Conner Mantz Biography: Wife, Age, Parents, Siblings, Height, Net Worth, Marathon American Record
Conner Blair Mantz, also known as Conner Mantz, is an American long-distance runner who specializes in the marathon and is the current American record holder in the event. He won the 2024 U.S. Olympic Marathon Trials and finished eighth at the Paris 2024 Olympics.
Mantz broke the 23-year-old American marathon record with a time of 2:04:43 at the 2025 Chicago Marathon and also holds the American half marathon record of 59:17.
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He is a two-time NCAA cross country champion and has competed professionally for Nike since 2021.
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| Wiki Facts & About Data | |
| Real Name: | Conner Blair Mantz |
| Stage Name: | Conner Mantz |
| Born: | 8 December 1996 (age 29 years old) |
| Place of Birth: | Logan, Utah, United States |
| Nationality: | American |
| Height: | 1.75 m |
| Parents: | Robert Mantz, Joanna Mantz |
| Siblings: | Garrett Mantz, Clarissa Mantz, Nathan Mantz |
| Spouse: | Kylie Mantz (m. 2022) |
| Relationship: | Married |
| Occupation: | Long-distance runner |
| Net Worth: | $1.5 million |
Early Life and Education
Conner Mantz was born on 8 December 1996 in Logan, Utah, United States. Of American origin and raised in a Christian household by his parents, Robert and Joanna Mantz, alongside his siblings Garrett, Clarissa, and Nathan.
He grew up in Smithfield, Utah, and completed his first half marathon at age twelve, finishing a half marathon in 1:11:26 by age fourteen.
Mantz attended Sky View High School in Smithfield, where he was a three-time All-American at the Foot Locker Cross Country Championships and represented the United States at the 2015 IAAF World Cross Country Championships in China.
He then attended Brigham Young University, where he studied mechanical engineering and graduated in 2021, and took a two-year break from competition to serve a mission trip to Ghana.
Career
Conner Mantz began his collegiate running career at Brigham Young University, where he developed into one of the most decorated distance runners in program history.
He won back-to-back NCAA Division I Cross Country Championships in 2020 and 2021 and finished his college career as an eight-time first-team All-American and three-time individual national champion.
He also contributed to BYU’s 2019 Division I team cross country title. After turning professional in December 2021, Mantz signed with Nike and continued to train in Utah under BYU head coach Ed Eyestone.
Mantz made his marathon debut at the 2022 Chicago Marathon, finishing in 2:08:16, and returned in 2023 to place sixth in 2:07:47.
In 2024, he won the U.S. Olympic Marathon Trials in Orlando with a time of 2:09:05, securing his spot at the Paris Olympics. At the Paris Games, he finished eighth in 2:08:12.
His breakthrough year came in 2025, when he broke Ryan Hall’s 18-year-old American half marathon record with a 59:17 performance at the Houston Half Marathon in January.
In April, he finished fourth at the Boston Marathon in 2:05:08, the fastest time ever run by an American on that course.
In October 2025, Mantz achieved his greatest milestone by winning the Chicago Marathon in 2:04:43, breaking Khalid Khannouchi’s 23-year-old American record and becoming the fastest American marathoner in history.
In 2026, he finished fourth at the Boston Marathon and competed in the New York City Marathon.
His career has established him as one of the premier American distance runners of his generation, known for his relentless training, tactical racing, and consistent excellence on the roads.

Social Media
- Instagram Handle: @connermantz
Personal Life
Conner Mantz is married to Kylie Mantz, whom he wed in 2022, just six days after his professional marathon debut in Chicago. The couple met while attending BYU and live in Utah. They have no children.
Kylie, a former BYU track athlete who walked onto the team after their marriage, has become a competitive runner herself, winning her marathon debut in 2025 with Conner pacing her.
Mantz is a devout member of the Church of Jesus Christ of Latter-day Saints and served a two-year mission in Ghana.
Net Worth
Conner Mantz has an estimated net worth of $1.5 million, built through his career as a professional marathon runner.
His income sources include his contract with Nike, prize money from major marathon victories and high placements, performance bonuses for record-breaking runs, and sponsorship agreements.
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