# List of multisport and triathlon fatalities

This short description is INTENTIONALLY "none" &#x2D; please see WP:SDNONE before you consider changing it! This is a sortable list of multisport and triathlon fatalities.
It contains information on athletes, spectators or staff who died as a result of participating in a multisport event or triathlon.
| Country of Race | Name | Age | Date of Race | Name of Multisport or Triathlon Race | Location | Cause/Other Notes | Discipline |
| Australia | Unknown | 60s | 2/8/2025 | Coles Bay Triathlon | Tasmania | TBD | Swim |
| US | Unknown | 46 | 12/08/2024 | Ironman 70.3 Indian Wells | California | TBD | Swim |
| Croatia | Unknown | 50 | 10/20/24 | Ironman 70.3 Porec | Porec | TBD | Swim |
| Spain | Mark Stokes | 57 | 10/17/24 | World Triathlon Championship | Torremolinos | TBD | Run |
| Spain | Roger Mas Colomer | 79 | 10/17/24 | World Triathlon Championship | Torremolinos | TBD | Swim |
| Spain | Elena Smirnova | 41 | 10/6/2024 | Ironman 70.3 Calella-Barcelona | Calella | TBD | Swim |
| Taiwan | Mr. Liu | 65 | 9/22/2024 | Force 2024 Hualien Triathlon | Hualien County | Drowning | Swim |
| UK | John Sanders | 61 | 8/24/2024 | Triathlon England National Club Relays | Nottinghamshire | TBD | After |
| US | Richard DiStefano | 65 | 8/18/2024 | Cazenovia | New York | TBD | Swim |
| US | Lazar Đukić | 28 | 8/8/2024 | Crossfit Games | Texas | TBD | Swim |
| US | UNK | TBD | 7/21/2024 | Ironman 70.3 Oregon | Oregon | TBD | Swim |
| US | UNK | TBD | 7/20/2024 | Nantucket Triathlon | Massachusetts | Pulled from the 600 yard swim | Swim |
| Philippines | UNK | TBD | 7/14/2024 | Ironman 5150 Bohol | Bohol | TBD | Swim |
| Korea | Mr. Kim | 62 | 6/2/2024 | Challenge Gunsan-Saemangeum | Gunsan | Police believe heart attack | Swim |
| US | Amy Rogers Wolfenden | 50 | 5/19/2024 | XTERRA North American Championship | Alabama | TBD | Swim |
| US | Paul Lachiewicz | 73 | 5/5/2024 | White Lake | North Carolina | Unresponsive 400 yards in | Swim |
| US | Jean-Francois Alain | 49 | 4/7/2024 | Ironman 70.3 Galveston | Texas | Requiring medical attention 950m in | Swim |
| Colombia | Jorge Zambrano | 34 | 3/17/2024 | Xseries Tri Fest Sai | San Andres | Heart attack | Swim |
| US | Rick Betton | 71 | 3/10/2024 | Azalea Sprint | North Carolina | Collapsed after 300 yard seeded pool swim | Swim |
| US | Joyce Allen | 62 | 12/10/2023 | Key West Triathlon | Florida | Vehicle collision | Bike |
| Australia | UNK | 53 | 11/5/2023 | Noosa | Queensland | found unresponsive, was pulled from the water, and died on the scene | Swim |
| New Zealand | Rachel James | 50 | 11/4/2023 | Iron Maori | Napier | Sudden death | Swim |
| India | Kamakhya Siddharth | 26 | 10/8/2023 | Ironman 70.3 Goa | Goa | suffered multiple organ failure | Run |
| US | Tim Shelton | 53 | 10/7/2023 | Ironman 70.3 Memphis | Tennessee | cardiac arrest | Swim |
| Malaysia | Muhaini Mahmud | 44 | 10/7/2023 | Ironman 70.3 Langkawi | Langkawi | TBD | Swim |
| Spain | Unnamed | UNK | 10/1/2023 | Ironman 70.3 Barcelona | Barcelona | UNK | Bike |
| UK | John Griffin | 62 | 9/20/2023 | Oxfordshire Tri Series | Oxfordshire | Single cyclist bike accident | Bike |
| US | Dax Bakken | 51 | 9/10/2023 | Ironman 140.6 Wisconsin | Wisconsin | TBD | Bike |
| US | Scott Morrow | 58 | 8/26/2023 | Tri the Wildwoods | New Jersey | Difficulty in the water | Swim |
| Finland | Cheryl Eng Lucero | 66 | 8/26/2023 | Ironman 70.3 World Championship | Lahti | Difficulty in the water | Swim |
| Ireland | Ivan Chittenden | 64 | 8/20/2023 | Ironman 70.3 Ireland Cork | Youghal | Acute cardiorespiratory failure due to drowning | Swim |
| Ireland | Brendan Wall | 44 | 8/20/2023 | Ironman 70.3 Ireland Cork | Youghal | Acute cardiorespiratory failure due to drowning | Swim |
| Estonia | Unnamed | UNK | 8/6/2023 | Ironman 70.3 Tallinn | Tallinn | Found unresponsive in Lake Harku | Swim |
| France | Sarah Fagan | 48 | 7/28/2023 | Alpe D'Huez Triathlon | Allemon | Found unresponsive in Lake Verney | Swim |
| Canada | Alex Gress | 50 | 7/9/2023 | Ironman 70.3 Muskoka | Huntsville, Ontario | | Swim |
| US | Jordan Whitney Taylor | 34 | 6/25/2023 | San Diego International Triathlon (SDIT) | San Diego, CA | Found unresponsive during swim | Swim |
| Germany | Unnamed | 70 | 6/4/2023 | Ironman 140.6 Hamburg | Hamburg | Motorcycle rider died in collision with athlete. | Bike |
| UK | Andrew Ireland | 61 | 5/28/2023 | Swansea Triathlon | Swansea, Wales | Athlete required medical attention during swim | Swim |
| US | Marshall Martin | 58 | 5/21/2023 | Ironman 70.3 Chattanooga | Chattanooga, TN | Bicycle accident, head, rib and other injuries. Taken to hospital, passed away on 5/29/2023 | Bike |
| France | Unnamed | UNK | 5/21/2023 | Ironman 70.3 Aix-en-Provence | Aix-en-Provence, Bouches-du-Rhône | During the beginning of the swim | Swim |
| Australia | Peter Tanham | 63 | 4/29/2023 | Busselton 100 | Floreat, Perth | Required medical attention on bike, taken to hospital and later pronounced dead | Bike |
| Philippines | Jerry Kasim | 49 | 3/26/2023 | Ironman 70.3 Davao | Davao City, Davao Region | Heart attack | Swim |
| Israel | Michael Ginor | 59 | 11/25/2022 | Ironman Israel Middle East Championship | Tiberias, Northern District | Suffered heart attack and found in distress during swim, taken to local hospital and later pronounced dead | Swim |
| US | Allen Simmons | 75 | 11/5/2022 | Ironman Florida | Panama City Beach, Florida | Required medical attention after finishing, taken to local hospital and later pronounced dead | Later |
| Portugal | Derrick Tee Hui Sheng | 36 | 10/15/2022 | Ironman 70.3 Portugal | Cascais, Libson | Required medical attention during swim, died in ambulance on the way to hospital | Swim |
| Brazil | Fernando Jorge Mendes Ahid | 58 | 10/9/2022 | Maranhense Triathlon Federation | Espigão Costeiro, São Luís | Had a sudden illness during the swimming test, taken to local hospital and later pronounced dead | Swim |
| US | Evelyn Lopez | 44 | 9/25/2022 | Ironman 70.3 Augusta | Augusta, Georgia | Became unresponsive during swim, taken to local hospital and later pronounced dead | Swim |
| US | Eduardo Munoz | 61 | 9/11/2022 | Ironman 70.3 Santa Cruz | Santa Cruz, California | Suffered heart attack and found unresponsive during swim, taken to local hospital and later pronounced dead | Swim |
| Germany | Rolf Felber | 67 | 8/28/2022 | Ironman 70.3 Duisburg | Duisburg, Rhineland | Found unresponsive shortly after beginning swim, taken to local hospital and pronounced dead upon arrival | Swim |
| US | Kevin Holt | 64 | 8/6/2022 | Ironman 70.3 Boulder | Boulder, Colorado | Hit head during swim, taken to local hospital and later pronounced dead due to lack of oxygen | Swim |
| Canada | Candace Nayman | 27 | 7/28/2022 | Toronto Triathlon Festival | Toronto, Ontario | Collapsed during swim, taken to local hospital and pronounced dead several days later, donated organs | Swim |
| Venezuela | Susana Lozada Forero | 32 | 7/16/2022 | El Desafío | Barinas, Barinas | Fainted during run, taken to local hospital and later pronounced dead due to acute dehydration and hypoglycemia | Run |
| US | William R. Harms | 51 | 6/26/2022 | Pleasant Prairie Triathlon | Pleasant Prairie, Wisconsin | Found unresponsive by racer during swim, taken to local hospital and later pronounced dead | Swim |
| US | Michael P. Bleacher | 70 | 6/12/2022 | Escape the Cape | Lower Township, New Jersey | Found "in-distress" during swim, taken to local hospital and later pronounced dead | Swim |
| UK | Andy Hey | 54 | 6/12/2022 | Ironman 70.3 Staffordshire | Staffordshire, England | Needed medical attention during swim, taken to local hospital and later pronounced dead | Swim |
| US | Curtis J. Wilson | 71 | 5/16/2022 | Bear Triathlon | Newark, Delaware | Needed CPR performed during swim, taken to local hospital and later pronounced dead | Swim |
| UK | Andrew Phillips | 56 | 5/28/2022 | Blenheim Palace Triathlon | Oxford | Hypoxic ischaemic encephalopathy and cardiac arrest | Swim |
| Portugal | Unnamed | UNK | 5/7/2022 | Challenge Lisboa | Lisboa | | Swim |
| Spain | Unnamed | 41 | 5/7/2022 | Ironman 70.3 Alcudia | Mallorca | | Swim |
| US | Daniel Winkler | 46 | 4/3/2022 | Ironman 70.3 Texas | Texas | | Swim |
| Chile | Renato Bastías | 38 | 1/9/2022 | Ironman 70.3 Pucon | Pucon | Heart Attack | Swim |
| US | Unnamed | 42 | 10/10/2021 | Ponte Vedra Beach Triathlon | Florida | Major Medical Event/Drowning | Swim |
| Mexico | Leticia Rico González | 51 | 9/26/2021 | Ironman 70.3 Cozumel | Cozumel, Quintana Roo | Pulled from the water during a swimming test, take to a local hospital and later pronounced dead | |
| US | George Hall | UNK | 9/26/2021 | Ironman 70.3 Augusta | Georgia | CPR was administered on the rescue boat while still in the water | Swim |
| UK | Unnamed | UNK | 9/11/2021 | Blenheim Palace Triathlon | Oxfordshire, England | | TBA |
| Canada | Unnamed | 47 | 8/1/2021 | Ironman 70.3 Calgary | Alberta | Drowning | Swim |
| Australia | Dave Hayes | UNK | 6/7/2021 | Ironman 70.3 Cairns | Queensland | | Swim |
| US | Gary Martinez | 51 | 5/1/2021 | Ironman 70.3 St. George | Utah | Massive Cardiac Event | Swim |
| Brazil | Paulo Pereira | 40-44 | 11/24/2019 | Ironman Cozumel | Cozumel | Heart Attack | Swim |
| Spain | Carl Cavanagh | 45 | 10/19/2019 | Challenge Peguera | Majorca | Drowning | Swim |
| Korea | Unnamed | 35 | 10/1/2019 | Unknown | Seoul | Drowning | Swim |
| US | Stephen Zamucen | 69 | 9/14/2019 | Nautica Malibu Triathlon | California | Sudden Cardiac Event | Later |
| France | Richard Glinski | 67 | 9/12/2019 | Ironman 70.3 World Championship | Nice | Drowning | Swim |
| US | Greg Misbach | 72 | 9/8/2019 | Rock the Bay San Diego Triathlon | California | Suffered cardiac arrest during swim | Swim |
| US | Mark Combs | 64 | 8/24/2019 | Lake Tahoe Triathlon | California | He called out for help in the water. Preliminary autopsy suggest coronary artery atherosclerosis | Swim |
| Australia | Loretto Harvey | 50 | 8/16/2019 | Townsville Triathlon | Queensland | Collapsed on run | Run |
| US | Christopher Zimmer | 68 | 8/4/2019 | Naperville Sprint Triathlon | Illinois | Crash | Bike |
| Philippines | Mario Marfori II | UNK | 8/4/2019 | Musaman TriDavnor Duathlon | Davao City | Occurred right after first run leg | Run |
| Portugal | Rafael S. | 24 | 8/1/2019 | Amizade Triathlon | Viana do Castelo | Suffered indisposition in the swimming segment, before sinking. He asked for help, but when a safety boat came closer, the body had already sunk. | Swim |
| US | Kristen J. Oswald | 44 | 7/28/2019 | Ironman 70.3 Ohio | Ohio | Struck by tractor-trailer | Bike |
| Finland | Unnamed man | UNK | 6/30/2019 | Ironman 70.3 Finland | Lahti | Suspected bout of illness | Swim |
| US | Quy P. Pham | 35 | 6/30/2019 | Robious Landing | Virginia | Drowning | Swim |
| Canada | Jill Levy Morris | 46 | 6/23/2019 | Ironman 70.3 Mont-Tremblant | Mont-Tremblant | Thoracic compression, with several of her internal organs crushed due to being run over by a race support vehicle | Bike |
| US | Michael McCulloch | 61 | 6/9/2019 | Ironman 70.3 Wisconsin | Wisconsin | Drowning | Swim |
| US | Todd Mahoney | 38 | 6/9/2019 | Ironman 70.3 Wisconsin | Wisconsin | Drowning | Swim |
| US | James Olayos JR | 31 | 6/8/2019 | Mighty Montauk | New York | | Run |
| US | Dennis McDaniels | 36 | 6/2/2019 | Escape The Cape | New Jersey | Cardiac arrest | Swim |
| US | Scott Beatse | 59 | 6/2/2019 | Lake Mills | Wisconsin | Medical event | Swim |
| Spain | Unnamed | 51 | 5/18/2019 | Ironman 140.6 Barcelona | Barcelona | Unnatural Death | Swim |
| US | David Schultz | 40 | 5/11/2019 | New England Season Opener | Massachusetts | Drowning | Swim |
| South Africa | Andre Trichardt | 48 | 4/7/2019 | Ironman 70.3 South Africa | Cape Town | Drowning | Swim |
| South Africa | Leon Stanviet | 63 | 4/7/2019 | Ironman 70.3 South Africa | Cape Town | Convulsions | Swim |
| Taiwan | ''Chang" | 45 | 3/3/2019 | WHISBIH Kaohsiung Aihe International Ironman | Taiwan | Abnormal condition | Swim |
| Brazil | Ludimilla Barbosa | 40 | 12/2/2018 | Local Tournament | Tocantins | Injured by propeller of lifeboat | Swim |
| Australia | Sam Horan | 45 | 11/4/2018 | Noosa | Noosa | Cardiac arrest leading to accident | Bike |
| US | Mark Wladecki | 60 | 8/11/2018 | Gibsonburg | Ohio | Hit by a car after missing stop sign | Bike |
| US | Scott Michaelis | 50 | 8/4/2018 | Ironman 70.3 Boulder | Colorado | Drowning | Swim |
| Malaysia | Tharm Wei Wong | 39 | 7/15/2018 | Port Dickson | Port Dickson | Drowning | Swim |
| Malaysia | Jeffrey Yuen | 42 | 7/15/2018 | Port Dickson | Port Dickson | Body found day after event; Drowning | Swim |
| US | Gary Grunwald | 61 | 6/10/2018 | USAT Nationals | Michigan | Had chest pains and shortness of breath during run | Run |
| US | Jim Hix | 75 | 8/11/2018 | USAT Age Group Nationals | Ohio | Drowning | Swim |
| UK | Unnamed | 43 | 6/2/2018 | SYWD Sprint | Barry Island | Cardiac arrest | Swim |
| UK | Sharon Lang | 40 | 4/29/2018 | Ironman 70.3 Marbella | Costa del Sol | Cardiac arrest | Swim |
| US | James Treadwell | 75 | 12/17/2017 | American Sprint & Duathlon | Florida | Collapse during swim | Swim |
| Brazil | Genilson Lima | 48 | 11/26/2017 | Ironman 70.3 Fortaleza | Fortaleza | Body recovered a day after the race | Swim |
| Italy | Jan Willem Koeleman | 54 | 10/28/2017 | Forte Village Challenge | Sardinia | Cardiac arrest | Swim |
| China | Martin So | 66 | 10/21/2017 | Hong Kong Life astc Sprint Asian Cup | Hong Kong | Cardiac arrest | Swim |
| Singapore | Steve Begley | 42 | 9/9/2017 | Singapore International | Singapore | Scottish rugby player; Undetected heart condition that led him to drown | Swim |
| Philippines | Eric Nadal Mediavillo | 47 | 8/6/2017 | Ironman 70.3 Philippines | Cebu | Cardiac arrest | Swim |
| UK | Douglas Waymark | 44 | 8/5/2017 | Marble Arch in Central London to Paris' Arc de Triomphe | London | Trouble during swim | Swim |
| Austria | Unnamed | 58 | 7/2/2017 | Ironman 140.6 Austria | Klagenfurt | Suddenly fell off his bike | Bike |
| Japan | Seito Fujii | 50 | 6/4/2017 | Watarase Recreation Area | Tochigi | Drowning | Swim |
| US | Glen Bruemmer | 54 | 4/22/2017 | Ironman 140.6 Texas | Texas | Unnatural Death | Swim |
| US | Kipp Kinsley | 25 | 8/26/2018 | Yankton | South Dakota | Cardiac arrest | Within 24 hours after the race- Kipp won 1st place |
| US | Vincent Fleck | 69 | 8/7/2016 | Smith Point Sprint | New York | Drowning | Swim |
| US | Michelle Walters | 34 | 8/7/2016 | Ironman 140.6 Boulder | Colorado | Died in a collision with a vehicle | Bike |
| Hungary | Radoslav Okruky | 41 | 7/30/2016 | Ironman 70.3 Budapest | Budapest | Collapsed during run | Run |
| US | Jeffrey James Stevens | 56 | 6/19/2016 | Rochester | Minnesota | Drowning | Swim |
| Australia | Unnamed | 47 | 6/12/2016 | Ironman 70.3 Cairns | Queensland | Swim portion, died in hospital later | Later |
| US | Samuel Fisher | 24 | 6/12/2016 | Stamford | Connecticut | Goldman Sachs analyst; Collapsed after finishing | Later |
| US | Gene Montague | 51 | 5/22/2016 | Ironman 70.3 Chattanooga | Tennessee | Cardiac arrest | Swim |
| US | Michael Wiggins | 42 | 4/30/2016 | Pelican Fest | Colorado | Atrial fibrillation | Swim |
| Germany | Unnamed | UNK | 4/17/2016 | Challenge Roth | Roth | Drowning | Swim |
| UK | Paul Gallihawk | 34 | 8/29/2015 | Ocean Lake | Kent | Drowning | Swim |
| US | Brian Godlove | 40 | 8/2/2015 | Ironman 140.6 Boulder | Colorado | Died three days after race from dehydration and muscle tissue breakdown. | Later |
| US | Colin Campbell | 27 | 9/11/2015 | Lake Livingston | Texas | Drowning | Swim |
| Germany | Ian O'May | 30 | 7/5/2015 | Ironman 140.6 Frankfurt | Frankfurt | Collapsed at end of race | Later |
| Australia | Erica Atkins | 43 | 6/14/2015 | Ironman 70.3 Cairns | Queensland | Pulled from water, died two days later in hospital | Later |
| UK | Daniel Cavanagh | 40 | 6/7/2015 | Bala Middle Distance Triathlon | North Wales | Heart attack | Bike |
| US | Wayne Stellar | 57 | 6/6/2015 | Kerr Lake | North Carolina | Drowning | Swim |
| US | Saadin Solah | 53 | 5/16/2015 | Sudbury Sprint | Connecticut | Hit by a pickup truck | Bike |
| Japan | Mototaka Kumagai | 72 | 5/5/2015 | Tokunoshima | Tokunoshima | Drowning | Swim |
| US | Felicia Williams | 44 | 4/25/2015 | St. Anthony's Meek and Mighty | Florida | Swimming pool event. | Swim |
| US | Paul Reynolds | 52 | 3/21/2015 | Waikoloa Beach | Hawaii | Medical emergency | Swim |
| Argentina | Ezequiel Osvaldo Gaspar | 21 | 2/1/2015 | Salta | Salta | Drowning | Swim |
| US | Roger Ackerman | 68 | 10/26/2014 | PPD Beach2Battleship | North Carolina | Medical event | Swim |
| Spain | Carmen Hernandez Paez | 48 | 10/4/2014 | Teide Xtreme | Tenerife | Heavy blow to the head | Bike |
| Spain | Unnamed Male | 41 | 10/4/2014 | Garmin Barcelona | Barcelona | | Swim |
| Mexico | Rocío Álvarez de Oyarzabal | 48 | 9/21/2014 | Ironman 70.3 Cozumel | Cozumel | Myocardial infarction | Swim |
| Australia | Peter Farlecas | 39 | 9/13/2014 | Ironman 70.3 Sunshine Coast | Mooloolaba | Cardiac arrest | Swim |
| US | Matthew Alan Cook | 37 | 8/31/2014 | Towne Lake | Texas | Drowning | Swim |
| France | Rob Evans | 30 | 8/24/2014 | Ironman 140.6 Nice | Nice | Lost control of bike and struck rock with head | Bike |
| Russia | Yegor Leontiev | 26 | 6/12/2014 | RUS Paratriathlon National Championships | Nizhny Novgorod | Collapsed on run, paramedics attempted lifesaving efforts for 1 hour | Run |
| US | Donald Bautel | 64 | 4/19/2014 | Escape from Fort De Soto | Florida | Drowning | Swim |
| Australia | Tom Lyons | 21 | 2/2/2014 | Hell of the West | Brisbane | Collapsed after end of race | Later |
| US | Don Green | 57 | 1/12/2014 | HITS Naples | Florida | Cardiac arrest | Swim |
| US | Patrick Hayden | 59 | 10/19/2013 | Pumpkinman | Colorado | Drowning | Swim |
| US | Bob Hartline | 62 | 10/13/2013 | Sherwood Island Sprint | Connecticut | Drowning | Swim |
| US | Christopher Eaton | 51 | 8/18/2013 | Luray | Virginia | Walked out of water communicating and passed shortly afterwards. Pulmonary embolism | Other |
| Spain | Unnamed | UNK | 6/13/2013 | Challenge Barcelona | Barcelona | Cardiac arrest | Swim |
| US | James Lawrence | 70 | 7/28/2013 | Crabman | Rhode Island | Cardiac arrest | Swim |
| US | Jeffrey Reed | 53 | 7/14/2013 | Catfish Sprint | Pennsylvania | Drowning | Swim |
| US | Michael Coyle | 38 | 7/13/2013 | Musselman | New York | Hit the back of an SUV parked on the side of the road | Bike |
| US | Lanlin Zhang | 31 | 7/13/2013 | Musselman | New York | Fell and lost control of bike | Bike |
| France | Unnamed | 30 | 6/24/2013 | Ironman 140.6 France | Nice | Crashed into wall | Bike |
| Switzerland | Unnamed | 59 | 6/23/2013 | Lake Sempach | Basel | Drowning | Swim |
| US | David Finley | 43 | 6/22/2013 | Ozark Valley | Missouri | Drowning | Swim |
| US | Michael Giardino | 48 | 6/19/2013 | Redondo Beach | California | Collapsed after completing swim | Swim |
| US | Ross Ehlinger | 46 | 3/3/2013 | Escape From Alcatraz | California | Cardiac arrest | Swim |
| South Africa | Kevin Staessen | 29 | 1/20/2013 | Ironman 70.3 South Africa | Cape Town | Cardiac Arrest | Swim |
| South Africa | Berton Bosman | 37 | 1/20/2013 | Ironman 70.3 South Africa | Cape Town | Cardiac Arrest | Swim |
| Hong Kong | Daniel Bagshaw | 27 | 10/14/2012 | Hong Kong ITU Asian Cup | Hong Kong | Collapsed right before end on run | Run |
| US | Gary Grant | 46 | 9/16/2012 | Dunkirk | New York | Hit cement barricade | Bike |
| US | Kendall Webb | 80 | 8/25/2012 | Surf Town | California | Collapse shortly after finishing | Later |
| US | Charles Cribbs Sr. | 69 | 8/19/2012 | Buckeye Challenge | Ohio | Drowning | Swim |
| US | Richard Angelo | 53 | 8/18/2012 | USAT Nationals | Vermont | Drowning | Swim |
| US | Matthew Sell | 58 | 8/12/2012 | Emmett's Most Excellent | Idaho | Drowning | Swim |
| US | Andy Naylor | 43 | 8/11/2012 | Ironman 140.6 U.S. Championship | New York | Medical event | Swim |
| Philippines | Ramon Igaña Jr. | 44 | 8/5/2012 | Ironman 70.3 Philippines | Cebu | Road conditions | Bike |
| US | Stan Bugarcic | 34 | 8/4/2012 | Greater Cleveland | Ohio | Drowning | Swim |
| US | Margaret Pometta | 50 | 7/15/2012 | Ironman 70.3 Vineman | California | Cardiac arrest | Swim |
| US | Jason Kirshner | 42 | 7/14/2012 | Dina LaVigna Breath of Life | California | Cardiac arrest | Swim |
| US | Sean Murphy | 44 | 6/23/2012 | Ironman 140.6 Coeur d"Alene | Idaho | Taken to hospital after struggling in water | Later |
| US | Doug Witmer | 42 | 6/17/2012 | High Cliff | Wisconsin | Drowning | Swim |
| US | Christopher Petty | 43 | 5/19/2012 | Turtle Crawl | Georgia | Cardiac arrest | Swim |
| Chile | Ivan Paez | 31 | 1/15/2012 | Ironman 70.3 Pucon | Pucon | Cardiac arrest | Bike |
| Mexico | Gerardo Sant n Pez | UNK | 9/25/2011 | Fourth Sports | Xochimilco | Physical condition | Swim |
| US | Steven J. Linthicum | 46 | 9/18/2011 | Dewey Sprint | Delaware | Cardiac arrest | Swim |
| US | John Park | 59 | 9/11/2011 | Nations | D.C. | Collapsed shortly after starting the bike event | Bike |
| US | Mark Wezca | 46 | 8/28/2011 | Ironman 140.6 Louisville | Kentucky | Cardiac arrest | Swim |
| US | David Aschauer | 58 | 8/28/2011 | Cape Elizabeth | Maine | Cardiac arrest | Swim |
| US | Michael Kudryk | 64 | 8/7/2011 | New York City | New York | Drowning | Swim |
| US | Amy Martich | 40 | 8/7/2011 | New York City | New York | Cardiac arrest | Swim |
| Belgium | Arthur Aghajanyan | 26 | 7/24/2011 | Ironman 70.3 Antwerp | Antwerp | crashed while descending on the bike course and suffered trauma to the head | Bike |
| US | Christopher Ludington | 57 | 6/11/2011 | Stowe | Vermont | Drowning | Swim |
| US | Ron Schafer | 53 | 9/11/2010 | Nautica Malibu | California | Collapsed from a stroke shortly after race | Later |
| UK | Ian Sloss | 64 | 8/8/2010 | London | London | Collapsed during swim and died two days later | Swim |
| US | Leslie Chariton | 60 | 7/31/2010 | Hayden View | Idaho | Cardiac Arrest | Swim |
| US | Derek Valentino | 40 | 6/27/2010 | Philadelphia Insurance | Pennsylvania | Drowning, body was found next day; significant legal case | Swim |
| US | Nicole Baird Buchholz | 24 | 6/20/2010 | Jacksonville Sprint Series | Florida | Crashed on bike due to ongoing medical issue | Bike |
| US | Bernadette Collins | 40 | 6/19/2010 | Eglin's My First Tri | Florida | Collapsed on run | Run |
| UK | Christopher Moran | 54 | 5/1/2010 | RAF Brize Norton | Oxon | Suffered heart failure | Run |
| Canada | Lor Porciuncula Jarin | 51 | 9/26/2009 | Mount Shasta Tinman | Siskiyou | Anoxia | Swim |
| US | Mary Ehrlinger | 38 | 9/16/2009 | Ironman 140.6 Wisconsin | Wisconsin | Unnatural Death | Swim |
| Canada | Walter Eugene Wiwchar | 66 | 8/30/2009 | Ironman 140.6 Canada | Penticton | Trouble during the latter half of the swim portion | Swim |
| Philippines | Juan Miguel Vazquez | 51 | 8/22/2009 | Ironman 70.3 Philippines | Cebu | Stroke | Swim |
| US | Kim Schmidt | 43 | 8/9/2009 | Elkhart Lake | Wisconsin | Drowning | Swim |
| US | Unnamed | UNK | 8/1/2009 | E.P. Tom Sawyer Triathlon | Kentucky | Hit by a drunk driver | Bike |
| Singapore | Calvin Lee Wee Sing | 42 | 8/1/2009 | OSIM Singapore | Singapore | Unnatural death | Swim |
| US | Daniel Murray | 33 | 7/11/2009 | The Pewaukee | Wisconsin | Drowning | Swim |
| US | Julie Silletti | 54 | 6/13/2009 | Elkhart Lake | Wisconsin | Drowning | Swim |
| US | Phillip Coulston | 63 | 8/24/2008 | Escape From The Rock | California | Cardiac arrest | Swim |
| US | Barbara Warren | 65 | 8/23/2008 | Santa Barbara | California | Broke her neck in a fall, paralyzed from the neck down, breathing with the help of a ventilator and signaled that she wanted the ventilator turned off | Bike |
| US | John Hobgood | 52 | 7/27/2008 | New Jersey State | New Jersey | Drowning, body was found next day | Swim |
| US | Donald Morehouse | 60 | 7/26/2008 | Spudman | Idaho | Drowning | Swim |
| US | Esteban Neira | 32 | 7/20/2008 | New York City | New York | Hypertensive heart disease | Swim |
| US | Patrick Findlay | 45 | 6/29/2008 | Pacific Crest | Oregon | Heart attack | Swim |
| US | Jim Goodman | 46 | 6/22/2008 | Hy-Vee | Iowa | Drowning | Swim |
| US | Patrick Kane | 38 | 5/10/2008 | Florida Panhandle . | Georgia | Drowning | Swim |
| US | Randolph Parnell | 51 | 5/3/2008 | CB&I | Texas | Drowning, but had heart issues | Swim |
| US | Dorothy Barnett-Griffin | 43 | 10/6/2007 | Ironman 140.6 Florida | Florida | Collapsed just after finishing swim | Swim |
| US | Daniel Eimermann | 55 | 9/15/2007 | Devil's Challenge | Wisconsin | Had pre-existing condition | Swim |
| US | Sara Lowes | 51 | 8/6/2007 | Alcatraz Challenge Aquathon | California | Drowning | Swim |
| US | Joseph J. Lyons Jr | 38 | 7/8/2007 | Cohasset | Massachusetts | Drowning | Swim |
| US | Kevin Hunt | 28 | 6/23/2007 | Ultra Max | Missouri | Drowning | Swim |
| Singapore | Thaddeus Cheong | 17 | 6/23/2007 | Singapore Bay Run | Singapore | Southeast Asia Games; Foamed at mouth after completing race | Later |
| US | Juli Wilson Marshall | 48 | 4/29/2007 | St. Anthony's | Florida | Broken nose in swim. 4,000 participants. | Swim |
| US | Barney Rice | 35 | 11/4/2006 | Ironman 140.6 Florida | Florida | Drowning | Swim |
| UK | Paul Simpson | 31 | 8/5/2006 | London | London | Cardiac arrest | Swim |
| US | Chris Eborn | 33 | 5/13/2006 | St. George | Utah | Cardiac arrest | Swim |
| Singapore | Ho Wai Piew | 40 | 10/22/2005 | New Balance Corporate | Singapore | Cardiac arrest | Swim |
| US | Artem Boris Groisman | 37 | 9/25/2005 | Mountain Man | Nevada | Seizure | Swim |
| US | Howard Garcia | 76 | 7/24/2005 | Boulder Peak | Colorado | Drowning | Swim |
| US | Patrick Bell | 23 | 6/19/2005 | Ashland Lions MetroWest | Massachusetts | Heart attack shortly after finishing | Later |
| Australia | Peter Semos | 37 | 11/7/2004 | Noosa | Noosa | Collapsed on run | Run |
| US | Mike Vieth | 58 | 8/3/2003 | Troika | Washington | Drowning | Swim |
| US | Wayne Scrimshaw | 48 | 5/26/2003 | Keauhou-Kona | Hawaii | Hit by a car | Bike |
| US | Jon Druhot | 36 | 7/21/2002 | Timberman | Minnesota | Cold water drowning | Swim |
| US | John Boland | 53 | 6/8/2002 | Ironman 140.6 Utah | Utah | Swim cancelled mid event, Drowning | Swim |
| US | Jeffrey Helfer | 37 | 7/14/2001 | Camp Pendleton International | California | Drowning | Swim |
| US | Perry Rendina | 45 | 5/20/2001 | Ironman 140.6 California | California | Slammed into a guard rail at the bottom of a hill | Bike |
| US | John Mawdslwy | 39 | 8/27/1995 | Mrs. T's | Illinois | Drowning | Swim |
| US | Mike Lanham | 42 | 8/21/1994 | Mrs. T's | Illinois | Cardiac arrest | Swim |
| US | James O'Rourke | UNK | 1991 | Spring Muscle Stretcher | Nebraska | Sudden cardiac arrest caused by a genetic condition | Run |
| US | Curtis Silvey | 17 | 8/21/1988 | Reston | Virginia | Drowning, water temperatures as low as 40 degrees | Swim |
| US | Unnamed | 15 | 7/26/1987 | San Luis Obispo Recreational | California | Struck by vehicle while crossing a highway | Bike |
| Japan | Yonezo Kasahara | 39 | 7/12/1987 | Miyakojima | Hirara | Drowning | Swim |
| US | Steven McAdams | 30 | 6/28/1987 | Governor's Cup | Colorado | Struck by vehicle | Bike |
| US | C. Frederick Kelley | 61 | 6/28/1987 | Farmington | Connecticut | Cardiac arrest | Swim |
| US | Seymour Leebowitz | 50 | 6/14/1987 | Craigville Beach | Massachusetts | Heart attack | Bike |
| US | Paul Childs | 20 | 9/7/1986 | Baptist Memorial Hospital | Missouri | Hit by car | Bike |
| US | David Daniels | 25 | 8/10/1986 | Muskegon | Michigan | Drowning | Swim |