Ironman Triathlon Explained

Ironman Triathlon
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An Ironman Triathlon is one of a series of long-distance triathlon races organized by the World Triathlon Corporation (WTC), consisting of a 2.41NaN1 swim, a 1121NaN1 bicycle ride and a marathon 26.221NaN1 run completed in that order, a total of 140.6miles. It is widely considered one of the most difficult one-day sporting events in the world.[1] [2] [3]

Most Ironman events have a time limit of 16 or 17 hours to complete the race, course dependent, with the race typically starting at 7:00 am. The mandatory cutoff time to complete the 2.42NaN2 swim is 2 hours 20 minutes. The mandatory bike cut off time for when an athlete must have completed their swim, transition and bike varies generally between 10 hours and 10 hours 30 minutes from when an athlete began their swim. The mandatory run cutoff varies between 16 and 17 hours from when athlete began their swim. Many races will also have intermediate bike, run, and transition cut off times specific to each race venue. Any participant who completes the triathlon within these time constraints is designated an Ironman.

The name "Ironman Triathlon" is also associated with the original Ironman triathlon that is now the Ironman World Championship. Held in Kailua-Kona, the world championship has been held annually in Hawaii since 1978 (with an additional race in 1982). Originally taking place in Oahu, the race moved to Kailua-Kona in 1981 and it continues today. The Ironman World Championship has become known for its grueling length, harsh race conditions, and television coverage.[4] [5]

There are other races that are the same distance as an Ironman triathlon but are not produced, owned, or licensed by the WTC. They include The Challenge Family series' Challenge Roth[6] and the Norseman Triathlon.

The event series is owned by The Ironman Group, which is owned by Advance Publications, following the acquisition from the Wanda Sports Group in August 2020.[7]

History

The idea for the original Ironman Triathlon arose during the awards ceremony for the 1977 Oʻahu Perimeter Relay.[8] Among the participants were representatives of both the Mid-Pacific Road Runners and the Waikiki Swim Club, whose members had long been debating which athletes were more fit, runners or swimmers. On this occasion, U.S. Navy Commander John Collins pointed out that a recent article in Sports Illustrated magazine had declared that Belgian cyclist Eddy Merckx had the highest recorded "oxygen uptake" of any athlete ever measured, so perhaps cyclists were more fit than anyone. Collins and his wife Judy Collins had taken part in the triathlons staged in 1974 and 1975 by the San Diego Track Club in and around Mission Bay, California, as well as the 1975 Optimist Sports Fiesta Triathlon in Coronado, California. A number of the other military athletes in attendance were also familiar with the San Diego races, so they understood the concept when Collins suggested that the debate should be settled through a race combining the three existing long-distance competitions already on the island: the Waikiki Roughwater Swim, the Around-Oahu Bike Race (; originally a two-day event) and the Honolulu Marathon .[9]

Until that time, no one present had ever done the bike race. Collins figured by shaving 3miles off the course and riding counter-clockwise around the island, the bike leg could start at the finish of the Waikiki Rough Water and end at the Aloha Tower, the traditional start of the Honolulu Marathon. Prior to racing, each athlete received three sheets of paper listing a few rules and a course description. Handwritten on the last page was this exhortation: "Swim 2.4 miles! Bike 112 miles! Run 26.2 miles! Brag for the rest of your life", now a registered trademark.

With a nod to a local runner who was notorious for his demanding workouts, Collins said, "Whoever finishes first, we'll call him the Iron Man." Each of the racers had their own support crew to supply water, food and encouragement during the event.[10] Of the fifteen men to start off in the early morning on February 18, 1978, twelve completed the race. Gordon Haller, a U.S. Navy Communications Specialist, was the first to earn the title Ironman by completing the course with a time of 11 hours, 46 minutes, 58 seconds. The runner-up John Dunbar, a U.S. Navy SEAL, led after the second transition and had a chance to win but ran out of water on the marathon course; his support crew resorted to giving him beer instead.[11] [12] [13]

With no further marketing efforts, the race gathered as many as 50 athletes in 1979. The race, however, was postponed a day because of bad weather conditions. Only fifteen competitors started off the race Sunday morning. San Diego's Tom Warren won in 11 hours, 15 minutes, 56 seconds.[9] Lyn Lemaire, a championship cyclist from Boston, placed sixth overall and became the first "Ironwoman". Lemaire[14] finished her race in 12 hours 55 minutes and 38 seconds, only 1 hour 39 minutes and 42 seconds slower than the winning time for the men's race. Collins planned on changing the race into a relay event to draw more participants, but Sports Illustrated's journalist Barry McDermott, in the area to cover a golf tournament, discovered the race and wrote a ten-page account of it.[9] [12] During the following year, hundreds of curious participants contacted Collins. In 1980 27-year old Dave Scott took the event by storm when he shattered the current record by close to 2 hours, completing the race in 9 hours and 24 minutes. For the 1981 event there were more than triple the entries, at 326.[15]

There have been 19 different ways to qualify for the Ironman. Some of the ways include being a Hawaii Resident who won an event drawing, attaining a win in your age group at a previous Ironman, or even having a "Human Interest Story." Such human interest stories include participants who are cancer survivors and war heroes injured in battle. [16]

Valerie Silk and WTC

Around 1979 Collins no longer wanted to direct the Ironman race and approached Nautilus Fitness Center owners Hank Grundman and Valerie Silk about taking over control of the race. Grundman previously had extended his club's facilities to many of the Ironman competitors. Following the couple's divorce in 1981 Silk received ownership of Ironman.[17] [18] That year she moved the competition to the less urbanized Hawaiʻi Island[9] (called the Big Island) and in 1982 moved the race date from February to October; as a result of this change there were two Ironman Triathlon events in 1982.

A milestone in the marketing of the legend and history of the race happened in February 1982. Julie Moss, a college student competing to gather research for her exercise physiology thesis, moved toward the finish line in first place. As she neared the finish, severe fatigue and dehydration set in and she fell, just yards away from the finish line. Although Kathleen McCartney passed her for the women's title, Moss nevertheless crawled to the finish line. Her performance was broadcast worldwide and created the Ironman mantra that just finishing is a victory. By the end of that year the race had maxed out at 1,000 participants, with a lottery used to fill the field while turning away another 1,000 interested participants.[18]

In 1990, with the help of Lew Friedland, Dr. James P. Gills acquired and purchased the Hawaii Triathlon Corporation, owner of the Ironman brand for $3 million from Silk. With the Ironman brand, Gills established the World Triathlon Corporation with the intention of furthering the sport of triathlon and increasing prize money for triathletes.[19] [20] [21]

A number of non-WTC full distance triathlons have been held since the mid-1990s. The limited number of WTC-sanctioned events, and the limited number of entries available per race, have combined with a growth in the sport that has created demand for these non-trademarked events. Many of them share the 2.4miles, 112miles, 26.2miles format with the Ironman triathlon. Originally, many used the Ironman name. Due to aggressive trademark protection, most of these races no longer use the word "Ironman".

Today

The Ironman format remains unchanged, and the Hawaiian Ironman is still regarded as an honored and prestigious triathlon event to win worldwide.[22] [23] For the 2024 Ironman Triathlon, the men's race will be held in Kona, Hawaii in October and the women's race will be held in Nice, France in September.[24]

People completing such an event within the strict event time cutoffs are agreed to be recognized as "Ironmen"; the plural "Ironmans" refers to multiples of "Ironman" as a short form of "Ironman Triathlon." In the triathlon community an Ironman is someone who has completed a race of the appropriate distance, whether or not it falls under the aegis of WTC.

Swim Smart Initiative

In 2013, Ironman piloted the "Swim Smart Initiative" in North America and brought with it some notable safety related changes to the Ironman format. These changes included new rules regarding swim course formats, water temperature regulations, pre-swim warm ups, wave starts, and additional rescue boats/watercraft (paddle-boards, kayaks, etc.). The Swim Smart Initiative also introduced "resting rafts" so that athletes may leave the water to rest without being disqualified.[25] Andrew Messick, CEO of the World Triathlon Corporation, wanted the Swim Smart Initiative to ease the stress of the open swim and allowing athletes to be confident in the swim. Removing the "mass start" and conducting a "roll start" has been one the a major changes the organization has made.[26]

Ironman World Championship

See main article: Ironman World Championship.

Over time the popularity of the sport of triathlon grew, and the annual race on the Big Island became The Ironman World Championship. In 1983, admission to the race began following a qualification based system, whereby athletes had to obtain entry to the race by competing in another Ironman race and gaining a slot, allocated on a proportional basis. The Hawaii race consists of a swim in the bay of Kailua-Kona, a bike ride across the Hawaiian lava desert to Hāwī and back, and a marathon run along the coast (from Keauhou to Keahole Point and back to Kailua-Kona); finishing on Aliʻi Drive. The most recent Ironman World Championship took place on October 6, 2022, and was won by Gustav Iden of Norway in 7:40:24 and Chelsea Sodaro of the United States in 8:33:46.[27] [28]

The current Ironman Hawaii course record was set in 2022 by Gustav Iden (Norway), whose winning time was 7 hours 40 minutes 24 seconds. Daniela Ryf (Switzerland) set the women's course record in 2018 with a winning time of 8 hours 26 minutes 18 seconds.[27] [28]

Amateur triathletes can qualify for the World Championship through placement in one of the other Ironman series of races. Entry into the race can also be obtained through various contests and promotions, or through the Ironman Foundation's charitable eBay auction.

Training studies

Many studies have been conducted to enhance the performance of the athletes who are training for the Ironman Triathlons while others studied the effects training has on the body and mind. In one study done by Clifford B. Sowell and WM. Stewart Mounts, Jr, "men who are 65 years old are 44% slower than one who is 35...and women is 48%"[29]

Athlete injuries

Triathletes train year round, and no matter how cautious, injuries are always possible. Many factors can be accounted for injuries happening, intrinsic factors are based on the individual and extrinsic factors are environmentally influenced.[30] The most common injuries in the running event, are to the ankle and foot which result in a sprain, fracture, and muscle strain. Knee injuries like patella tendinopathy. Lower back injuries such as intervertebral disc injury and myofascial pain. Cycling injuries are common in the knees, lower back, neck and shoulder. Swimming injuries happen most in the shoulders from the continuous rotations. This could happen when there is no form or control in swimming. The neck will see some minor injury when you are only breathing from one side. Thermal injuries will occur when the athlete is dehydrated, hypathermic, and hypothermic. It is important to stay alert and listen to your body when there is unfamiliar pain or fatigue.

Ironman series

There are over three dozen Ironman Triathlon races throughout the world that enable qualification for the Ironman World Championships. Professional athletes qualify for the championship through a point ranking system, where points are earned based on their final placement in Ironman and Ironman 70.3 events. The top 50 male and top 35 female professionals in points qualify for the championship. Amateur athletes qualify for the championship by receiving slots allocated to each age group's top finishers in a qualifying event. The Ironman qualifying events include:[31]

Europe

North America

South America

Africa

Asia

Oceania

Specifications of the Ironman races

Town/City Country Region water type wetsuit rule
  1. swimming loops
Australian exit
  1. biking loops
  1. running loops
Penticton Canada (BC) North America fresh - 1no 12
Klagenfurt Austria Europe fresh - 1no 22
Copenhagen Denmark Europe salt mandatory 1no 24
Bolton England Europe fresh- 2yes 34
Tallinn Estonia Europe fresh - 2yes 24
Nice France Europe salt - 2no 14
Vichy France Europe fresh generally forbidden 1yes 24
Hamburg Germany Europe fresh - 1no 24
Frankfurt Germany Europe fresh - 1yes 24
Emilia Romagna Italy Europe salt - 1no 24
Maastricht Netherlands Europe fresh - 1yes 24
Haugesund Norway Europe fresh - 1yes 14
GdyniaPolandEuropesaltoptional1yes24
Barcelona Spain Europe salt - 1no 23
Puerto del CarmenSpain (Canaries) Europe salt mandatory 2yes 13
Kalmar Sweden Europe brackish - 1no 23
Zurich Switzerland Europe fresh - 1no 14
TenbyWales Europe salt- 2yes 24
CorkIrelandEuropesaltmandatory2yes24
Mont-Tremblant Canada (Quebec) North America fresh optional1no 22
Cozumel Mexico North America salt1no33
Tempe USA (Arizona) North America fresh 1no32
Santa Rosa USA (California) North America 2no 23
Panama City Beach USA (Florida) North America 2yes12
Kailua-Kona USA (Hawaii) North America salt no 1no 11
Louisville USA (Kentucky) North America 1no22
Cambridge USA (Maryland) North America brackish 2no 22.5
Lake Placid USA (New York) North America fresh 2yes22
Chattanooga USA (Tennessee) North America fresh 1no22.25
The Woodlands USA (Texas) North America fresh 1no 23
Madison USA (Wisconsin) North America fresh 2no 22
Florianópolis Brazil South America salt2yes24
Mar del Plata Argentina South America salt- 233
Nelson Mandela Bay South Africa Africa salt - 1no 24
Subic Bay Philippines Asia
Gurye Korea Asia
Penghu Taiwan Asia
Langkawi Malaysia Asia salt
Port Macquarie Australia Oceania salt optional 1no 24
Cairns Australia Oceania salt optional 2no 24
Busselton Australia Oceania salt optional 2yes 24
Taupo New Zealand Oceania fresh optional 1no 23
Source: [36]

Notable Ironman triathletes

Men

Women

Ironman world records

The designation of "world record" is unofficial due to lack of course certification as well as World Triathlon Corporation not maintaining official world record status.[42]

Ironman men's world records
EventRecordAthleteNationalityCompetitionPlace
Full Ironman[43] 7:21:12
(39:41-1:52-4:02:40-1:37-2:35:24)*
Kristian BlummenfeltIronman Cozumel 2021Cozumel, Mexico
Swim (3.9 km)[44] 41:26Christof WandratschIronman Austria 2006Klagenfurt, Austria
Swim (3.9 km; current-aided)[45] 39:08Luke BellIronman New York 2012New York, United States
Bike (180.2 km)[46] 3:55:22Jan FrodenoTri Battle Royale 2021Allgäu, Germany
Run (42.2 km)[47] 2:30:27Patrick LangeChallenge Roth 2023Roth, Germany
  • Current aided, short swim course[48] [49]
Ironman women's records
EventRecordAthleteNationalityCompetitionPlace
Full Ironman[50] 8:02:38Anne HaugChallenge Roth 2024Roth, Germany
Swim (3.862 km)[51] 45:04Amanda StevensIronman Germany 2012Frankfurt, Germany
Swim (3.862 km; current-aided)40:29Dede GriesbauerIronman New York 2012New York, United States
Bike (180.246 km)[52] 4:22:56Daniela RyfChallenge Roth 2023Roth, Germany
Run (42.195 km)2:38:52Anne HaugChallenge Roth 2024Roth, Germany

Ironman 70.3

See main article: Ironman 70.3. In 2005, WTC instituted the Ironman 70.3 race series. This shorter course, also known as a Half Ironman, consists of a 1.2miles swim, 56miles bike ride, and 13.1miles run. As with the Ironman series, it consists of a number of qualifying races at various locations worldwide ending in a world championship race with athletes drawn largely from top finishers in the qualifying events.

For amateur athletes, some 70.3 events acted as qualifiers for the full Ironman World Championships in Hawaii.[53] However, the 2015 qualifying year marked a large de-emphasis on using certain Ironman 70.3 series races as a path for amateur athletes to qualify for the Ironman World Championships. The change was made to accommodate for the increased number of qualifying slots created from the full Ironman events which had been recently added.[54]

For professional triathletes, up to three 70.3 events can be used to accumulate points to be put towards their championship qualifying point rankings.

Ownership and trademark

Advance Publications, the parent company that owns WTC and subsequently the Ironman brand, pays royalties to Marvel Entertainment for use of the Ironman brand.[55] As part of the licensing agreement both Marvel and the former owner Wanda agreed to not use the "Iron Man" and "Ironman" trademarks in ways that would suggest an association with the other or cause brand confusion. World Triathlon Corporation CEO Andrew Messick has stated that the agreement has been in place for decades and the royalties paid are "not material to the business."[55] Iron Man first appeared in 1963, whereas the first Ironman triathlon was raced in 1978.

The Ironman Triathlon logo is a trademark of the World Triathlon Corporation.[56] The WTC has also registered the trademarks for "Ironman," "Ironman Triathlon," "M-Dot," and "70.3."[57] WTC has licensed the Ironman name for use, such as in the line of Timex Ironman wristwatches.

See also

Further reading

External links

Notes and References

  1. Web site: 2012 Ironman World Championship: The hardest day in sports. Hudson. Ryan. October 19, 2012 . SB Nation. July 23, 2013.
  2. Web site: FAQ:How do I know if I have the right stuff to do an IRONMAN?. Ironman. July 23, 2013. https://web.archive.org/web/20130821035515/http://www.ironman.com/ironman-faq.aspx#faq1. August 21, 2013. dead.
  3. Web site: The making of an Ironman. Walpole. Brian. Performance Sports and Fitness. July 23, 2013. October 7, 2017. https://web.archive.org/web/20171007104631/http://www.performancesportandfitness.co.uk/articles/how-do-they-do-that/the-making-of-an-ironman.html. dead.
  4. Web site: Not Your Everyday Athlete . Collings . Jennifer . NASA.gov . December 3, 2013 . March 5, 2016 . https://web.archive.org/web/20160305002902/http://www.nasa.gov/centers/langley/news/researchernews/rn_ironman.html . dead .
  5. Web site: Ironman wins 16th Emmy Award . May 4, 2012 . December 3, 2013 . Hawaii 24/7 . https://web.archive.org/web/20150924025245/http://www.hawaii247.com/2012/05/04/ironman-wins-16th-emmy-award/ . September 24, 2015 . dead .
  6. Web site: 2012 last year for Penticton Ironman triathlon . August 24, 2012 . July 2, 2013 . CBC.
  7. Web site: Advance completes acquisition of The IRONMAN Group. August 18, 2021. Advance. July 20, 2020.
  8. Web site: Triathlon Timeline - USA Triathlon. USA Triathlon. October 22, 2013. https://web.archive.org/web/20131123030420/http://www.usatriathlon.org/~/media/3022ca3e385a44d4960d8d969ddd9d7e.ashx. November 23, 2013. dead.
  9. Web site: Coronado Residents John And Joan Collins Honored As Ironman Founders. November 27, 2014. December 1, 2014. Axelson. David. Coronado Eagle and Journal.
  10. Web site: Sanction permit, entry form and athlete guide first annual Hawaiian Iron Man Triathlon 1978 . https://web.archive.org/web/20140619203239/http://trihistory.com/sites/default/files/original_im_sanction_packet.pdf . June 19, 2014.
  11. Web site: A Look Back at a Look Back: Ironman's First 10 years. January 23, 2003. September 7, 2011. World Triathlon Corporation. ironman.com. https://web.archive.org/web/20110914085514/http://ironman.com/holdingcell/2003/january-2003/a-look-back-at-a-look-back-ironmans-first-10-years#ixzz1XGburp4M. September 14, 2011. dead.
  12. Ironman. May 14, 1979. September 7, 2011. Sports Illustrated. McDermott. Barry. April 20, 2023. https://web.archive.org/web/20230420203942/https://vault.si.com/vault/1979/05/14/ironman-to-earn-that-title-tom-warren-victoriously-swam-24-miles-through-rough-seas-bicycled-112-miles-and-ran-a-marathon-all-in-a-single-day-of-agonyIRONMAN. dead.
  13. Web site: Ironman competition co-founded by Navy officer in 1979. October 10, 2008. September 7, 2011. NavySeals.com. Newell. Paul. https://web.archive.org/web/20120320071839/http://www.navyseals.com/ironman-competition-co-founded-navy-officer-1978. March 20, 2012. dead.
  14. Web site: Ling . Micah . A Brief History of the Women's Ironman World Championship . STRAVA Stories.
  15. Web site: IRONMAN Timeline: The first Decade (1978- 1987) . Ironman.
  16. Web site: Garthe . David . 19 Ways to Qualify for the Kona Ironman World Championships (2024) .
  17. Web site: A Straight 40 To Go. Tinley. Scott. August 10, 2014. March 4, 2015. trihidtory.com. February 15, 2015. https://web.archive.org/web/20150215080117/http://www.trihistory.com/features/straight-40-go. dead.
  18. News: Ironwoman. Chick. Bob. October 22, 1983. March 4, 2015. The Evening Independent. 1–C.
  19. Web site: Equity firm buys Ironman parent. Williams. Pete. September 15, 2008. Street & Smith's Sports Group. June 24, 2010. https://web.archive.org/web/20120919232504/http://www.sportsbusinessdaily.com/Journal/Issues/2008/09/20080915/This-Weeks-News/Equity-Firm-Buys-Ironman-Parent.aspx. September 19, 2012.
  20. Web site: End of year news roundup. Carlson. Timothy. December 20, 2009. Slowtwitch.com. June 24, 2010.
  21. Book: Scheppler, Bill. The Ironman Triathlon. 2002. The Rosen Publishing Group. 978-0-8239-3556-7. 15.
  22. Web site: Ironman World Championship, Kailua-Kona, Hawaii Triathlete's Guide. September 29, 2011. November 22, 2011. BeyondTransition.
  23. Book: McCormack, Chris. I'm Here To Win. Tim Vandehey. 978-1-4555-0267-7. 2011. Center Street.
  24. Web site: Garthe . David . 10 Ways to Qualify for the Kona Ironman World Championships (2024) .
  25. Web site: IRONMAN Introduces SwimSmart Initiative in North America. IRONMAN.com. June 24, 2016. https://web.archive.org/web/20190520083749/http://www.ironman.com/triathlon-news/articles/2013/05/swimsmart-initiative.aspx#axzz3r8HrdLTv. May 20, 2019. dead.
  26. Web site: WTC CEO Andrew Messick on Ironman Swim Changes . Triathlete.
  27. Web site: 2022 Ironman World Championship Overall Results - Day 2 . July 29, 2019 . SportStats.
  28. Web site: 2022 Ironman World Championship Overall Results - Day 1 . July 29, 2019 . SportStats.
  29. Sowell . Clifford . Mounts, Jr . Wm. Stewart . Ability, Age, and Performance: Conclusions from the Ironman Triathlon World Championship . Journal of Sports Economics . Feb 2005 . 6 . 1 . 78–97 . 10.1177/1527002503260801 .
  30. Web site: Graham . Darby . Common Triathlon Injuries . The Injury Clinic.
  31. Web site: Slot Allocation. World Triathlon Corporation. July 18, 2022.
  32. Web site: Larson . Clarise . January 5, 2023 . Ironman Alaska aftermath: Looking back at the impact of the first and — for now — last Ironman race in Alaska . October 27, 2023 . Juneau Empire . en-US.
  33. Web site: IRONMAN Coeur d'Alene Anything Is Possible . June 25, 2023 . Ironman . en.
  34. Web site: IRONMAN 70.3 Louisville Anything Is Possible . 2024-08-18 . Ironman . en.
  35. News: Ayer . Justin . May 21, 2023 . Final Ironman In Tulsa wraps up . KJRH 2 News Oklahoma .
  36. Web site: Course Descriptions . September 29, 2020. World Triathlon Corporation.
  37. News: The Monday Round-Up: IRONMAN Record Falls in Brazil. IRONMAN.com. July 25, 2017. en-US. https://web.archive.org/web/20180622192926/http://ap.ironman.com/triathlon/news/articles/2017/05/the-monday-round-up-5.29.aspx. June 22, 2018. dead.
  38. Web site: The beginning of the Hoyt Family . The Hoyt Foundation.
  39. Web site: The first person in history with Down Syndrome to complete an Ironman Triathlon . Khaama Press.
  40. Web site: Mirinda Carfrae Seizes Her Second World Championship . Ward Barber . Jennifer . ironman.com . October 12, 2011. October 15, 2013. https://web.archive.org/web/20190402072948/http://www.ironman.com/triathlon/news/articles/2013/10/kona-womens-race.aspx#axzz2hnTFkgxL . April 2, 2019. dead .
  41. record over all WTC Ironman-branded ("M-dot") races only
  42. Web site: What is the Ironman World Record? It's Complicated. O'Mara. Kelly. November 21, 2021. November 22, 2021.
  43. Web site: Ironman Cozumel. November 21, 2021. November 21, 2021. Ironman.com.
  44. Web site: Ironman Hawaii Wackelt Der 20 Jahre Alte Schwimmrekord?. https://web.archive.org/web/20160323010448/https://swim.de/magazin/open-water/wackelt-der-20-jahre-alte-schwimmrekord-59499. March 23, 2016. October 9, 2015. swim.de.
  45. Web site: Ironman New York City's Record-Breaking Swim Times. triathlete.com. October 31, 2014.
  46. Web site: Tri Battle Royale. Tri-battle.com. July 18, 2020. July 19, 2021. December 2, 2021. https://web.archive.org/web/20211202032838/https://tri-battle.com/. dead.
  47. Web site: DATEV Challenge Roth powered by hep 2023. June 25, 2023. Challenge Roth Official Site. October 18, 2023. challenge-roth.com.
  48. Web site: Last Weekend Now: Blummenfelt's Sizzling Ironman Debut, Rough Water in South Africa. Culp. Brad. November 22, 2021. November 22, 2021. Triathlete.
  49. Web site: Olympic Champ Blummenfelt, Sara Svensk Win IM Cozumel. Carlson. Timothy. Slowtwitch.com. November 21, 2021. November 22, 2021.
  50. Web site: Challenge Roth 2024 results: Anne Haug sets FASTEST EVER time for full triathlon distance. tri247.com. July 8, 2011.
  51. Web site: Vanhoenacker and Steffen Dominate Frankfurt. Ironman. July 8, 2012. October 14, 2017. https://web.archive.org/web/20180722155636/http://www.ironman.com/es-es/triathlon-news/articles/2012/07/vanhoenacker-and-steffen-dominate-frankfurt.aspx#axzz4vUveAH2i. July 22, 2018. dead.
  52. Web site: Frodeno Sets World Record At Challenge Roth. triathlete.com. July 19, 2016.
  53. Web site: Ironman World Championship Qualification. November 22, 2011. World Triathlon Corporation. dead. https://web.archive.org/web/20110713060727/http://ironmanworldchampionship.com/qualification/. July 13, 2011.
  54. Web site: How Losing Kona Slots Will Affect 70.3 Races. Mavis. Bethany. July 22, 2014. March 24, 2015. Competitor Group, Inc.. https://web.archive.org/web/20150922200823/http://triathlon.competitor.com/2014/07/news/losing-kona-slots-will-affect-70-3-races_102757. September 22, 2015. dead.
  55. Web site: Iron Man to Ironman: Pay Up. Bachman. Rachel. July 26, 2019. July 29, 2019. Wall Street Journal.
  56. Web site: IRONMAN - Trademark Details. July 29, 2019. Justia.
  57. Web site: Intellectual Property Usage. July 29, 2019. World Triathlon Corporation. https://web.archive.org/web/20190729152745/https://www.ironman.com/triathlon/legal-faq. July 29, 2019. dead.