Southern California-based trainer Michael Casselman went from horsepower to horse power to find speed and success in the Quarter Horse industry.
From the plains of Nebraska and the peaks of Colorado to Southern California, trainer Michael Casselman’s path to becoming a leading conditioner was anything but straight. He spent years mastering the mechanics of engines and the art of the sale as both a mechanic and a truck salesman, two professions seemingly worlds apart from a starting gate at the racetrack. Yet, for Casselman, his unconventional journey, one built on an eye for detail and a tireless work ethic, prepared him for his career in the equine business. The man who once sold horsepower now cultivates it and has forged a successful career by betting on a longshot: himself.
From the Garage to the Barn
Casselman was born in Nebraska but grew up in Colorado. Though his father was in the grain business, and Casselman spent his early career working for the family, tending to his father’s fleet of trucks as a mechanic, his true passion resided elsewhere. Despite his mechanical start, Casselman’s interest in horses developed organically, pulling him toward a different path.
“We lived in the country, and we learned to ride horses growing up,” Casselman shared. “I don’t remember riding horses at two and three years old, but I have pictures of it. We had family friends in Akron, Colorado, and they had two horses and that’s where I started riding. We just enjoyed riding and those people were kind enough to share their horses with us, so we took advantage of that.”
Growing up, Casselman and his sister, Jo, devoted a significant amount of time to their equine interests. The family involvement continues to this day, as Jo is married to Dr. Steve Burns, DVM, a noted veterinarian, an AQHA Champion Breeder, and Owner, who also grew up near the Casselman family in Colorado.
Casselman’s professional path to training horses is woven into his personal history, stemming from his childhood in rural Colorado. He often credits the influence of his sister and the enduring friendships forged during those early days.
“When Jo and I were young, we had a friend who was a very good barrel racer, and she had a nice barrel racing horse,” Casselman shared. “Jo and I were in a horse club, and we shared our horse with another girl, so three of us would take turns riding this one horse. The big highlight was that I placed third in our county fair barrel racing event.
“In Greeley, Colorado, when we had spring break, we would go back to Akron, Colorado, to hang out with those kids,” Casselman continued. “One of those kids was Steve Burns and another one was another future owner of mine, Kim Kessinger. Both Steve and Kim ended up being prominent in the horse business and they grew up a mile apart from each other. We lost Kim in 2012 in an accident near his Akron home. But it is because of my sister, Jo, and her husband, Steve, that I am in the horse business today.”
Casselman’s early focus was not necessarily focused on horses. Growing up, his social circle, which has proven integral to his success, was initially bonded by school sports and a shared thrill for speed. Casselman reflected on how his first significant hobby was flat-track motorcycle racing, a pursuit that took him across the country.
“We all played football and basketball against each other in junior high and high school, so we would always see each other,” Casselman said of spending time with Steve and Kim growing up. “All of that probably had something to do with how I ended up in the horse business. We also raced flat track motorcycles as a hobby. I begged my dad to get me a motorcycle, and he didn’t want anything to do with it until I got one. Then he was my biggest fan. That was a fun hobby. I really enjoyed it, and we raced motorcycles all over the country.”
Even while building a successful career in the automotive and sales industries, Casselman’s connection to the horse industry remained intact. His professional life after marrying wife, Sharon, in 1974, started with hands-on mechanical work, first for his father’s grain business and later as a truck salesman. However, Casselman notes that the decisive catalyst for his return to the horse business was through Jo and Steve.
“After Sharon and I got married, I worked for my dad in the grain business as a mechanic,” Casselman related. “We had 35 or 40 trucks, and I took care of those. I moved back to Greeley, Colorado, to go to work for an equipment company as a mechanic in ’75 and I was a mechanic for a few years. Then they turned me into a heavy-duty truck salesman. I did that for 22 years altogether. It became a good career. In the meantime…



