Beyond the Finish Line: How Marathon Training Transformed My Mindset

By: Brooke Owen

October 15, 2025

Running a marathon is more than just covering 26.2 miles, it’s a test of endurance, resilience, and self-discovery. The event takes its name from the legend of Pheidippides, a Greek messenger who, during the Battle of Marathon in 490 BC, is said to have witnessed a Persian vessel turning toward Athens as the Greeks neared victory. Fearing the Persians would claim a false triumph, Pheidippides ran the entire distance to Athens without stopping to proclaim, “We have won!” before collapsing from exhaustion. 

While today’s marathons are run under very different circumstances, the spirit of determination and purpose remains at the heart of the experience. Now held in cities around the world, marathons have become a deeply personal challenge for people of all backgrounds and abilities. Whether you’re chasing a personal best or simply hoping to finish, the lessons learned along the way are timeless.

In this post, I’ll share what marathon training taught me not just about running, but about growth, mindset, and facilitating self-improvement. From building a support system to embracing imperfection, the journey to race day was full of moments that challenged my assumptions and reshaped how I approach both personal and professional goals far beyond the miles I logged.

Surround Yourself with People Who Inspire You

According to The Running Week, less than 1% of the world’s population has completed a marathon. While several factors such as access, data reporting, and personal interest may influence that number, it remains clear that this feat is taken on by the few and not the many. That combination of shared accountability and a supportive, goal-driven community made all the difference. In this running club, I found individuals who showed up, pushed themselves, and supported one another–reminding me that failure isn’t the enemy, but giving up on yourself is.

When I joined a local running club last August, I found myself in a community brimming with those few. It was a group where many members had completed marathons and were actively helping one another pursue ambitious goals. Being part of that environment made the idea of running a marathon feel far more attainable because I wasn’t just hearing about it in theory, I was listening to firsthand experiences from people I actually knew. 

One friend in particular had completed the Long Beach Marathon in 2024, and his accomplishment inspired a small group of us to commit to the same race the following year. Together, we encouraged each other to sign up, stay consistent with training, and push beyond our comfort zones. Without that collective energy, I’m not sure I would have registered or felt motivated to follow through with the race. What once felt like a distant bucket-list item started to take shape as a realistic goal.

Focus on Your Own Path

While others can be a great source of inspiration, marathon training–and life–is ultimately a personal journey. Everyone has their own goals, motivations, and pace. This understanding didn’t stop me from feeling pressure to match others’ performance, but I had to remind myself that different goals require different strategies. Running slower at my own pace was not less valuable than someone else’s faster run, we were simply on different paths.

This mindset extended to advice, too. I received plenty of well-meaning and often conflicting tips, from when to carb-load to what shoes were essential for the race. The key was learning to listen to my body, lean on science when possible, and accept that not everything would apply to me. Overall, I have found different perspectives to be incredibly valuable, but these perspectives are most effective when applying a critical lens and asking Does this truly serve me?

Learning to tune out the noise and trust myself wasn’t only helpful for marathon training, it’s a mindset I’ve carried into other areas of life. Whether it’s tackling a new challenge at work, navigating personal goals, or making decisions under pressure, I’ve found that clarity comes when I start listening inward. Comparison can easily lead to burnout or discouragement, but staying focused on what worked for me physically and mentally made all the difference–especially as the training got tougher.

Embrace Imperfection and Take Action

Training for the Long Beach Marathon in the Arizona summer presented the unique challenge of racing to finish early morning long runs before temperatures exceeded 100°F. My advice for anyone facing similar conditions? Recognize that ideal circumstances are rare, and don’t wait for them.

When I started training in May, my longest run had been a 10K which is about 6.2 miles. With help from online resources and advice from friends, I built a strict training plan that I felt confident in. But as the novelty of starting wore off and the temperatures climbed, early alarms became harder to honor, and the long runs got easier to skip. I found myself making excuses to skip critical long runs saying, “There’s not enough time to run the 15 miles I had planned today, I might as well just sleep in.”

Eventually, after skipping a few too many key runs, I had to pause and ask myself: Is this really helping? What’s getting in the way? What can I change? That morning, I didn’t run the full 15 miles I had planned, but I ran 10. Those 10 miles were far more valuable than none–not just for my fitness, but because they proved what is possible when you choose to show up even if it’s not in the way you planned.

Letting go of perfection in favor of consistent effort has changed how I approach more than just running. Whether it’s managing a large project or even finishing a scrapbook, I've learned that progress comes from showing up consistently, adapting as needed, and staying focused on the bigger goal. Conditions won’t always be perfect, but commitment, flexibility, and follow-through are what truly move things forward.

Assess and Address Your Gaps

About a month before race day, I hit my peak long run of 20 miles. Cardiovascularly I felt strong, I could breathe easily, stay mentally focused, and maintain a consistent pace. But muscularly, I was hitting a wall. My legs felt heavy and my core was unstable–I knew they’d become the bottleneck in getting me across the finish line.

With that insight, I shifted my focus. I began cross-training specifically to strengthen my lower body and core. This wasn’t about doing more for the sake of checking a box, it was about intentionally addressing deficiencies to improve my performance.

This process taught me that identifying a gap isn’t a weakness, it’s an opportunity. Acknowledging where you're falling short is often the first and most important step toward meaningful improvement. By assessing my performance honestly, confronting what wasn’t working, and taking focused action, I developed a new kind of confidence rooted in self-awareness.

Whether you're training for a race or navigating your career, growth rarely comes from comfort. It comes from the willingness to evaluate yourself honestly and the courage to make a change. When approached with curiosity and earnestness, this kind of reflection becomes a powerful foundation for growth.

Enjoy the journey

By the time race day arrived, I had built the strength and endurance to run the marathon feeling great from start to finish. What I hadn’t experienced in training was the incredible energy of hundreds of fellow runners, the coastal beauty and perfect weather of Long Beach, and the crowds of supportive strangers holding hilarious signs and cheering us on. As my mentor advised, I made it a point to stay present throughout the race–soaking in the atmosphere and reminding myself that this was the moment I had been consistently working toward for over four months. That energy gave me the fuel to run harder, faster, and with more ease than ever before.

After the race I thought I might feel a sense of loss, having focused on this one goal for so long. But what I actually felt was deeply satisfying pride in what I had accomplished, and gratitude that the training was finally behind me. The lessons I learned on this journey have stayed with me far beyond race day.

 

As a new member of the Nextage team, I’m excited to apply these lessons in my role as Strategic Partnership and Outreach Manager. Whether I’m collaborating with external partners or planning for long-term business needs, I’ve learned that accomplishing big goals requires building a supportive community, showing up consistently, staying adaptable, practicing self-awareness, and trusting the process even when the finish line feels miles–or light-years–away.

Connect with Brooke on LinkedIn to learn more about Nextage and how you can get involved: https://www.linkedin.com/in/brookelynnowen/ 

Questions? Contact Brooke via email at: <bowen@nextage-llc.com>