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.
Katherine Jessie Jean "Kate" Allen is an Australian-Austrian triathlete. She won the gold medal in the women's triathlon at the 2004 Summer Olympics in Athens.
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.
Stephan Vuckovic is an athlete from Germany, who competes in triathlon.
Simon Christopher Lessing, MBE, is a British triathlete who won five International Triathlon Union (ITU) world titles. He also won races at 70.3, ITU long distance and Ironman-distance events. He set an Olympic-distance world record in 1996, and is noted for his 2004 Ironman Lake Placid win, where he set a course record of 8:23:12. In 2008 he retired from professional racing. Simon resides in Boulder, Colorado, United States, where he operates Boulder Coaching with Darren de Reuck.
Andreas Raelert is a German triathlete. His younger brother, Michael Raelert, is also a triathlete.
Conrad Willem Stoltz is a triathlete from South Africa. He is a four time XTERRA Triathlon World Champion and a three time ITU Cross Triathlon World Champion.
Vassilis Krommidas is a triathlete and coach from Greece best known for competing at the 2000 and 2004 Olympic Games.
Timothy Philip Don is a triathlete from the United Kingdom.
Andrew Robert Potts is a triathlete from the United States. He competed in triathlon at the 2004 Summer Olympics and is the 2007 Ironman 70.3 World Champion. Prior to triathlon, Potts was a swimmer where he won the bronze medal in the men's 400m individual medley at the 1995 Summer Universiade and earned a spot on the USA Swimming national team where he would place fourth at the 1996 Olympic Trials in the 400 IM.
Tyler Barbour Butterfield is an athlete from Bermuda. He competes in road bicycle racing and triathlon events. He became Bermuda's first ever professional triathlete in 2002. He was voted Bermuda's male athlete of the year in 2006 and 2013. Butterfield was the youngest male competitor at the second Olympic triathlon at the 2004 Summer Olympics. He placed thirty-fifth with a total time of 1:58:26.99.
Luc Van Lierde is a former athlete from Belgium, who has been competing in triathlon since 1990 and who has been a professional triathlon coach since 2009.
Madonna Buder,, also known as the Iron Nun, is an American Senior Olympian triathlete and former religious sister. Buder has the current world record for the oldest woman to ever finish an Ironman Triathlon, which she obtained at age 82 by finishing the Subaru Ironman Canada on August 26, 2012.
Francisco Javier Gómez Noya is a Spanish triathlete. He is the winner of five ITU Triathlon World Championships, he holds three ITU Triathlon World Cup titles, and won the Silver medal for Spain at the 2012 Summer Olympics in men's triathlon. He has also won world titles for Ironman 70.3 and XTERRA Triathlon.
Jan Frodeno is a German triathlete who is the gold medal winner in men's triathlon at the 2008 Summer Olympics in Beijing, 3-time winner of the Ironman World Championship in 2015, 2016, and 2019, and 2-time winner of the Ironman 70.3 World Championship in 2015 and 2018. He had set the world record for the long distance in Roth, Germany in 2016 with 7:35:39 hours. In 2021, he broke his own world record during the Tributtle in Allgäu, Germany against Lionel Sanders, with a time of 07:27:53, setting a new world best for the long-distance triathlon.
Heather Fell is a former British modern pentathlete turned triathlete. She competed at the 2008 Summer Olympics, winning the silver medal in the women's modern pentathlon event.
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.
Marino Vanhoenacker is a Belgian triathlete. On 3 July 2011, he set a world best time for Ironman full distance triathlon at the Ironman Triathlon at Klagenfurt in Austria, finishing after 7 hours, 45 minutes and 58 seconds, beating Luc Van Lierde's 1997 time of 7h50m27s. His time was subsequently beaten by Lionel Sanders at Ironman Arizona in 2016; the current world best time is held by Tim Don in a time of 7 hours, 40 minutes and 23 seconds at Ironman Brazil in May 2017.
Kristian Blummenfelt is a Norwegian triathlete and Olympic and World Champion Gold medalist, competing at short course, 70.3 (half-Ironman) and 140.6 (Ironman) distances. He won the gold medal in the men's triathlon at the 2020 Summer Olympics held in Tokyo, Japan. He is the 2021 Ironman World Champion at the first World Championship held at Saint George, Utah on May 7, 2022. On 5 June 2022, Blummenfelt became the first person to complete an Ironman-distance triathlon in under seven hours during the Pho3nix Sub-7 Sub-8 event at the Lausitzring race track in Germany. Blummenfelt set a new unofficial world record for the Ironman-distance triathlon, in a time of 6:44:25.
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