Greta Shaffer

Age: 24
Residence: Colorado Springs, CO
Occupation: Partnerships Coordinator at USAT

Hello! I’m Greta, and I’m thrilled to be joining the From The Ground Up Team. Originally from Lafayette, Indiana, I now call Colorado Springs, Colorado home. I work in partnerships at USA Triathlon, and when I’m not focused on that, you’ll likely find me out on the trails—whether it's tackling the famous Manitou Incline or exploring new outdoor adventures. As a twin with two younger sisters, I’ve always appreciated the importance of building strong connections and nurturing meaningful relationships. My background as a collegiate athlete has instilled in me a deep love for movement, and I’m always seeking new challenges to push my limits. While I’m still a newbie to mountain biking (and biking in general!), I’m excited to not only grow stronger this year but also to meet new people, learn a new sport, forge meaningful connections, and share in the journey with others who love adventure and the great outdoors as much as I do.

Bike: Coming soon

Kimberly Callton

Age: 41
Residence: Lansing, MI
Occupation: Radiologic Technologist/ Mom/ Adventurer

My life is rarely quiet—I tend to take on a lot, driven by a deep curiosity and a love for life itself. I grew up in a rural community where having a bike meant freedom and adventure. Cycling started with my dad, who raised my brother and me to explore the world with open minds and open hearts. That spirit of discovery and resilience still drives me and now, I’m working to pass it on to my children.

As a mom, every challenge I take on is bigger than just me. I want my kids to know that no matter what life throws at you—and it will throw things—you can rise, adapt, and keep moving forward. I want them to see that bravery isn’t about having no fear. It’s about choosing to grow through discomfort, to chase dreams even when they’re hard, and to lean into life fully.

My work as a Travel Radiologic Technologist gives me the chance to serve communities across the country, and in doing so, I’m learning the value of building connection wherever I go. I’ve spent most of my life being fiercely independent, but now I’m learning a new kind of strength—the kind that comes from showing up with others. I want my children to grow up knowing both: how to stand on their own and how to stand with others.

This ride is part of that lesson. It's about grit, joy, connection, and showing the next generation what it looks like to never stop growing. This project isn’t just about proving what I can do on my own; it’s about learning to trust, to be part of something bigger, and to discover what’s possible when we support each other in doing great things.

Bike: Coming Soon

Louis Martinez

Age: 38
Residence: Layfette, CO
Occupation: Tax Accountant, Insurance, Entrepeneur (pick a day)

Louis or Lou is the charismatic family member who we don’t think you will ever see not smiling! His infectious desire to just dive in tied this team together in the best way possible! SBT GRVL is going to test Lou in different ways, but with a bike like that, is anything holding him back?

Bike: Pinarello Grevil Gravel Bike with Shimano GRX, I9 Solix Wheels and 42mm Teravail Rutland Tires

Richard Wright

Age: 60
Residence: Lincoln, NE
Occupation: Rehabber, fisherman, Explorer, life enjoyer, grumpy “get off my lawn” old man 😜 (oh and insurance guy)

Rich is our oldest competitor ever, but don’t let that fool you! After buying a bike a police auction Richard has found the love and feelings we all have on the bike: “When I ride, I can clear my head of work and other things, just concentrate on the ride, the road, my surroundings, the bike. It's freeing.”

Bike: Scott Addict Gravel with Shimano GRX, I9 Solix Wheels and 47mm Teravail Rutland Tires

Mohnish Chakravarti

Age: 24
Residence: Atlanta, GA
Occupation: Founder and CEO of Rails

Mohnish founded and currently runs a technology start up in the supply chain industry. He started riding during 2020 and since then has started to accumulate the miles and the bikes! Mohnish is driven in everything he does on and off the bike and took Leadville by storm in 2023!

Kawika Mitchell

Age: 43
Residence: Maitland, FL
Occupation: HS Football coach and EX NFL player

Kawika Mitchell is a family man and former linebacker in the NFL. Kawika played for the Kansas City Chiefs, New York Giants, Buffalo Bills and New Orleans Saints before retiring in 2010. He took up road biking about 2 years ago and fell in love with sport all over again, the only thing better; Mountain biking. Kawika is not deterred by his size and will do just about anything to finish the Leadville 100 with his family watching!

David Olague

Age: 34
Residence: San Fernando, CA
Occupation: Facility Technician at 24 Hour Fitness

David recently realized that he wants to get back to the adventurous athlete that he once was. Extremely dedicated and motivated - the person everyone wants on their team!

Enzo Moscarella

Age: 34
Residence: Queens, NY
Born: Barranquilla, Colombia
Occupation: Decorative Plaster Artist

Back for season 2, we wanted to give Enzo another crack at Leadville after being ‘oh so close’ in 2021. An artist by trade, Enzo Antonio Moscarella, 34, is originally from Colombia, and now a resident of Queens in New York City. Like most, 2020 brought massive changes to Enzo's life. The reduced traffic allowed him to rediscover cycling on his fixie—when he realized the magnitude of the challenge offered by Leadville, Enzo did not hesitate to apply.

Enzo Moscarella

Age: 34
Residence: Queens, NY
Born: Barranquilla, Colombia
Occupation: Decorative Plaster Artist

An artist by trade, Enzo Antonio Moscarella, 34, is originally from Colombia, and now a resident of Queens in New York City. Like most, 2020 brought massive changes to Enzo's life. The reduced traffic allowed him to rediscover cycling on his fixie—when he realized the magnitude of the challenge offered by Leadville, Enzo did not hesitate to apply.