Bryan Ezra Tsumoru Clay is an American decathlete who was the 2008 Summer Olympic champion for the decathlon and was also World champion in 2005.
Andrei Sergeyevich Krauchanka is a Belarusian decathlete. He was the silver medallist at the 2008 Beijing Olympics. His personal best score of 8617 points is the Belarusian record for the event. He also holds the national indoor record in the heptathlon with 6282 points.
Leonel Suárez Fajardo is a decathlete from Cuba. He was bronze medalist in the event at the 2012 Summer Olympics, 2008 Summer Olympics and silver medalist at the 2009 World Championships. He won a third consecutive global medal at the 2011 World Championships in Athletics, taking bronze.
Brittney Davon Reese is a retired American long jumper, Olympic gold medalist, and a seven-time world champion. Reese is the indoor American record holder in the long jump with a distance of 7.23 meters.
Curtis Beach is an American decathlete who competed for Duke University. He formerly held high school records in the decathlon using three different implement standards: high school, international junior and international senior. His performances in the high jump, 400 meters, and 1,500 meters were superior to those of U.S. Olympic gold medalist Bryan Clay in the 2008 Olympic Games. At the 2011 NCAA Men's Outdoor Track and Field Championship, as a freshman, Beach finished second overall in the decathlon. His 3:59.13 finish in the 1500 meter shattered the previous collegiate record and is the second-fastest 1500 meter in world history for a decathlon, just missing Robert Baker's mark from 1980.
Ashton James Eaton is a retired American decathlete and two-time Olympic champion, who holds the world record in the indoor heptathlon event. Eaton was the second decathlete to break the 9,000-point barrier in the decathlon, with 9,039 points, a score he bettered on August 29, 2015, when he beat his own world record with a score of 9,045 points, and remains the only person to exceed 9000 points twice. His world record was broken by Frenchman Kevin Mayer on September 16, 2018, with a total of 9,126 points, who became the third man to pass the 9,000-point barrier.
Robert Jacob "Jake" Arnold is a decathlete from the United States. He represented the United States in the decathlon at the 2007 and 2009 World Championships ranking 13th and 24th respectively. He became the first athlete to win back-to-back NCAA decathlon titles in over twenty years after winning the event in both 2006 and 2007.
Brianne Theisen-Eaton is a retired Canadian track and field athlete who competed in the heptathlon and women's pentathlon. She won the bronze medal at the 2016 Summer Olympics. Theisen-Eaton holds the Canadian record for the heptathlon with 6,808 points, as well as the indoor pentathlon with a score of 4768 points. Theisen-Eaton is a heptathlon silver medallist from the 2013 World Championships and 2015 World Championships, as well as a pentathlon silver medalist from the 2014 World Indoor Championships. She is the first and only Canadian woman to podium in the multi-events at the World Championships. Theisen-Eaton won Commonwealth Games gold in the heptathlon at Glasgow 2014 and was the 2016 World Indoor Champion in the pentathlon. She also won a bronze medal as part of the women's 4 x 400 m relay at the 2015 Pan American Games in Toronto.
Sharon Day-Monroe is an American heptathlete, pentathlete and high jumper. She is the 2011, 2013, and 2014 national heptathlon champion.
Chantae McMillan is an American heptathlete who competed at the 2012 Summer Olympics in London.
Kevin Mayer is a French athlete specialising in decathlon and indoor heptathlon. He is two-time world champion, two-time Olympic silver medalist and the world record holder in the decathlon since 2018. He is also a world and three-time European champion in heptathlon.
David Klech is an American decathlete. He attended the University of Oregon, after transferring from the University of California, Los Angeles.
The United States of America will compete at the 2013 World Championships in Athletics from August 10 to August 18 in Moscow, Russia. The membership of the team was selected at the 2013 USA Outdoor Track and Field Championships. However, membership on the team was subject to the athlete achieving a qualification standard. In addition, champions from the previous World Championships and the 2012 IAAF Diamond League receive an automatic bye. An automatic entry is also available to an Area Champion, the IAAF definition of an Area essentially being the specified continental areas of the world. The United States is part of the North American, Central American and Caribbean Athletic Association, which has not held a championship apparently since its inaugural championship in 2007. The deadline for entries was July 20. The final team membership as submitted to the IAAF was announced on July 29, 2013.
James Gunnar Nixon is an American track and field athlete who competes in the decathlon. He broke the American high school record for the event in 2011, and was the World Junior Champion in 2012. He won his first national title indoors in 2013, and was runner-up at the 2013 USA Outdoor Track and Field Championships. His personal record for the decathlon is 8313 points at the 2013 IAAF World Championships.
Combined events at the Summer Olympics have been contested in several formats at the multi-sport event. There are two combined track and field events in the current Olympic athletics programme: a men's decathlon and a women's heptathlon.
Erica Marsha Bougard is an American heptathlete. She was NCAA indoor champion in 2013 and represented the United States at the 2013 World Championships.
Heather Miller-Koch is an American track and field athlete who represents the Central Park Track Club. She participates in multi events, the pentathlon and heptathlon.
Lindon Victor is a Grenadian athlete who competes in the decathlon. He is the 2023 World bronze medalist and a two-time Commonwealth Games champion (2018–2022).
Harry Marra is an American track and field coach. He is best known as the coach of decathlon world record holder Ashton Eaton. After improving the world record twice and two world championship gold medals, Eaton closed off his career by becoming only the third man to defend the Olympic gold medal in the decathlon. Eaton is also the world record holder in the indoor Heptathlon and won three world championships. He also coached Brianne Theisen, Paul Terek, Sheldon Blockburger and four other 8,000 point decathletes; Brian Brophy, Paul Foxon, Bart Goodell and Chris Wilcox. Theisen won two world championship silver medals in the women's heptathlon, plus the Commonwealth Games and world indoor pentathlon gold medalist for Canada. Training partners under Marra, Eaton and Theisen were married in July 2013, officiated by Marra.
Anna Hall is an American athlete specializing in the combined events. She won the silver medal in the heptathlon at the 2023 World Championships and the bronze medal at the 2022 World Championships. Hall is the North American indoor record holder for the pentathlon.
United States 
