Conner Mantz is an American long-distance runner and marathoner, known for his impressive achievements on both the collegiate and professional stages. A Brigham Young University (BYU) alumnus, Mantz is a two-time NCAA Division 1 Cross Country Champion and was the winner of the 2024 U.S. Olympic team trials. His coach, Ed Eyestone, once said, “Until he’s at the level of Eliud Kipchoge in his prime, winning everything and running faster at everything, I think there is going to be that sense of wanting more. That’s what makes him so competitive.”

What Is Conner Mantz’s Age, Height, and Weight?

Mantz was born on December 8, 1996. Speaking of his height, the 28-year-old stands at 5 feet and nine inches and weighs 125 lbs. All of this contributes to his light and lean physique, which is very beneficial for long-distance running because it makes sure his muscles and cardiovascular system can operate more efficiently, requiring less energy per stride. A lighter frame also reduces the impact stress on his joints, lowering fatigue and the risk of injury during grueling races.

What Is Conner Mantz’s Ethnicity and Nationality?

The long-distance runner was born in Logan, Utah. Religiously, he is a member of The Church of Jesus Christ of Latter-day Saints, where he served as a missionary. Mantz was called to serve in Ghana, West Africa, as part of the Ghana Africa Mission from 2015 to 2017. During his service in Africa, he claims to have witnessed many miracles and discovered how faith in God could guide him toward success.

Although he initially tried to continue running while on his mission, he found it distracted him from his spiritual duties. When he chose to set aside his personal ambitions and fully dedicate himself to missionary work, he says he began to experience profound spiritual blessings and growth. “It’s funny because as soon as I stopped running, I was gaining less and less weight. I gained 30 pounds in first eight months…and then I lost 10 pounds. When I came home, I was only 20 pounds over my old race weight,” the athlete said in a statement.

Who Are Conner Mantz’s Parents?

The American long-distance runner was born to Robert and Joanna Mantz. It was Robert who introduced his son to running. He was a former wrestler at Weber State, but the need to lose weight made him switch to Marathoning. His passion for the sport eventually inspired his son, who began riding his bike alongside his father. “I saw him running and he loved it,” said the younger Mantz.

In an interview, he said, “Right before my first marathon, my dad gave me a ton of advice…I remember my dad took eight tries just to qualify, and it was really a big deal for him just to run it. For me, it’s always been the race I’ve always wanted to run. … Everybody somehow has a story with Boston — a runner who qualified, someone who wants to qualify for Boston — and it’s really cool just to be able to race there.”

Who Is Conner Mantz’s Wife?

Kylie Mantz pursued a degree in Elementary Education at Brigham Young University (BYU), where she balanced academics with her growing interest in athletics. In 2019, Kylie Mantz started her freshman year at BYU, and in the fall of that year, she met Conner in a Book of Mormon class. The American record-holder in the half-marathon was wearing a BYU track backpack, and she asked him if he was on the team. “I just thought he was a guy who liked to run, like me,” Mantz said. What followed was them dating each other, which evolved into a marriage in September 2022.

But things shifted six months into the marriage as she failed to understand how her husband was so tired from his marathon runs. “He would get back from runs and need to sit down, and I was like, there’s laundry to do, dishes in the sink, and life to do, and you just want to sit there and not do anything?” she said. Curious to understand what her husband went through, Kylie decided to experience it herself. She started running on her own, pushing herself at top speed, until Conner suggested she mix up her pace and distances for better training.

By April 2023, Kylie had joined BYU’s club track team. Just a year later, she ran her first collegiate 5,000 meters at the Bryan Clay Invitational in 17:19. After chatting with BYU coach Diljeet Taylor, she set her sights on joining the official team. Leading up to her own collegiate running career, Kylie continued to support Conner as he competed for the U.S. at the 2024 Paris Olympics.

Where Did Conner Mantz Go to College?

The 28-year-old went to Brigham Young University (BYU), where he majored in Mechanical Engineering, but it wasn’t the machine that he excelled in. It was his love for sprinting, fast runs, which were evident in his collegiate track and field career. Before turning professional, Conner Mantz made a name for himself in collegiate running. He won individual titles at the NCAA Division I Cross Country Championships in both 2020 and 2021.

He also ran a world-leading 13:28.00 in the 5000 meters at the 2021 UW Invitational, setting a new BYU indoor record. The man behind such talent? Ed Eyestone, a two-time Olympic marathoner and BYU’s head coach, has played a pivotal role in the athlete’s track career. He was the man who helped not only Conner Mantz but also another BYU alumnus, Clayton Young, to qualify for a spot on Team USA in the marathon for the 2024 Olympics in Paris, France.

What Is Conner Mantz’s Net Worth?

As of March 2025, Conner Mantz is estimated to have a net worth of around $1.59 million USD, built through a combination of race winnings, sponsorships, and endorsements, including his professional contract with Nike. His success on the track has brought him significant prize money. For example, at the 2025 Houston Half Marathon, he not only finished second but also broke the American record with a time of 59:17, earning $8,000 for his placement and an extra $10,000 for setting the record.

Plus, he is sponsored by Nike. Most recently, Nike made Conner Mantz shirts for the 2025 Chicago Marathon with the motto, “Going for it.” He even calls himself, Professional Marathoner for Nike on his LinkedIn.

Alongside his Nike sponsorship, Conner Mantz works with Maurten, a company that produces sports nutrition products to support athletes. He is also sponsored by Garmin Running and Shokz USA. Garmin is known for its GPS watches and training tools, while Shokz makes bone-conduction headphones designed for safe listening during activities like running. “When I’m alone on easy runs, I wear Shokz headphones because they’re open-ear headphones that allow you to listen to your music and pay attention to what’s going on around you,” he said recently.

Conner Mantz’s Career Highlights

After making and breaking records at BYU, the 28-year-old turned pro in 2021 and then started to make a name. He entered the marathon scene with his debut at the 2022 Chicago Marathon, finishing as the top American in 2:08:16. This momentum was carried in his rise in 2024 by winning the U.S. Olympic Marathon Trials in 2:09:05, which earned him a spot at the Paris Olympics, where he placed 8th. In 2025, Mantz kept pushing his limits. Recently, he said, “Every year you can keep just chipping away at your times for any event that you’re focused on, and maybe you can drop just a little bit more time. And this year in Boston, I really showed that I was someone who could compete up front at a marathon.” What happened in Boston?

He recorded a personal best of 2:05:08 at the Boston Marathon and broke an 18-year-old American record with a time of 59:17 at the Houston Half Marathon. In the same interview, he also said, “I’m going for it. Back in January in Houston I was kind of injured for the half marathon and wasn’t really sure what was gonna happen. So I just made my goal to go out and just shoot for it, kind of like, ‘Let’s see how long it can hold onto that pace.’ And so this is going to be similar. I’m going to go out at American record pace [4:48 per mile] and then will hold on and hopefully speed up at the end. That’s pretty much my plan.” His next stop is not only the 2025 Chicago Marathon but Khalid Khannouchi’s 23-year-old American record (2:05:38) as well.