Executives often discuss resilience, mental toughness, and sustained performance. Few actually build these capabilities systematically. The gap between talking about resilience and developing it appears clearly in how high performers structure their lives outside work.

Karl Studer runs half-marathons, Spartan races, and other endurance challenges not for recreation but for capability development. The distinction matters.

“You have to keep your body in shape to keep your mind healthy enough to have endurance,” Studer explains. “Your mind is like a muscle—if you don’t train it and push it and give it a break and then push it again, your body somehow goes hand-in-hand with it.”

The mind-body connection isn’t metaphorical. Neurological research confirms that physical endurance training creates neural adaptations that enhance cognitive performance under stress. The discipline required to complete difficult physical challenges transfers directly to professional contexts requiring sustained effort under adversity.

“For me, I’ve always had to be active. I have to be up. Even if I’m in New York in a different time zone, I’m up at 3:00 AM so I can go work out for an hour, just because I need that to… I don’t know how others don’t do it to be honest,” Studer notes.

This need for physical engagement shapes everything else. Rather than viewing exercise as competing with professional obligations, he integrates them strategically. Morning workouts provide cognitive preparation for demanding days. The physical challenge clears mental space for complex problem-solving.

“Without it, for me, I just have a day that’s no fun,” he observes.

The competitive element adds another dimension. Studer doesn’t just exercise—he competes. Recently running a half-marathon with his son and fraternity brothers, the motivation was explicit: “Only if I get to beat you and a handful of your fraternity buddies.”

The competitive drive channels effort that might otherwise dissipate. Abstract fitness goals lack the forcing function that competition provides. When someone is trying to beat you, effort becomes mandatory rather than optional.

“One of them got me, but he was like a sleeper cross-country kid. I don’t know where he came from. He knew how to run. And my wife beat me, but that was it,” Studer reports with the detailed score-keeping that characterizes competitive personalities.

This tracking reveals something about high-performance psychology. Winners measure results precisely. They remember who beat them and by how much. They use these data points to fuel future effort.

“I just ran the fastest half-marathon I’ve ever ran in my entire life. I just ran the fastest mile I’ve ever ran, I think almost since the last 20 years,” Studer notes, demonstrating the continuous improvement mindset that characterizes sustained high achievement.

The competitive framework extends beyond races to how he structures training. “My son was trying to run with me right up to about a mile 11,” he explains. Running with someone faster forces pace that training alone wouldn’t demand.

This principle—using competition to force performance beyond comfortable levels—applies equally to business contexts. Teams perform differently when competing against external benchmarks versus just meeting internal standards.

“Competitions pretty healthy,” Studer observes. “And when I think of what really drives me at times, I’m okay losing, but I’m not going to lose because I didn’t give it all my effort.”

This distinction between outcome and effort provides psychological framework for sustainable competition. Losing despite maximum effort doesn’t create defeat. Losing due to insufficient effort creates regret.

“The Spartan races and all these others—one of the guys I work with, he’s a health nut and pretty competitive too. Every year we just have a random idea to do some race that sounds stupid, hurts for weeks after, and requires all this extra training time,” Studer describes.

The stupidity is the point. Reasonable challenges don’t build the same capabilities as unreasonable ones. Completing a difficult race proves something that completing an easy race cannot.

“And every year we go and do it only to compete with each other. And he beats me every time, but I keep getting closer all the time,” Studer adds.

The annual tradition creates multiple forcing functions: scheduled competition, peer accountability, and measured progress. These elements combine to ensure consistent effort rather than sporadic engagement.

“That’s just how I live my life. I’m okay if I don’t win, but you won’t find that it’s due to a lack of how hard I try,” he explains.

This competitive philosophy shapes professional approach. Studer’s business units consistently performed at two to three times peer rates—not by accident but by applying competitive intensity to operational performance.

The integration between physical and professional competition extends to how training time gets utilized. “Someone says, ‘Well, how do you have all that time to do it?’ And I said, ‘Well, I’m not listening to music or something. I turn on earnings calls and I go listen to things like that,'” Studer explains.

During morning workouts, he watches CNBC and Squawk Box. During runs, he listens to utility earnings calls and competitor analysis. The time serves dual purpose—physical conditioning and competitive intelligence gathering.

“So I’m hearing utilities earnings calls. I’m hearing other competitors’ earnings call while I’m running. Actually, it’s a great use of time,” he notes.

Critics might argue this represents inability to rest or disconnect. Studer would counter that the criticism assumes work and exercise must be separate rather than complementary activities that enhance each other.

The cognitive benefits of this integration manifest in how physical challenge creates mental capacity for complex analysis. The endurance required to run 13 miles while listening to financial information builds the sustained attention that professional performance requires.

“When I work out every morning, I’m watching CNBC and Squawk Box and using all that time. For me, I’ve turned it into a multitasking way of getting to the same place,” Studer describes.

For executives seeking similar capability development, the prescription involves several elements:

Choose genuine challenges that require significant effort and create possibility of failure. Comfortable exercise builds fitness but not mental toughness.

Compete regularly against external benchmarks or peers. Self-directed training lacks the forcing function that competition provides.

Measure progress precisely to maintain motivation through incremental improvement when major victories don’t occur.

Integrate strategically by combining physical training with professional development rather than treating them as competing demands.

Maintain consistency through scheduled events that create commitment rather than relying on motivation that fluctuates.

The competitive element particularly matters for sustained high performance. “Life is full of hard challenges. You’ll never avoid them completely, so why not make yourself strong enough to handle whatever comes your way?” Studer argues.

This preparation philosophy applies equally to physical and professional challenges. Just as endurance training prepares the body for races, the mental discipline endurance requires prepares the mind for sustained professional performance.

The transformation happens gradually but cumulatively. Each race builds slightly more capability. Each training cycle reinforces discipline. Over years, these incremental improvements compound into significantly enhanced performance capacity.

“Pushing myself through endurance races helps me strengthen my mind as much as my body,” Studer notes.

The mind-strengthening occurs through confronting and overcoming discomfort repeatedly. Races hurt. The final miles of marathons create genuine suffering. The choice to continue rather than quit builds capability that translates to professional contexts.

When complex projects require sustained effort over months or years, the discipline developed through endurance racing provides template for persistence. The experience of pushing through physical discomfort to reach a finish line creates mental reference point for pushing through professional challenges to reach goals.

For high performers seeking to maintain edge, the lesson involves recognizing that capability requires active development. You don’t maintain mental toughness through comfort. You build it through voluntary exposure to difficulty.

Endurance racing provides structured, measurable difficulty that can be calibrated to capability. Unlike professional challenges that arrive unpredictably, races can be scheduled and prepared for systematically.

The competitive element adds accountability that self-directed training lacks. “And he beats me every time, but I keep getting closer all the time,” Studer says of his yearly competitions.

This closing gap represents progress measurement that motivates continued effort. Without competition, improvement becomes abstract. With competition, it becomes concrete—either you beat them or you didn’t, and by how much.

The integration of physical competition into high-performance professional life isn’t universal requirement. Some people perform exceptionally without athletic pursuits. But for those seeking additional performance edges, the evidence suggests physical challenge develops capabilities that purely cognitive training cannot replicate.

“When I think of what really drives me at times, I’m okay losing, but I’m not going to lose because I didn’t give it all my effort,” Studer reflects.

This effort-focused rather than outcome-focused mentality creates sustainable competition. The outcome depends partly on factors beyond control—who else competes, conditions on race day, recent injuries or illness. The effort depends entirely on choice.

By defining success through effort rather than outcome, competitive engagement remains psychologically sustainable even when winning becomes impossible. The 55-year-old executive won’t beat 25-year-old competitive runners. But he can ensure he gives maximum effort—and that effort builds capability regardless of placing.

For professionals seeking similar benefits, the prescription is straightforward: find difficult physical challenges, compete regularly, measure progress, and integrate strategically with professional obligations. The specific activity matters less than the principles applied.

The transformation won’t happen immediately. Building genuine capability requires months and years of consistent effort. But for those willing to commit, the compound returns on physical and mental development prove substantial.

As Karl Studer demonstrates, competitive mindset developed through endurance racing creates capabilities that transfer directly to professional contexts requiring sustained performance under adversity. The question isn’t whether it works. The question is whether you’re willing to do the work.