A triathlon is an endurance multisport race consisting of swimming, cycling, and running over various distances. Triathletes compete for fastest overall completion time, racing each segment sequentially with the time transitioning between the disciplines included. The word is of Greek origin, from τρεῖς or treis (three) and ἆθλος or athlos (competition).
An Ironman Triathlon is one of a series of long-distance triathlon races organized by the World Triathlon Corporation (WTC), consisting of a 2.4-mile (3.9 km) swim, a 112-mile (180.2 km) bicycle ride and a marathon 26.22-mile (42.2 km) run completed in that order, a total of 140.6 miles (226.3 km). It is widely considered one of the most difficult one-day sporting events in the world.
Mark Allen is an American triathlete and six-time Ironman Triathlon World Champion.
Christopher John McCormack, also known as Macca, is an Australian triathlete. McCormack is a two-time winner of the Ironman World Championship, winning the titles in 2007 and 2010. He is also the winner of the 1997 International Triathlon Union (ITU) World Cup Series, the 1997 Triathlon World Championships, and the 2012 Long Distance World Championships.
Michellie Yvonne Jones is an Australian triathlete. She has won two ITU Triathlon World Championships, an Olympic silver medal, and the 2006 Ironman World Championship. She won a gold medal at the 2016 Summer Paralympics as a guide for Katie Kelly, when paratriathlon made its debut at the Paralympics.
Joanna Sue Zeiger is an American triathlete who is the 2008 Ironman 70.3 world champion. Zeiger represented the United States at the 2000 Summer Olympics in triathlon. She's the author of The Champions Mindset - An Athlete's Guide to Mental Toughness.
Sarah Reinertsen is an American Paralympic triathlete and former track athlete. She was born with proximal femoral focal deficiency, a bone-growth disorder; her affected leg was amputated above the knee at age seven.
Jon Blais, also known as Blazeman, was an American triathlete noted for his fight against amyotrophic lateral sclerosis (ALS) and is the namesake of the Blazeman Foundation.
An Ironman 70.3, also known as a Half Ironman, is one of a series of long-distance triathlon races organized by the World Triathlon Corporation (WTC). The "70.3" refers to the total distance in miles (113.0 km) covered in the race, consisting of a 1.2-mile (1.9 km) swim, a 56-mile (90 km) bike ride, and a 13.1-mile (21.1 km) run. Each distance of the swim, bike, and run segments is half the distance of that segment in an Ironman Triathlon. The Ironman 70.3 series culminates each year with a World Championship competition, for which competitors qualify during the 70.3 series in the 12 months prior to the championship race. In addition to the World Championship race, Ironman 70.3 championship competitions are also held for the European, Asia-Pacific, and Latin America regions.
Tim DeBoom, is a retired professional triathlete from Boulder, Colorado from 1995 to 2012. During that tenure, DeBoom participated in hundreds of triathlons around the world, winning both short course and long course triathlons. After a 10th place finish in the Hawaii Ironman in 1995, DeBoom focused on long distance racing, eventually winning the Ironman Triathlon World Championship in Hawaii twice.
Chris Lieto is a professional triathlete and the winner of the 2006 Ironman Japan, 2005 Ironman Canada, and 2002 Ironman Wisconsin triathlons.
Kathleen McCartney Hearst is an American former triathlete who won the Ironman World Championship in February 1982. She passed Julie Moss, who collapsed less than 10 yards from the finish line, and won the race. The New York Times credited the race with "raising the levels of enthusiasm and participation for the sport".
Julie Leach is an American Olympic Kayak athlete who competed in the 1976 Montreal Olympics, then switched to triathlon. After winning numerous races she won the Oct '82 Hawaiian Ironman World Championship. Julie has two children with Bill Leach: Shane (3-23-88) and Hayden (7-1-93). She taught Earth science at Arnold O. Beckman High School in Irvine, California until 2012.
The Ironman World Championship is an ultra-triathlon held annually in Hawaii, United States since 1978, with an additional race in 1982. It is owned and organized by the World Triathlon Corporation. It is the annual culmination of a series of Ironman triathlon qualification races held throughout the world.
Dirk Bockel is a professional triathlete originally from Schwaikheim, Germany. He holds Luxembourgish nationality and raced for Luxembourg in the 2008 Olympic Games in Beijing.
Dave Scott is a U.S. triathlete and the first six-time Ironman Triathlon Hawaii Champion. A progenitor of the sport, in 1993, Scott was the first person ever inducted in the Ironman Hall of Fame. He is known by the nickname "The Man" for his intense training regimens and his unrelenting race performances that created a record number of wins.
Conrad Will was one of the early pioneers in the sport of Triathlon. A member of the famed “San Diego Track Club” and “Horny Toads” running group in San Diego, California, he competed in some of the earliest triathlons in the late 1970s. In 1981 he participated in the Ironman Triathlon in its first year on the Big Island of Hawaii. He competed in Ironman Hawaii 6 times in his 40s and 50s. In 1984 he set a world record in the 40-49 age group at the Ultra Distance triathlon in Massachusetts. A few days later, he won the over 40 national title in the Long Course Triathlon in Colorado.
John Dunbar is a retired U.S. Navy SEAL and Ironman triathlete.
Tom "Tug" Warren is an American triathlete, an Ironman champion, an inductee of both the Ironman Hall of Fame and the USA Triathlon Hall of Fame, and a former sports bar owner from San Diego, California.
Chris Nikic is an American amateur triathlete. In 2020, at age 21, he became the first person with Down syndrome to finish an Ironman triathlon. For this accomplishment, Nikic was awarded the Jimmy V Award for Perseverance as part of the 2021 ESPY Awards. Additionally, he won the ESPY for Best Athlete with a Disability in Men's Sports.
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