Catholic ultra-endurance runner inspires men to strive for holiness

CNA Staff, Oct 11, 2025 / 06:00 am (CNA).

Five years ago, Jonathan Kuplack was speaking with a friend about the need for men to have communities where they can be open with one another, challenge each other, and be inspired to become the men God intended them to be. 

The conversation led Kuplack to launch a Catholic nonprofit called “Sebaste” — which comes from the story of the 40 Martyrs of Sebaste — that challenges men to become saints through intensive summer programs, adventure, brotherhood, physical challenge, and prayer.

Kuplack lives this mission by example. From Sept. 26–28, the 37-year-old participated in “The Mammoth” — a 214-mile race through the Eastern Sierras in California — with the hope to inspire other men across the country.

As an avid endurance runner, Kuplack told CNA that he receives a “deep joy and peace” from training for races and “there’s a unity with the divine that happens — it’s very hard to explain — when I’m running through mountains and it’s silent.”

Earlier this year, Kuplack ran across the United States — 3,500 miles in 100 days — stopping to speak at churches, schools, and on podcasts. 

He said he was inspired to take part in “The Mammoth” because he believes everyone needs to get out of their comfort zone in order for growth to happen. 

“We need to grow and there’s only growth on the other side of our fear and the other side of our comfort zone,” he said. “And as long as we stay in the places where we’re comfortable, we will never grow.” 

Kuplack also wanted to motivate other men to “go to the other side of the fear and get uncomfortable and pay the price so that we can live in the fullness of joy and abundance that Christ came to give us.”

Kuplack went into “The Mammoth” hoping to finish the race within 48 hours. However, things did not go as planned and he finished the race after 71 and a half hours. 

For the first 70 miles Kuplack was at the front of the pack, but after a 28-and-a-half-mile stretch without an aid station — a stop along the course that provides runners with nutrition and hydration — his body was left depleted and he spent 45 minutes at the next aid station in a borderline hypothermic state. 

“That experience took me down and for the next 80 miles I was crawling. I was going so slow,” he recalled. “Every step was very painful and I didn’t even know if I was going to finish at that point.”

Thanks to an hour nap and refueling his body with more food, he was able to finish the last 50 miles. 

There were several takeaways from his experience of that race, including “the need to let go of our ego in order for God’s plan to play out in our lives and the need for transcendent experiences.”

“Going into this race, I’m giving this race to the Lord, I’m running for God. I’m saying to God, ‘If you grant me the victory, help me to just reflect that back onto you so everyone can see you.’ But as the race unfolded, I realized it was still about me. It’s so difficult to get out of the ego,” he said. 

He said the experience helped him realize that it’s “only when we find our part in God’s grand play, in his big movie, in his theodrama, do we become fully alive and fully actualized and become the great saints we’re made to be.”

Kuplack also highlighted the importance of “transcendent experiences in our lives.” 

“We need to have experiences that get us outside of ourselves so that we can look down and see our life from altitude. Look down from 30,000 feet and see the big picture. And these transcendent experiences draw us out of ourselves,” he said. 

“It’s like when the small group of apostles was up on the mountain and at the Transfiguration. They were drawn into something so much bigger and beautiful, but it gave a whole new perspective to their life when they went back down the mountain,” he explained. “And in these races, you’re running through incredible natural beauty, climbing mountains, descending. I saw the sun go down three times and rise three times in these incredible places where most people never get to go and I just got to be living and moving through that for 71 hours.”

“As painful as it was, it was such a gift. So it just sucks you out of yourself and you realize, wow God you are truly magnificent and great.”

Kuplack is hoping to inspire men to join in Sebaste’s “Choose the Cross” initiative, which invites men to commit to eliminating one habit or vice that may be hurting their relationship with God, engage in one physical activity daily, and do one spiritual act daily. 

He said he hopes more men will feel called to making a “full commitment to holiness and being a great saint.”

Source: https://www.catholicnewsagency.com/news/267067/catholic-ultra-endurance-runner-inspires-men-to-strive-for-holiness