Dathan James Ritzenhein is a retired American long-distance runner, and current head coach of the On Athletics Club (OAC). He held the American record in the 5,000 metres (12:56.27) from 2009 to 2010, until it was broken by Bernard Lagat. He is a three-time national cross country champion with wins at the USA Cross Country Championships in 2005, 2008 and 2010. Formerly a Nike athlete for the majority of his professional career, Dathan joined the Hansons-Brooks Distance Project team in 2017. In early May 2020, he announced his retirement from competition. He signed with the Swiss shoe brand On shortly thereafter in June 2020 and currently acts as the coach for the OAC in Boulder, Colorado.
Ryan Hall is a retired American long-distance runner who holds the U.S. record in the half marathon. With his half marathon record time (59:43), he became the first U.S. runner to break the one-hour barrier in the event. He is also the only American to run a sub-2:05 marathon. However, this time is not eligible to be a record due to the course being point-to-point and a net-downhill course. Hall won the marathon at the 2008 United States Olympic trials and placed tenth in the Olympic marathon in Beijing.
Galen Rupp is an American long-distance runner. He competed in the Summer Olympics in 2008 in Beijing, 2012 in London, 2016 in Rio de Janeiro and 2021 in Tokyo. He won the silver medal in the men's 10,000 meters in London and the bronze medal in the men's marathon in Rio de Janeiro. Rupp competed for the University of Oregon and trained under Alberto Salazar as a member of the Nike Oregon Project. He won the 2017 Chicago Marathon, becoming the first American to do so since Khalid Khannouchi in 2002. Rupp won the marathon at the 2020 U.S. Olympic Trials in Atlanta with a time of 2:09:20, and qualified for the 2020 Tokyo Olympic Games, where he finished eighth.
Shalane Grace Flanagan is an American long-distance runner, coach, Olympic medalist and New York City Marathon champion. She was the first American woman to win the New York City Marathon since 1977. She holds the NACAC area records in both the 10k and 15k road races.
Matthew "Teg" Tegenkamp is a retired professional runner from Lee's Summit, Missouri who specialized in various long-distance events. Tegenkamp represented the United States at two Summer Olympics, in 2008 and 2012. He trained with other members of the KIMbia Athletics group and was sponsored by Nike during his professional career. Tegenkamp set an American record in the outdoor two mile[PRs] and also achieved other performances that were near record breaking during his career.
Brian Sell is a retired American long-distance runner who specialized in various long-distance track events before specializing as a marathoner in his professional career with Hansons-Brooks Distance Project. Sell represented the United States at the 2008 Summer Olympics in the men's marathon. He attended Saint Francis University in Loretto, Pennsylvania, where he ran on the Saint Francis University cross country team.
Chris Derrick is an American distance runner who won 3 consecutive US Cross Country Championships in 2013–15. He attended Stanford University, where he earned 14 All-American honors and holds an American junior record in the 5000 meters.
The 2004 United States Olympic trials for track and field were held at Hornet Stadium in Sacramento, California. Organised by USA Track and Field, the ten-day competition lasted from July 9 until July 18 and served as the national championships in track and field for the United States.
Juan Diego Estrada Constantino is a Mexican-American long-distance runner. He competed in the 10,000 metres at the 2012 Summer Olympics in London for Mexico. After some confusion about his eligibility after becoming a U.S. citizen, he was excluded from the U.S. Olympic trials even though it was later known that Estrada was misinformed on his eligibility possibilities. Estrada resides in Flagstaff, Arizona.
Benjamin True is an American track and field and cross-country athlete, who competed for Dartmouth College and currently trains in Hanover, New Hampshire, while competing for Saucony and In the Arena. True was the top American at both the 2011 and 2013 IAAF World Cross Country Championships, as well as the 2011 USATF Road Running Circuit Champion, winning the 5 km and 10 km Road Championships along the way.
Jared Ward is an American long distance runner. He qualified for the 2016 Summer Olympics when he placed third in the marathon at the 2016 US Olympic Trials. He finished sixth at the 2016 Olympics.
Emily Sisson is an American long-distance runner. She set the North American record in the marathon on October 9, 2022, when she ran 2:18:29 to finish second at the Chicago Marathon. Sisson also held the American record in the half marathon from May 2022 until July 2023. She represented the United States in the 10000 metres at the 2017 and 2019 World Athletics Championships, finishing 9th and 10th. In June 2021, she won the 10000m at the 2020 US Olympic Trials and placed 10th in the 10000m final at the 2020 Summer Olympics. In 2024, she placed second in the marathon at the US Olympic Trials, qualifying for the 2024 Summer Olympics. She competed in the 2024 Paris Olympics Women's marathon on 11 August 2024, where she finished 23rd.
Erin Finn is a female long-distance runner from the United States. She competed in the 2013 IAAF World Cross Country Championships – Junior women's race placing 34th in 20:03.
Aliphine Chepkerker Tuliamuk is a Kenyan-born American long-distance runner. She placed first at the 2020 Olympic Marathon trials in Atlanta and represented the United States at the 2021 Olympic Games in Tokyo, Japan. Tuliamuk has been a world class athlete since placing 9th in 21:09 at 2005 IAAF World Cross Country Championships – Junior women's race. Tuliamuk ran 33:43 to place 15th at 2017 IAAF World Cross Country Championships. Tuliamuk placed 3rd at 2019 Rotterdam Marathon in 2:26:50.
Molly Seidel is an American long distance runner. Seidel represented the United States at the Great Edinburgh Cross Country in 2012, 2013, and 2018. In her first-ever marathon, Seidel placed second at the 2020 U.S. Marathon Olympic Trials. Later, she went on to win the bronze medal in her third career marathon at the 2020 Summer Olympics in Tokyo. At the University of Notre Dame, Seidel was a 4-time NCAA champion, 6-time NCAA All-American, 6-time Atlantic Coast Conference champion and 2016 female ACC Athlete of the Year.
Stephanie Bruce is an American long-distance runner.
Allison Kieffer is an American athlete who competes in distance running events. Kieffer placed 5th in 2:29:39 at the 2017 New York City Marathon. She placed 7th at the 2018 New York City Marathon with a time of 2:28:12. Kieffer is a coach and nutritionist.
Sarah Pagano Buchanan is an American long-distance runner. She is referred to as "Spags" by friends and teammates.
Joe Klecker is an American long-distance runner. After a successful collegiate career with the Colorado Buffaloes he turned professional in 2020 joining the On Athletics Club coached by Dathan Ritzenhein. Klecker holds personal bests of 3:37.00 for 1500m, 7:34.14 for 3000m, 12:54.99 for 5000m, and 27:07.57 for 10000m, all set as a part of the On Athletics Club.
Reed Fischer is an American long-distance runner who won bronze in the 10,000-meter race at the 2018 NACAC Championships. Fischer was later selected for the American team in the 2023 World Athletics Half Marathon Championship.
