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.
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 United States Olympic Trials (marathon) in Atlanta with a time of 2:09:20, and qualified for the 2020 Tokyo Olympic Games, where he finished eighth.
Edward D. Eyestone is a two-time Olympic marathoner, long-distance runner, and an NCAA coach for the BYU Track Team. Eyestone was named National Coach of the Year in 2019 and 2024, after leading his NCAA D1 men's cross country teams to NCAA championships.
Henry Dinwoodey Marsh is a retired runner from the United States, who made four U.S. Olympic teams and represented his native country in the men's 3,000 meter Steeplechase in three Summer Olympics, from 1976 through 1988.
Desiree "Des" Nicole Linden is an American long-distance runner, author, and podcaster. She represented the United States in the 2012 London Olympics and the 2016 Rio de Janeiro Olympics women's marathon. In 2018, she won the Boston Marathon, becoming the first American in 33 years to win the woman's category in the event. She holds the women's 50K world record of 2:59:54.
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.
Grant Jackson Fisher is an American middle- and long-distance runner. Fisher holds American records in the 3000 m, two mile, 5000 m, and 10,000 m events. At the 2024 Paris Olympics, Fisher won bronze medals in the 5000 m and 10,000 m, becoming the first American to medal in both events at an Olympic Games.
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.
Shaquille Walker is an American retired track runner competing for the United States and a former Brigham Young University track student-athlete.
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.
Rory Linkletter is a Canadian long-distance runner. He represented Canada in the marathon at the 2022 and 2023 World Championships. He holds a personal best of 2:08:01 set at the 2024 Seville Marathon making him the second fastest Canadian of all time over the distance. He formerly held the Canadian half marathon record from January to October 2022 set at the 2022 Houston Half Marathon.
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.
Weini Kelati Frezghi is an American middle and long distance runner. Born in Eritrea, she claimed asylum in the United States in July 2014 and subsequently achieved multiple victories in state and national level competitions while attending Heritage High School in Leesburg, Virginia. While competing for the University of New Mexico, Kelati won the 2019 NCAA Division I Cross Country Championships.
Bryce Deadmon is an American track and field athlete. In July 2023, he became US national champion in the 400 meters.
Annie Frisbie is an American long-distance runner sponsored by Puma.
Conner Blair Mantz is an American long-distance runner, who specializes in the marathon. He ran collegiately for Brigham Young University and won the 2020 and 2021 NCAA Division I Cross Country Championships. Mantz was the winner of the 2024 U.S. Olympic Marathon Trials. At the 2025 Houston Half Marathon, Mantz set a new American record time of 59:17, besting the previous record of 59:43 set by Ryan Hall in 2007. He has competed professionally for Nike since 2021.
Zach McWhorter is an American pole vaulter. At the 2023 USA Outdoor Track and Field Championships he placed second behind Olympic silver medalist Chris Nilsen, with a clearance of 5.86 m. This earned him a spot on the United States team at the 2023 World Athletics Championships, where he would go on to place 8th overall.
The 2024 U.S. Olympic Team Trials – Marathon was held on Saturday, February 3, 2024, in Orlando, Florida, to determine the American athletes who will compete in the marathon event at the 2024 Summer Olympics in Paris, France. The race was hosted by the city of Orlando, in partnership with Orange County, Track Shack Events, the Greater Orlando Sports Commission, USA Track & Field, and the United States Olympic & Paralympic Committee.
Zach Panning is an American long distance runner and marathoner. He ran collegiately at Grand Valley State University where he won an NCAA Division II Cross Country championship in 2018. He ran for team USA at the 2023 World Athletics Championships. Panning Qualified for the 2024 United States Olympic marathon trials following the Chicago Marathon, at the trials he finished 6th after leading for the majority of the race.
United States 
