake Ontario buoy course. 35 starters dropped out. Cliff Lumsdon was the only finisher who won $84,000 in cash prizes, a hunting lodge, and a house.

1. Cliff Lumsdon, 24, Canada in 19 hours 48 minutes

1961 Canadian National Races

A professional marathon swim was held on August 29th 1961 in a 24.1 km Lake Ontario buoy course.

1. Herman Willemse, 27, Netherlands in 6 hours 54 minutes
2. Thomas Park, 37, Canada in 7 hours 30 minutes
3. Greta Anderson, 34, USA in 7 hours 33 minutes
4. Cliff Lumsdon, 30, Canada in 7 hours 36 minutes
5. Regent Lacoursiere, 26, Canada in 7 hours 39 minutes
6. Helge Jensen, 24, Denmark in 8 hours 1 minute
7. Mary Kok, Netherlands in 8 hours 10 minutes

1962 Canadian National Races

A professional marathon swim was held on August 18th 1962 in a 24.1 km Lake Ontario buoy course.

1. Herman Willemse, 28, Netherlands in 6 hours 38 minutes
2. Cliff Lumsdon, 31, Canada in 7 hours 26 minutes
3. Alfredo Camarero, 31, Argentina in 7 hours 31 minutes 10 seconds
4. Regent Lacoursiere, 27, Canada in 7 hours 31 minutes 11 seconds
5. Marty Sinn, USA in 7 hours 31 minutes 45 seconds
6. Mary Kok, Netherlands in 7 hours 34 minutes
7. Thomas Park, 38, Canada in 7 hours 53 minutes

1963 Canadian National Race

A professional marathon swim was held on August 16th 1963 on a 24.1 km Lake Ontario buoy course.

1. Abdel Latif Abou Heif, 33, Egypt in 7 hours 37 minutes
2. Marty Sinn, USA in 7 hours 39 minutes
3. Herman Willemse, 29 Netherlands in 7 hours 44 minutes
4. George Park, 33, Canada in 7 hours 52 minutes
5. Alfredo Camarero, 32, Argentina in 7 hours 55 minutes
6. Cliff Lumsdon, 32, Canada in 7 hours 58 minutes
7. Syder Guiscardo, Argentina in 8 hours 29 minutes

1978 Canadian National Race

A 51 km professional marathon swim was held on August 16th 1978 from Niagara-on-the-Lake to Ontario Place.

1. John Kinsella, 25, USA in 13 hours 49 minutes
2. Claudio Plit, 23, Argentina in 15 hours 1 minute
3. Raul Villagomez, 27, Mexico in 15 hours 9 minutes
4. Magdy Mandour, 23, Egypt in 15 hours 19 minutes
5. Bill Heiss, 26, USA in 15 hours 57 minutes

Lake Ontario, South to North Crossings

1. Marilyn Bell, 16, Canada in 20 hours 55 minutes in September 1954, 51.5 km
2. John Jaremey, 36, Canada in 21 hours 13 minutes in July 1956, 47 km
3. Brenda Fisher, 28, Great Britain in 18 hours 51 minutes in August 1956, 47 km
4. Bill Sadlo, 57, USA in 25 hours 1 minute in August 1957, 49 km [24-hour Club]
5. Jim Woods, 41, USA in 18 hours 35 minutes in August 1957, 49 km
6. Cindy Nicholas, 16, Canada in 15 hours 10 minutes in August 1974, 49 km
7. Debbie Roach, 17, Canada in 18 hours 30 minutes in August 1975, 49 km
8. Angela Kondrak, 17, Canada in 23 hours 48 minutes in August 1976, 49 km
9. Kim Lumsdon, 20, Canada in 21 hours 27 minutes in August 1976, 49 km
10. Loreen Passfield, 21, Canada in 15 hours 43 minutes in September 1979, 49 km
11. Jocelyn Muir, 15, Canada in 15 hours 55 minutes in September 1981, 49 km
12. Cam Kamula, 29, Canada in 20 hours 7 minutes in August 1984, 49 km
13. Kim Middleton, 27, Canada in 18 hours 34 minutes in August 1985, 50.5 km
14. Rick Wood, 31, Canada in 21 hours 33 minutes in August 1989, 50.5 km
15. Vicki Keith, 28, Canada in 31 hours 0 minutes in September 1989, 49 km [24-hour Club]
16. Paolo Pinto, 52, Italy in 23 hours 57 minutes in July 1990, 50.5 km
17. John Scott, 32, Canada in 14 hours 50 minutes in August 1992, 50.5 km
18. Ingrid Martin, 38, Australia in 23 hours 25 minutes in August 1996, 50.5 km
19. Paula Stephanson, 18, Canada in 22 hours 30 minutes in August 1996, 50.5 km
20. Gregg Taylor, 19, Canada in 19 hours 23 minutes in August 2003, 50.5 km
21. Melissa Brannagan, 23, Canada in 16 hours 11 minutes in August 2005, 50.5 km
22. Kim Lumsdon, 49, Canada in 26 hours 38 minutes in August 2006, 50.5 km [24-hour Club]
23. Samantha Whiteside, 16, Canada in 15 hours 11 minutes in August 2006, 50.5 km
24. Colleen Shields, 54, Canada in 16 hours 30 minutes in August 2006, 50.5 km
25. Stephanie Hermans, 21, Canada in 18 hours 5 minutes in August 2007, 50.5 km
26. Shaun Chisholm, 40, Canada in 19 hours 23 minutes in August 2008, 50.5 km
27. Jade Scognamillo, 15, Canada in 19 hours 59 minutes in August 2009, 50.5 km
28. Miguel Vadillo Sanchez, 40, Mexico in 18 hours 3 minutes in August 2010, 50.5 km
29. Rebekah Boscariol, 17, Canada in 15 hours 33 minutes in August 2011, 50.5 km
30. Christine Arsenault, 35, Canada in 22 hours 22 minutes in August 2011, 50.5 km
31. Annaleise Carr-Haley, 14, Canada in 26 hours 40 minutes in August 2012, 50.5 km [24-hour Club]
32. Ashleigh Beacham, 15, Canada in 18 hours 22 minutes in August 2013, 50.5 km
33. Trinity Arsenault, 15, Canada in 18 hours 22 minutes in August 2014, 50.5 km
34. Colleen Shields, 62, Canada in 21 hours 33 minutes in August 2014, 50.5 km
35. Michael McIsaac, 32, Canada in 22 hours 23 minutes in August 2015, 50.5 km
36. Loren King, 48, Canada in 18 hours 35 minutes in August 2016, 50.5 km
37. Pat Gallant-Charette, 66, USA in 24 hours 28 minutes in August 2017 [24-hour Club]
38. Elizabeth Fry, 58, USA in 15 hours 46 minutes in September 2017, 50.5 km
39. Victor Lal, 21, Canada in 21 hours 5 minutes in September 2018, 49 km
40. Jillian Best, 34, Canada in 18 hours 36 minutes in August 2021, 50.5 km
41. Juan Gabriel Acosta, 38, Colombia in 18 hours 58 minutes in August 2021, 50.5 km
42. Greg Maitinsky, 46, Canada in 16 hours 16 minutes in August 2022, 50.5 km
43. Bryce Croll, 39, Canada in 18 hours 32 minutes in September 2022, 50.5 km
44. Jessi Harewicz, 41, Canada in 22 hours 7 minutes in July 2024, 50.5 km
45. John Zemaitis, 42, USA in 17 hours 17 minutes in July 2025, 50.5 km
46. Joe Zemaitis, 45, USA in 17 hours 17 minutes in July 2025, 50.5 km
47. William Leonard, 46, Canada in 14 hours 45 minutes in August 2025, 50.5 km
48. Lev Goldberg, Canada in 24 hours 25 minutes in September 2025, 50.5 km [24-hour Club]
49. Attila Manyoki, 52, Hungary in 16 hours 8 minutes in July 2026, 50.5 km
50. Michael Pollanen, 57, Canada in 17 hours 46 minutes in August 2026, 50.5 km

Niagara River Mouth Course (Lake Ontario, South to North Crossings)

1. Marilyn Korzekwa, 26, Canada in 21 hours 29 minutes in September 1983, 44.2 km
2. Vicki Keith, 27, Canada in 23 hours 33 minutes in August 1988, 44.2 km
3. Bob Weir, 46, Canada in 22 hours 8 minutes in August 1989, 44.2 km
4. Colleen Shields, 38, Canada in 17 hours 56 minutes in August 1990, 44.2 km
5. Patty Thompson, 45, Canada in 19 hours 18 minutes in August 1991, 44.2 km
6. Carlos Costa, 20, Canada in 32 hours 43 minutes in July 1993, 44.2 km [24-hour Club]
7. Rick Goodwin, 36, Canada in 27 hours 6 minutes in August 1994, 44.2 km [24-hour Club]
8. Nicole Mallette, 31, Canada in 16 hours 10 minutes in August 1997, 44.2 km
9. Dan Foster, 33, Canada in 19 hours 12 minutes in August 1998, 44.2 km
10. Peter Gibbs, 56, Barbados in 18 hours 40 minutes in August 2004, 44.2 km
11. Jay Serdula, 35, Canada in 41 hours 1 minute in July 2008, 44.2 km [24-hour Club]
12. Suzanne Robinson, 40, Canada in 24 hours 28 minutes in August 2010, 44.2 km [24-hour Club]
13. Mark Sheridan, 49, Great Britain in 18 hours 59 minutes in August 2022, 44.2 km
14. Maggie Regan, 32, USA in 14 hours 8 minutes in August 2023, 44.2 km
15. Cinti Cseuz, 48, Canada in 21 hours 8 minutes in August 2024, 44.2 km

North to South Crossings of Lake Ontario

1. Diana Nyad, 25, USA in 18 hours 15 minutes in August 1974, 49 km
2. Marilyn Korzekwa, 27, Canada in 21 hours 0 minutes in August 1984, 45.8 km
3. Vicki Keith, 25, Canada in 26 hours 59 minutes in August 1986, 45.8 km [24-hour Club]
4. Kim Middleton, 35, Canada in 29 hours 0 minutes in September 1993, 46 km [24-hour Club]
5. Kim Middleton, 35, Canada in 26 hours 14 minutes in July 1994, 46 km [24-hour Club]

West Lake Ontario Crossings (Oakville course)

1. Melanie Price, 39, Canada in 18 hours 9 minutes in August 2011, 41 km
2. Madhu Nagaraja, 41, India in 24 hours 26 minutes in July 2012, 41 km [24-hour Club]
3. Rob Kent, 47, Canada in 20 hours 52 minutes in August 2012, 41 km
4. Robert McGlashan, 40, Canada in 19 hours 49 minutes in August 2021, 41 km
5. Molly Bent, Canada in 15 hours 23 minutes in August 2024, 33 km

East Lake Ontario Crossings (Kingston course)

1. John Munro, 51, Canada in 18 hours 48 minutes in August 2001, 35 km
2. Vicki Keith, 40, Canada in 18 hours 48 minutes in August 2001, 35 km
3. John Munro, 53, Canada in 35 hours 15 minutes in August 2003, 55 km [24-hour Club]
4. Jenna Lambert, 15, Canada in 32 hours 18 minutes in July 2006, 33 km [24-hour Club]
5. Natalie Lambert, 14, Canada in 23 hours 15 minutes in August 2007, 55 km

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